Inventor

Masaki Kato

Inventor

Palo Alto, CA, US

Overview

1982–2021

Patent span

Physics

Primary field (CPC G)

Patents· 291 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G02Bprimary

G02BOptical elements, systems or apparatus14%

H04BTransmission7%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices6%

G11BInformation storage based on relative movement between record carrier and transducer5%

H04JMultiplex communication4%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein4%

H02KDynamo-electric machines4%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds3%

Y10TTechnical subjects covered by former us classification3%

B41JTypewriters3%

PatentTitleYear

11,118,105Polyvinyl alcohol based diverting agents2021 11,112,598Pattern drawing device, pattern drawing method, and method for manufacturing device2021 11,099,327TE polarizer based on SOI platform2021 11,098,236Particulate polyvinyl alcohol compositions having reduced dust content2021 11,101,199Power semiconductor device2021 11,086,189Silicon optical modulator, method for making the same2021 11,073,767Substrate processing apparatus, processing apparatus, and method for manufacturing device2021 11,059,167Multi-joint robot arm2021 11,056,886Power storage system2021 11,056,258Magnetic material and production method therefor2021 10,858,457Particulate polyvinyl alcohol copolymers, process for making and uses of the same2020 10,857,793Liquid discharge head, head module, head unit, liquid discharge device, and liquid discharge apparatus2020 10,854,537Power semiconductor device and power module2020 10,852,570Dual-slab-layer low-loss silicon optical modulator2020 10,812,008Motor apparatus and motor system2020 10,788,638Silicon photonics based fiber coupler2020 10,759,175Liquid discharge head, head module, liquid discharge device, and liquid discharge apparatus2020 10,751,998Liquid discharge head, liquid discharge device, liquid discharge apparatus, and head module2020 10,691,027Substrate processing apparatus, processing apparatus, and method for manufacturing device2020 10,683,185Processing system and device manufacturing method2020 10,654,958Modified polyvinyl alcohol and water-soluble film containing same2020 10,641,965Optical dispersion compensator on silicon2020 10,637,208Silicon photonics based tunable laser2020 10,627,574TE polarizer based on SOI platform2020 10,626,203Particulate polyvinyl alcohol, process for making and uses of the same2020 10,605,999Package structure for photonic transceiving device2020 10,605,991Optical equalizer for photonics system2020 10,591,827Substrate processing apparatus, processing apparatus, and method for manufacturing device2020 10,541,418Nonaqueous electrolyte secondary battery2020 10,527,795Optical dispersion compensator on silicon2020 10,527,945Substrate processing apparatus, processing apparatus, and method for manufacturing device2020 10,522,838Nonaqueous electrolyte secondary cell2019 10,508,160Modified polyvinyl alcohol and water-soluble film2019 10,507,657Liquid discharge head, liquid discharge device, and liquid discharge apparatus2019 10,505,239Battery pack2019 10,487,773Vehicle mechanical component and piston2019 10,490,822Nonaqueous electrolyte secondary battery2019 10,466,431Package structure for photonic transceiving device2019 10,438,874Power conversion device2019 10,424,768Battery pack2019 10,414,836Modified polyvinyl alcohol, resin composition, and film2019 10,401,774Image forming apparatus2019 10,365,435Surface gratings, photonics circuit, and method for wafer-level testing thereof2019 10,358,508Modified polyvinyl alhohol, resin composition, and film2019 10,336,872Resin composition and film2019 10,310,185TE polarizer based on SOI platform2019 10,297,814Lithium ion secondary battery2019 10,274,680Delay line interferometer with polarization compensation at selective frequency2019 10,274,681Optical equalizer for photonics system2019 10,274,688Package structure for photonic transceiving device2019 10,262,983Integrated photo detector, method of making the same2019 10,263,495Rotary electric machine2019 10,246,287Processing system and device manufacturing method2019 10,192,811Power semiconductor device2019 10,164,405Wavelength locker integrated with a silicon photonics system2018 10,156,795Substrate processing apparatus, processing apparatus, and method for manufacturing device2018 10,142,032Temperature insensitive delay line interferometer2018 10,135,047Battery pack2018 10,133,004Fiber coupler for silicon photonics2018 10,133,141Mach-Zehnder interferometer having bended waveguides2018 10,125,204Particulate polyvinyl alcohol, process for making and uses of the same2018 10,126,629Optical dispersion compensator on silicon2018 10,120,259Balanced Mach-Zehnder modulator2018 10,111,370Work machine2018 10,056,733Wavelength locker integrated with a silicon photonics system2018 10,038,440Electronic apparatus2018 10,031,289Delay line interferometer with polarization compensation at selective frequency2018 10,025,046Package structure for photonic transceiving device2018 10,012,797Monolithic photonic integrated circuit (PIC) with a plurality of integrated arrays of laser sources and modulators employing an extended identical active layer (EIAL)2018 10,007,190Substrate processing apparatus, processing apparatus, and method for manufacturing device2018 9,997,508Integrated photo detector, method of making the same2018 9,958,614Fiber coupler for silicon photonics2018 9,935,526Electric rotating machine2018 9,929,814'Temperature insensitive delay line interferometer'2018 9,908,957'Modified polyvinyl alcohol and water-soluble film containing same'2018 9,864,146'Fiber tray apparatus and method for handling a fiber-array/silicon-photonics-die assembly'2018 9,846,347Balanced Mach-Zehnder modulator2017 9,829,640Temperature insensitive DEMUX/MUX in silicon photonics2017 9,823,420'Fiber coupler for silicon photonics'2017 9,812,929'Electric rotating machine'2017 9,778,647'Working machine and positional deviation data acquisition method'2017 9,758,601'Modified polyvinyl alcohol and production method therefor'2017 9,759,877'Package structure for photonic transceiving device'2017 9,751,968'Vinyl alcohol polymer, thickening agent, stabilizer for emulsion polymerization, stabilizer for suspension polymerization, coating agent, coated article, sizing agent for fibers, sized yarn, and production method of textile'2017 9,746,744'Method for forming a self-aligned mach-zehnder interferometer'2017 9,738,071'Liquid discharge head, liquid discharge device, and liquid discharge apparatus'2017 9,726,841'Integrated photo detector, method of making the same'2017 9,696,604'Method for forming a self-aligned Mach-Zehnder interferometer'2017 9,671,580'Photonic transceiving device package structure'2017 9,671,581'Photonic transceiving device package structure'2017 9,664,854'Silicon photonics device and communication system therefor'2017 9,651,868'Substrate processing apparatus, processing apparatus, and method for manufacturing device'2017 9,641,255'Wavelength control of two-channel DEMUX/MUX in silicon photonics'2017 9,632,390'Balanced Mach-Zehnder modulator'2017 9,620,444'Power semiconductor device'2017 9,617,651'Anodizing apparatus and anodizing method'2017 9,612,457'Off quadrature biasing of mach zehnder modulator for improved OSNR performance'2017 9,553,671'Package structure for photonic transceiving device'2017 9,553,689'Temperature insensitive DEMUX/MUX in silicon photonics'2017 9,547,129'Fiber coupler for silicon photonics'2017 9,547,127'Broadband silicon nitride polarization beam splitter'2017 9,548,816'Wavelength control of two-channel DEMUX/MUX in silicon photonics'2017 9,523,867'Off quadrature biasing of Mach Zehnder modulator for improved OSNR performance'2016 9,500,804'Silicon photonics device and communication system therefor'2016 9,496,959'Photonic transceiving device package structure'2016 9,479,032'Rotary electric machine having non-overlapping power interconnecting part'2016 9,423,561'Method of attaching fiber block to silicon photonics'2016 9,419,742'Optical communication system having tunable sources'2016 9,401,319'Semiconductor device'2016 9,379,838'Optical communication system having tunable sources'2016 9,374,935'Manufacture work machine'2016 9,372,306'Method of achieving acceptable performance in and fabrication of a monolithic photonic integrated circuit (PIC) with integrated arrays of laser sources and modulators employing an extended identical active layer (EIAL)'2016 9,366,818'Broadband silicon nitride polarization beam splitter'2016 9,363,936'Manufacture work machine and manufacture work system'2016 9,329,337'Silicon photonics device and communication system therefor'2016 9,325,419'Wavelength control of two-channel DEMUX/MUX in silicon photonics'2016 9,323,128'Off quadrature biasing of mach zehnder modulator for improved OSNR performance'2016 9,312,962'Intensity-based modulator'2016 9,291,302'Device attachment member'2016 9,261,635'Rotator external to photonic integrated circuit'2016 9,256,084'Polarization beam splitter'2016 9,238,367'Droplet discharging head and image forming apparatus'2016 9,203,288'Rotary electric machine with power converter'2015 9,178,155'Flexible substrate, manufacturing method of display element, and manufacturing apparatus of display element'2015 9,172,467'Raman pump circuit'2015 9,168,744'Electromechanical transducer element, method of manufacturing the same, liquid droplet discharge head, and liquid droplet discharge device'2015 9,166,460'Rotary electric machine'2015 9,158,068'Wide passband AWG'2015 9,129,949'Power semiconductor module'2015 9,128,347'Optical hybrid mixer without waveguide crossings'2015 9,117,688'Semiconductor device, inverter device provided with semiconductor device, and in-vehicle rotating electrical machine provided with semiconductor device and inverter device'2015 9,062,132'Dispersion stabilizer for suspension polymerization'2015 9,036,957'Shared propagation region for an optical multiplexer or an optical demultiplexer'2015 9,031,412'Coolerless photonic integrated circuits (PICs) for WDM transmission networks and PICs operable with a floating signal channel grid changing with temperature but with fixed channel spacing in the floating grid'2015 9,025,912'Polarization material on an optical multiplexer or an optical demultiplexer'2015 9,006,879'Semicondutor device package placed within fitting portion of wiring member and attached to heat sink'2015 8,979,384'Rolling bearing device'2015 8,964,284'Banded semiconductor optical amplifier'2015 8,958,665'Scattering device on an arrayed waveguide grating'2015 8,919,926'Inkjet head and inkjet plotter'2014 8,885,038'Measuring apparatus and measuring method thereof, apparatus for correcting processing position of cutting machine and method thereof for correcting processing position, and imaging apparatus and cutting machine comprising the same'2014 8,853,898'Electrical rotating machine with improved heat sink cooling'2014 8,849,120'Wavelength division multiplexed passive optical network'2014 8,841,843'Short arc type mercury lamp'2014 8,781,324'Optical receiver integrated on a substrate'2014 8,777,823'Automatic tool changer'2014 8,777,382'Inkjet head and image forming device'2014 8,708,459'Droplet ejection head, method of manufacturing droplet ejection head, and droplet ejection apparatus'2014 8,704,415'Controller-integrated electric rotating machine with a shifted control circuit'2014 8,705,904'Photonic integrated circuits having chirped elements'2014 8,682,114'Coherent detection for an integrated circuit having a multiplexer or a demultiplexer with a shared propagation region'2014 8,657,418'Inkjet head and recording device'2014 8,654,310'Exposure method, exposure apparatus, photomask and method for manufacturing photomask'2014 8,654,307'Scanning type exposure apparatus, method of manufacturing micro-apparatus, mask, projection optical apparatus, and method of manufacturing mask'2014 8,651,701'Light source device'2014 8,646,870'Inkjet recording apparatus'2014 8,606,120'Control of an interferometric optical polarization beam splitter'2013 8,602,530'Ink-jet head and ink-jet recording apparatus'2013 8,582,975'Wavelength division multiplexed passive optical network'2013 8,556,396'Inkjet head and inkjet recording device'2013 8,547,481'Apparatus and method for black bar detection in digital TVs and set-top boxes'2013 8,548,333'Transceiver photonic integrated circuit'2013 8,542,958'Compact photonic integrated circuit having geometrically arranged active and passive regions'2013 8,538,277'Coherent optical receiver'2013 8,524,831'Polyvinyl alcohol polymer and method for producing the same'2013 8,520,188'Illumination apparatus for efficiently gathering illumination light'2013 8,491,236'Tooth plane machining method'2013 8,491,103'Inkjet head'2013 8,454,133'Inkjet head, inkjet recording apparatus, liquid droplet ejecting apparatus, and image forming apparatus'2013 8,451,507'Image-reading apparatus and image-forming apparatus'2013 8,426,518'Dispersion stabilizer'2013 8,414,110'Inkjet head'2013 8,398,491'Torque fluctuation absorbing apparatus'2013 8,364,876'Computer system'2013 8,299,666'Control apparatus-integrated dynamoelectric machine'2012 8,288,465'Polyvinyl chloride resin compositions and manufacturing method therefor'2012 8,280,594'Door opening/closing apparatus and coating film forming method'2012 8,274,638'Reflective, refractive and projecting optical system; reflective, refractive and projecting device; scanning exposure device; and method of manufacturing micro device'2012 8,260,136'Polarization beam splitter'2012 8,260,096'Photonic integrated circuit having bent active components'2012 8,252,860'Polyvinyl chloride resin composition and manufacturing method thereof'2012 8,248,122'Digital PLL circuit and method of controlling the same'2012 8,238,758'Three-arm DQPSK modulator'2012 8,238,759'High capacity transmitter implemented on a photonic integrated circuit'2012 8,233,510'Dual output laser source'2012 8,227,067'Optical recording medium, and sputtering target and method for producing the same'2012 8,222,325'Polyvinyl alcohol as co-stabilizer for PVC'2012 8,198,763'Controller-integrated electric rotating machine with a shifted control circuit'2012 8,182,127'Light source'2012 8,159,649'Exposure method, exposure apparatus, photomask and method for manufacturing photomask'2012 8,160,405'Optical integrated circuit'2012 8,155,531'Tunable photonic integrated circuits'2012 8,140,916'Unit for predicting malfunction of an apparatus'2012 8,124,315'Optical recording medium'2012 8,124,212'Sputtering target and manufacturing method therefor, and recordable optical recording medium'2012 8,111,996'Compact optical multiplexer and demultiplexer'2012 8,110,954'Electric rotating machine'2012 8,084,113'Multi-layered phase-change optical recording medium'2011 8,034,426'Two-layered optical recording medium'2011 8,009,940'Photonic integrated circuit with improved signal quality and electrostatic discharge threshold'2011 8,000,198'Phase-change type optical recording medium and reproduction method and apparatus for such a recording medium'2011 7,974,504'Reflection suppression in a photonic integrated circuit'2011 7,956,984'Exposure apparatus, optical projection apparatus and a method for adjusting the optical projection apparatus'2011 7,916,603'Phase-change optical information recording medium and method for recording and recording apparatus using the same'2011 7,898,126'Inverter-integrated rotating electric machine having improved thermal characteristics'2011 7,897,535'Sputtering target and manufacturing method therefor, and recordable optical recording medium'2011 7,894,315'Optical disk, recording method, recording medium, and optical disk unit, for recording information on multilayer optical disk'2011 7,864,293'Exposure apparatus, exposure method, and producing method of microdevice'2011 7,848,196'Power determining method, single-sided multilayer optical disk, recording method, computer program product, computer-readable medium, and optical disk apparatus'2010 7,800,993'Optical recording medium, recording method thereof and evaluation method of optical recording medium'2010 7,773,478'Optical recording medium, multi-layered optical recording medium, and optical recording method and recording apparatus using the same'2010 7,715,293'Optical recording medium and method of recording to the same'2010 7,706,379'TS transmission system, transmitting apparatus, receiving apparatus, and TS transmission method'2010 7,638,910'Electric rotating machine'2009 7,636,522'Coolerless photonic integrated circuits (PICs) for WDM transmission networks and PICs operable with a floating signal channel grid changing with temperature but with fixed channel spacing in the floating grid'2009 7,626,915'Phase-change optical recording medium and recording and reproducing method thereof'2009 D0597519'Communication relay exchange control machine'2009 7,540,817'Tensioner with one-way clutch'2009 7,541,703'Rotary electric machine'2009 7,498,701'Controller-integrated rotating electrical machine'2009 7,496,021'Method and device for recording optical data'2009 7,485,357'Optical recording medium'2009 7,458,909'Tensioner'2008 7,453,784'Information recording method, information recording apparatus, and optical information recording medium'2008 7,439,696'Rotating electric machine and manufacturing method thereof'2008 7,438,965'Phase-change information recording medium, manufacturing method for the same, sputtering target, method for using the phase-change information recording medium and optical recording apparatus'2008 7,439,311'Anti-fouling agent and method for producing the same'2008 7,423,342'Method for assembling semiconductor switching elements and heat sink in rotary electric machine and rotary electric machine'2008 D0576162'Arithmetic and control unit for computer'2008 7,394,953'Configurable integrated optical combiners and decombiners'2008 7,372,543'Exposure apparatus, optical projection apparatus and a method for adjusting the optical projection apparatus'2008 7,372,544'Exposure apparatus, optical projection apparatus and a method for adjusting the optical projection apparatus'2008 7,360,105'Computer peripheral used by being connected to a host computer to reduce power consumption in standby mode'2008 7,351,516'Optical information recording medium'2008 7,349,315'Information recording method, information recording device, optical information recording medium, program for recording information and storage medium'2008 D0563955'Card reader'2008 D0563956'Card reader'2008 D0563406'Card reader'2008 7,268,513'Motor/generator unit'2007 7,263,055'Method of recording and reproducing information and apparatus for recording and reproducing information using the method'2007 7,245,580'Optical recording medium having protective and/or adhesive layers, and method of manufacture'2007 7,224,078'Electric rotating machine for vehicle'2007 7,218,593'Recording strategy generation method and an optical information recording medium'2007 7,106,680'Device and method for recording data to optical disk using multi-pulse to enhance power pulse'2006 7,103,296'Image forming apparatus with function of sorting plurality of sheaves of original paper'2006 7,088,425'Exposure apparatus, optical projection apparatus and a method for adjusting the optical projection apparatus'2006 7,077,772'Tensioner'2006 7,075,871'Method and device for recording optical data'2006 7,070,731'Dispersion stabilizer for suspension polymerization of vinyl compound and method of producing the same'2006 7,023,527'Exposure apparatus, optical projection apparatus and a method for adjusting the optical projection apparatus'2006 6,996,041'Optical recording medium recording longest mark at speed which half of lowest guaranteed speed for the recording medium'2006 6,975,577'Optical information recording medium'2005 6,954,599'Image forming apparatus with function of sorting plurality of sheaves of original paper'2005 6,873,400'Scanning exposure method and system'2005 6,858,964'Stator iron core of electric motor, manufacturing method thereof, electric motor, and compressor'2005 6,856,064'Stator iron core of electric motor, manufacturing method thereof, electric motor, and compressor'2005 6,811,953'Exposure apparatus, method for manufacturing therof, method for exposing and method for manufacturing microdevice'2004 6,806,305'Dispersion stabilizer for suspension polymerization of vinyl compound'2004 6,806,011'Dry toner for electrophotography, and its production process'2004 6,795,169'Exposure apparatus, optical projection apparatus and a method for adjusting the optical projection apparatus'2004 D0495311'Switching apparatus for telephone set and data transmission'2004 6,757,232'Method of recording and reproducing information and apparatus for recording and reproducing information using the method'2004 6,750,951'Optical apparatus, exposure apparatus, and exposure method'2004 6,717,651'Exposure apparatus, method for manufacturing thereof and method for manufacturing microdevice'2004 6,686,112'Electrophotographing dry-type toner and production method therefor'2004 6,635,709'Dispersion stabilizer for suspension polymerization of vinyl compound'2003 6,592,958'Optical recording medium and sputtering target for fabricating the recording medium'2003 6,556,278'Exposure/imaging apparatus and method in which imaging characteristics of a projection optical system are adjusted'2003 6,515,821'Floppy disk drive control apparatus capable of ensuring seek operation using a stepping motor having a low torque'2003 6,480,262'Illumination optical apparatus for illuminating a mask, method of manufacturing and using same, and field stop used therein'2002 6,378,483'Lubrication system for four-stroke engine'2002 6,351,305'Exposure apparatus and exposure method for transferring pattern onto a substrate'2002 6,351,093'Floppy disk drive control apparatus capable of ensuring seek operation using a stepping motor having a low torque'2002 D0438184'Portable radiotelephone set'2001 6,083,340'Process for manufacturing a multi-layer circuit board'2000 6,034,780'Surface position detection apparatus and method'2000 5,978,069'Exposure apparatus and methods'1999 5,956,205'Disk holding mechanism capable of preventing a disk from undesirable vibration within a disk holder unit'1999 5,920,454'Capacitor-mounted circuit board'1999 5,850,279'Alignment method, projection exposure method, and projection exposure apparatus'1998 5,838,449'Optical apparatus'1998 5,729,331'Exposure apparatus, optical projection apparatus and a method for adjusting the optical projection apparatus'1998 5,726,757'Alignment method'1998 5,684,595'Alignment apparatus and exposure apparatus equipped therewith'1997 5,640,227'Exposure apparatus and exposure method for minimizing defocusing of the transferred pattern'1997 5,271,795'Method of growing crystals'1993 5,014,519'Automotive air tempering apparatus'1991 4,707,460'Method for regenerating phosphorus-molybdenum-alkali containing oxidation catalyst'1987 4,694,798'Automotive engine idling speed control system with variable idling speed depending upon cooling air temperature in automotive air conditioning system'1987 4,387,755'Pneumatic tires'1983 4,352,205'Tuning system'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2021Based in Tokyo, JP· patent location history

1997–2021Patents assigned to NIKON CORP (37)· patent assignee history

1997–2021Based in Yokohama, JP· patent location history

2003–2013Based in Kanagawa, JP· patent location history

2005–2021Patents assigned to MITSUBISHI ELECTRIC CORP (30)· patent assignee history

2008–2018Patents assigned to INFINERA CORP (37)· patent assignee history

2011–2020Patents assigned to KATO MASAKI (91)· patent assignee history

2011–2021Based in Palo Alto, CA, US· patent location history

2016–2021Patents assigned to INPHI CORP (55)· patent assignee history

2016–2021Based in Toyota, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KATO MASAKIself	91	2011–2020
INPHI CORP	55	2016–2021
INFINERA CORP	37	2008–2018
NIKON CORP	37	1997–2021
MITSUBISHI ELECTRIC CORP	30	2005–2021

Locations

Location	Patents	Span
Palo Alto, California, US	85	2011–2021
Tokyo, JP	41	1987–2021
Yokohama, JP	36	1997–2021
Kanagawa, JP	15	2003–2013
Toyota, JP	13	2016–2021