Inventor

Masaaki Sato

Inventor

Yokohama, JP

Overview

1976–2021

Patent span

Physics

Primary field (CPC G)

Patents· 287 as inventor

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

G03Gprimary

G03GElectrography13%

G11BInformation storage based on relative movement between record carrier and transducer8%

LOC105%

Y10TTechnical subjects covered by former us classification4%

Y02TClimate change mitigation technologies related to transportation3%

B26BHand-held cutting tools not otherwise provided for3%

F01NGas-flow silencers or exhaust apparatus for machines or engines in general3%

G06FElectric digital data processing3%

H04NPictorial communication, e.g. television3%

B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material2%

PatentTitleYear

11,133,716Wireless charging device2021 11,122,985Biopotential measuring apparatus2021 11,121,085Trench walls, conductive structures having different widths and methods of making same2021 11,114,276Apparatus, method, and program for processing and observing cross section, and method of measuring shape2021 11,094,503Method of preparing thin film sample piece and charged particle beam apparatus2021 11,073,453Automatic sample preparation apparatus and automatic sample preparation method2021 10,907,334Sanitary washing device2021 10,823,040Exhaust gas control system for internal combustion engine2020 10,824,110Process cartridge and image forming apparatus2020 10,782,647Cartridge and electrophotographic image forming apparatus2020 10,753,249Exhaust emission control device for internal combustion engine2020 10,712,708Cartridge, process cartridge and electrophotographic image forming apparatus2020 10,713,098Information processing apparatus and cookie information management method2020 10,705,480Cartridge, process cartridge and electrophotographic image forming apparatus2020 10,705,728Information processing apparatus, method and program for controlling the same, and storage medium2020 10,678,185Cartridge, process cartridge and electrophotographic image forming apparatus2020 10,677,125Exhaust gas purification apparatus for internal combustion engine2020 10,648,391Abnormality diagnosis system for an exhaust gas purification apparatus2020 10,626,778Vehicle and control method for vehicle2020 10,591,868Image forming apparatus including a movable engageable member and process cartridge including a force receiving portion2020 10,556,262Replacement method for attaching and detaching tool for press brake and tool storage device2020 D0873337Process cartridge for image forming apparatus2020 D0873340Bearing for process cartridge for image forming apparatus2020 D0873339Side cover for process cartridge for image forming apparatus2020 D0873338Process cartridge for image forming apparatus2020 D0872796Coupling for process cartridge for image forming apparatus2020 10,534,313Process cartridge and image forming apparatus2020 10,520,886Image forming apparatus and cartridge2019 D0869549Bearing for process cartridge for image forming apparatus2019 10,486,213Sheet material bending system2019 10,459,402Cartridge and electrophotographic image forming apparatus2019 10,408,120Opening/closing valve structure2019 10,401,788Image forming apparatus including a movable engageable spacing member and process cartridge including a force receiving portion2019 10,386,786Cartridge, member constituting cartridge, and image forming apparatus2019 10,369,608Tool mounting stocker, tool storing device and tool/hand storing device, and tool replacing method by robot and control device thereof2019 10,353,339Cartridge with restriction member for restricting relative movement of toner cartridge and process cartridge2019 10,323,558Exhaust gas purification apparatus for internal combustion engine2019 10,293,394Sheet material bending system2019 10,254,712Cartridge, process cartridge and electrophotographic image forming apparatus2019 10,257,388Image forming apparatus, control method for image forming apparatus, and storage medium for setting user authentication2019 10,233,805Exhaust gas control system2019 D0843443Process cartridge for image forming apparatus2019 10,228,652Cartridge, process cartridge and electrophotographic image forming apparatus2019 10,221,741Exhaust gas control system for internal combustion engine2019 10,168,664Process cartridge including protrusion to receive a force for moving a developer roller2019 10,139,777Cartridge, process cartridge and electrophotographic image forming apparatus2018 10,132,637Vehicular information provision system, vehicular information provision method, and program2018 10,089,864Operating management system, operating management method, and program2018 10,067,444Remanufacturing method of developer accommodating unit2018 10,039,452Optical sensor, optical testing device, and optical characteristic detection method2018 10,031,442Remanufacturing method of developer accommodating unit2018 9,996,051Image forming apparatus and cartridge2018 9,975,161Tool mounting stocker, tool storing device and tool/hand storing device, and tool replacing method by robot and control device thereof2018 9,962,842Slit blade block and electric razor having slit blade block2018 9,910,387'Remanufacturing method of developer accommodating unit'2018 9,910,401'Cartridge and member used for cartridge'2018 9,886,222'Image forming apparatus that displays button for accessing server, method of controlling the same, and storage medium'2018 9,885,974'Developing cartridge, process cartridge and image forming apparatus'2018 9,836,020Process cartridge with force receiving portion configured to receive a force to move a developing roller2017 9,808,943'Electric shaver and its head'2017 9,804,560'Cartridge, process cartridge and electrophotographic image forming apparatus'2017 9,632,451'Developing apparatus, process cartridge and unit'2017 9,571,272'Image forming apparatus, information processing method, and control method'2017 9,535,372'Remanufacturing method of developer accommodating unit'2017 9,529,298'Developing cartridge having a frame rotatably supporting a developing roller'2016 9,528,416'Exhaust gas purification apparatus for internal combustion engine'2016 9,494,915'Image forming apparatus and cartridge'2016 9,429,877'Process cartridge and electrophotographic image forming apparatus'2016 9,429,906'Image forming apparatus including a movable engageable member and process cartridge including a force receiving portion'2016 9,359,927'Exhaust gas purification system for an internal combustion engine'2016 D0758018'Shaver head'2016 9,297,752'Object observing apparatus, object observing method, and storage medium'2016 D0752811'Electric shaver'2016 9,254,517'Upper die and temporary clamping method thereof'2016 9,250,607'Image forming apparatus and cartridge'2016 9,137,393'Image processing apparatus, method and non-transitory computer-readable storage medium for executing workflow using priority information'2015 9,134,696'Cartridge with first and second coupling members for engaging main assembly'2015 9,122,235'Process cartridge and image forming apparatus with means to regulate movement of developing unit with respect to drum unit in axial direction of developing roller'2015 9,063,461'Image forming apparatus provided with an agitation member configured to be rotated'2015 9,041,945'System, method and program for controlling setting values in an image forming apparatus'2015 8,943,802'Exhaust gas purification system for an internal combustion engine'2015 8,919,102'Exhaust purifying device for internal combustion engines'2014 8,868,174'Brain information output apparatus, robot, and brain information output method'2014 8,862,022'Image forming apparatus and cartridge'2014 8,819,946'Electric shaver'2014 8,806,763'Electric shaver'2014 8,753,013'Self-standing bag and manufacturing method thereof'2014 8,695,411'Oil-pressure determination apparatus of engine'2014 8,640,668'Balancer device of engine'2014 8,609,034'Microreactor and liquid phase chemical reaction method using microreactor'2013 8,594,527'Process cartridge having toner scatter preventing sheet and photoelectrographic image forming apparatus'2013 8,592,033'Pressure-sensitive adhesive tape for battery and battery using the pressure-sensitive adhesive tape for battery'2013 8,534,053'Exhaust purification apparatus for internal combustion engine'2013 8,524,361'Heat-peelable pressure-sensitive adhesive sheet for cutting laminated ceramic sheet and method for cut-processing laminated ceramic sheet'2013 8,509,660'Developing apparatus and process cartridge'2013 8,479,397'Electric shaver'2013 8,464,264'Information processing apparatus and method of controlling same'2013 8,409,884'Process for producing organic electroluminescent panel'2013 8,401,420'Process cartridge having toner scatter preventing sheet having roughened contact end and photoelectrographic image forming apparatus'2013 8,396,525'Real-time simultaneous measurement system, real-time simultaneous measurement apparatus, real-time simultaneous measurement method, and storage medium in which program is stored'2013 8,387,583'Engine balancer'2013 8,355,004'Keyboard device and electronic equipment using same'2013 8,307,635'Exhaust purification system of internal combustion engine'2012 8,296,955'Electric shaver'2012 8,287,615'High-strength composition iron powder and sintered part made therefrom'2012 8,262,374'Motor pump for headlamp cleaner'2012 8,256,280'Arrangement structure for sensor to be mounted to engine of vehicle'2012 8,206,033'Self-standing bag and manufacturing method thereof'2012 8,146,253'Inner cutter of electric shaver and reciprocating electric shaver'2012 8,078,584'Document retrieving system, document retrieving apparatus, method, program and storage medium therefor'2011 8,011,102'Dry shaver'2011 8,001,824'Bending apparatus and method for managing tools, method for arranging tools and method for selecting tool stocker'2011 7,996,995'Electric shaver'2011 7,983,589'Developing apparatus, process cartridge, and image forming apparatus'2011 D0633137'Process cartridge'2011 D0631091'Process cartridge'2011 D0631090'Process cartridge'2011 D0631088'Process cartridge'2011 D0631089'Process cartridge'2011 7,865,292'Throttle controlling apparatus for diesel engine with supercharger'2011 7,847,857'Imaging device and exposure control method for imaging device'2010 7,840,155'Developing device and image forming apparatus'2010 7,831,385'Route guidance providing system, image forming apparatus, and image forming method'2010 7,813,668'Process cartridge, developing cartridge and electrophotographic image forming apparatus'2010 7,796,814'Imaging device'2010 7,792,356'Imaging device'2010 7,739,798'Dry shaver'2010 7,730,621'Shaving foil for a dry shaver'2010 7,720,408'Process cartridge, developing cartridge and electrophotographic image forming apparatus'2010 7,704,036'Drive source and transportation robot'2010 7,699,244'Cleaning device for a vehicular lamp'2010 7,689,146'Electrophotographic image forming apparatus and process cartridge'2010 7,660,550'Process cartridge and image forming apparatus'2010 7,580,659'Developing device and image forming apparatus'2009 7,525,927'Unicast-to-multicast converting apparatus, method, and computer program product, and monitoring system comprising the same'2009 D0588001'Packaging container'2009 7,499,663'Electrophotographic image forming apparatus and process cartridge'2009 7,454,919'Hot-water supply apparatus'2008 7,448,554'Cleaning device for a vehicular lamp'2008 7,412,193'Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting method'2008 7,355,654'Character display control circuit'2008 7,349,657'Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting method'2008 7,242,641'Timepiece dial and production method therefor'2007 7,224,925'Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting method'2007 7,218,882'Developing device, process cartridge, developer layer regulating member, and developer layer regulating member attaching method'2007 7,182,276'Cleaning device of vehicle lamp'2007 7,158,736'Process cartridge having first and second rotatably coupled frames and electrophotographic image forming apparatus mounting such process cartridge'2007 7,155,141'Electrophotographic image forming apparatus'2006 7,149,457'Process cartridge and electrophotographic image forming apparatus'2006 D0531534'Body composition monitor'2006 7,127,818'Electric shaver'2006 D0527663'Weight display'2006 D0523365'Electronic scale'2006 D0521890'Electronic scale'2006 D0520891'Electronic scale'2006 D0520893'Operating section for body composition meter'2006 D0520890'Scale'2006 D0520391'Body composition meter'2006 7,040,535'Vending machine'2006 7,029,429'Bending press system'2006 7,017,270'Reciprocation type electric shaver'2006 7,017,545'Balancer device of engine'2006 6,890,104'Hydrodynamic bearing device'2005 D0503120'Body composition meter'2005 D0503119'Body composition meter'2005 6,843,760'Bending press system'2005 D0498155'Electronic scale'2004 D0497818'Scale'2004 D0497562'Scale'2004 D0497561'Scale'2004 6,795,124'External synchronization system using composite synchronization signal and camera system using the same'2004 6,780,145'Bending press system'2004 6,758,797'Bending press system'2004 D0492609'Electronic scale'2004 6,725,974'Balancer shaft apparatus for an engine'2004 6,727,957'External synchronizing system and camera system using thereof'2004 6,669,532'Device and method for cool air cooling type machining'2003 6,663,287'Thrust dynamic pressure bearing apparatus and method for manufacturing the same'2003 6,656,099'Bending press system'2003 6,544,352'Method for the compaction of soft magnetic powder'2003 6,530,175'Window lifting and lowering apparatus'2003 D0469779'Input device'2003 6,501,459'Input device for game machine, and method of controlling position of controller thereof'2002 6,480,726'Portable telephone device'2002 D0465166'Scale'2002 D0463302'Baby scale'2002 6,407,654'Electromagnetic relay, apparatus and method for making it'2002 6,382,165'Engine balancer apparatus'2002 6,374,077'Sheet processing apparatus and image forming apparatus having this'2002 6,344,169'Method for compaction of powders for powder metallurgy'2002 6,328,636'Device and method for machining in which cool air cooling is used'2001 6,293,017'Reciprocating type electric shaver'2001 D0442872'Electronic scale'2001 D0430053'Body fat monitor'2000 6,083,084'Machining apparatus and process using cold gas stream, and cold gas stream cooling device and method for centerless grinder'2000 D0425807'Scale with display'2000 D0420609'Scale'2000 D0415972'Scale with display'1999 D0414710'Scale'1999 5,951,000'Sheet post-processing apparatus'1999 5,938,186'Sheet post-processing apparatus'1999 5,932,722'Hydroxygallium phthalocyanine compound, production process therefor and electrophotographic photosensitive member using the compound'1999 5,905,282'Multi-terminal surge protection device'1999 5,897,250'Sheet processing apparatus'1999 5,830,605'Gradation mask method of producing the same and method of forming special surface profile on material using gradation mask'1998 5,785,877'Dry etching method'1998 5,778,300'Sheet processing device'1998 5,768,641'Camera with character mark display device'1998 5,735,515'Sheet handling apparatus with folded and non-folded sheet transfer speeds'1998 5,617,196'Original feeding method with originals mounted side by side'1997 5,555,512'Picture processing apparatus for processing infrared pictures obtained with an infrared ray sensor and applied apparatus utilizing the picture processing apparatus'1996 5,541,588'Control signal transfer device for a position detecting sensor'1996 5,505,057'Pattern classification system'1996 5,486,709'Surge protection device'1996 5,390,016'Image forming apparatus and method for prefeeding a sheet to a conveying path from a sheet accommodating device prior to generation of a sheet feeding signal'1995 5,385,340'Sheet post-processing apparatus'1995 5,376,809'Surge protection device'1994 5,371,385'Surge protection device'1994 5,337,371'Pattern classification system'1994 5,331,433'Image reader'1994 5,241,926'Engine cooling apparatus'1993 5,203,552'Sheet feeding apparatus'1993 5,137,265'Sheet post-processing apparatus'1992 5,083,185'Surge absorption device'1992 5,059,860'Illuminating light source for color image recording device'1991 5,052,669'Automatic document feeder'1991 5,021,837'Apparatus discharged sheet stacking'1991 4,975,192'Cyclone separator'1990 4,963,242'Plasma etching apparatus'1990 4,955,051'Dictating apparaus which is remotely controlled utilizing a push-button telephone'1990 4,942,739'Mixing chamber for an air-conditioning system'1990 4,935,775'Automatic document feeder with an image area designating device for duplex copying'1990 4,660,068'Substrate structure of semiconductor device and method of manufacturing the same'1987 4,602,358'Car stereo set'1986 4,566,499'Jacquard mechanism'1986 4,554,835'Automatic flaw detection device'1985 4,543,618'Tape recorder'1985 4,524,369'Plastic information-recording medium'1985 4,514,965'Apparatus for continuously packing medical appliances for sterilization'1985 4,501,013'Car stereo set'1985 4,485,276'Personal audio device'1984 4,472,751'Tape recorder apparatus with portable plug-in module'1984 4,459,624'Magnetic reproducing apparatus'1984 4,434,444'Tape cassette loading device for cassette tape recorder'1984 4,423,812'Cassette receptacle device'1984 4,421,584'Process for the production of sheet-like material comprising split fibers and apparatus therefor'1983 4,388,492'Miniature stereo device with extensible speakers'1983 4,385,240'Audio device for motor vehicle'1983 4,369,478'Automobile magnetic tape playing apparatus'1983 4,366,514'Magnetic reproducing apparatus'1982 4,334,251'Tape recorder having cassette reversing device'1982 4,326,659'Magnetic recording-reproducing apparatus'1982 4,321,638'Superminiature cassette tape recorder'1982 4,303,807'Ultra-small portable sound reproducing apparatus'1981 4,300,713'Cassette tape recorder'1981 4,288,827'Automatic switching device for cassette tape recorder with low frequency compensating means'1981 4,288,826'Pad device for use in tape cassette'1981 4,285,020'Tape cassette'1981 4,258,402'Small size tape recorder with adapter'1981 4,237,540'Tape recorder with table computer'1980 4,233,686'Radio tuner for coupling with tape recorder'1980 4,227,222'Hand-operated tape recorder for dictation'1980 4,216,509'Cassette player/recorder interchangeably handling cassettes of two sizes'1980 4,206,487'Cassette magnetic recording and reproducing apparatus and mini-cassette adapter'1980 4,203,048'Coil support for disc rotor of coreless motor'1980 4,188,504'Signal processing circuit for binaural signals'1980 4,185,307'Tape cassette'1980 4,181,089'Casette tape take-up indicator'1980 4,178,477'Telephone Recorder mechanical actuator'1979 4,164,675'Rotor of coreless motor and method of manufacturing same'1979 4,158,865'Automatic switching device for cassette tape recorder'1979 4,156,259'Tape recorder in which a cassette tape and a card are co-used'1979 4,151,470'Combined portable tape recorder and stereophonic receiver system'1979 4,143,288'Coreless motor'1979 4,120,037'Desk-top electronic calculator and tape recorder assembly'1978 4,118,744'Tape end detection release device for tape recorder'1978 4,102,452'Storage case'1978 4,090,224'Apparatus for preventing inadvertent erasure of cassette tape'1978 4,073,451'Tape cassette'1978 4,072,995'Tape viewing system for micro-cassette tape recorder'1978 4,068,378'Portable chain saw'1978 4,046,973'Combined portable tape recorder and stereophonic receiver system'1977 4,044,233'End predictor for cassette tape'1977 4,032,983'Adapter for use in transcribers'1977 4,017,902'Cassette ejector for tape recorder'1977 3,993,920'Coreless motor'1976 3,964,099'Cassette adapter'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1990Patents assigned to OLYMPUS OPTICAL CO (47)· patent assignee history

1976–1999Based in Hachioji, JP· patent location history

1977–2018Patents assigned to SATO MASAAKI (32)· patent assignee history

1978–2021Based in Tokyo, JP· patent location history

1980–2020Based in Yokohama, JP· patent location history

1990–2020Patents assigned to CANON KK (88)· patent assignee history

1990–2021Based in Kanagawa, JP· patent location history

1999–2006Patents assigned to TANITA SEISAKUSHO KK (22)· patent assignee history

1999–2006Based in Shiki, JP· patent location history

2000–2020Patents assigned to TOYOTA MOTOR CO LTD (18)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CANON KK	88	1990–2020
OLYMPUS OPTICAL CO	47	1976–1990
SATO MASAAKIself	32	1977–2018
TANITA SEISAKUSHO KK	22	1999–2006
TOYOTA MOTOR CO LTD	18	2000–2020

Locations

Location	Patents	Span
Yokohama, JP	62	1980–2020
Hachioji, JP	47	1976–1999
Kanagawa, JP	25	1990–2021
Tokyo, JP	20	1978–2021
Shiki, JP	17	1999–2006