Inventor

Takeshi Nakajima

Inventor

Tokyo, JP

Overview

1984–2020

Patent span

Physics

Primary field (CPC G)

Patents· 167 as inventor

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

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer16%

Y10TTechnical subjects covered by former us classification6%

G02BOptical elements, systems or apparatus5%

H04NPictorial communication, e.g. television4%

LOC123%

G06FElectric digital data processing3%

B29CShaping or joining of plastics3%

H04LTransmission of digital information, e.g. telegraphic communication3%

F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges3%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations2%

PatentTitleYear

10,787,957Waste gate valve device including a projecting portion to reduce rattling for a turbocharger2020 10,660,934Neuroprotective peptide2020 10,590,307Waterproof sheet and waterproof treatment2020 10,539,879Optical apparatus, exposure apparatus, method of manufacturing optical apparatus, and method of manufacturing article2020 10,495,978Projection optical system, exposure apparatus, and device manufacturing method2019 D0856870Rear bumper for automobile2019 D0856556Headlamp for an automobile2019 D0856214Rear bumper for automobile2019 D0853901Radiator grille for automobile2019 10,269,470Cable core and transmission cable2019 D0843899Front bumper for automobile2019 D0840564Rear combination lamp for an automobile2019 D0830905Automobile and/or toy replica thereof2018 D0824816Rear bumper for automobile2018 D0824815Front bumper for automobile2018 10,027,060Adapter device and electronic device2018 9,982,120Polypropylene compositions2018 9,976,056Waterproof sheet and waterproof treatment2018 9,797,129'Waterproof sheet for outdoor tank and method for applying same'2017 9,790,976'Fastener'2017 9,758,935'Waterproof sheet for use in bridge pier repair and waterproof working method using the same'2017 9,709,881'Discharge lamp lighting device, discharge lamp lighting method, and projector'2017 9,687,646'Peritoneal dialysis connection system and method for using ultraviolet light emitting diodes'2017 9,617,222'Alkynyl indazole derivative and use thereof'2017 9,611,614'Waterproofing method for outdoor tank'2017 9,605,116'Method for secondary molding of polymer NANO oriented crystal material'2017 9,562,231'Therapeutic agent for corneal epithelial disorder'2017 D0756279'Instrument panel for automobile'2016 9,138,933'Process and apparatus for producing crystalline resin film or sheet'2015 8,999,504'Waterproof sheet for use in bridge pier repair and waterproof working method using the same'2015 8,911,109'Peritoneal dialysis connection system and method for using ultraviolet light emitting diodes'2014 8,810,848'Image forming apparatus for selecting pages for N-up printing'2014 8,728,616'Polymer sheet and method for producing same'2014 8,661,554'Controlling program, image forming apparatus and print controlling method'2014 8,636,454'Fastener'2014 8,593,071'Discharge lamp lighting device, projector, and discharge lamp lighting method'2013 8,567,281'Rotating device and robot arm device'2013 8,518,412'Partial peptide of lacritin'2013 8,508,781'Image forming apparatus which determines necessity of storing print data'2013 8,495,802'Clip'2013 8,469,545'Peritoneal dialysis connection system and method for using ultraviolet light emitting diodes'2013 8,464,360'Information processing apparatus and image processing program'2013 8,451,470'Print control apparatus and printing apparatus'2013 8,393,058'Clip'2013 8,383,130'Partial peptide of lacritin'2013 8,345,285'Displaying jobs in priority order with elapsed time on information processing apparatus'2013 8,270,542'Method for evaluating quality of read signal and apparatus for reading information'2012 8,268,794'Pharmaceutical containing HIF-1 alpha and HIF-2 alpha expression inhibitor'2012 8,270,268'Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus'2012 8,245,367'Fastener'2012 8,245,155'Computer implemented display, graphical user interface, design and method including scrolling features'2012 8,228,526'Image processing apparatus'2012 8,197,087'Peritoneal dialysis patient connection system using ultraviolet light emitting diodes'2012 8,172,144'Media storing code detecting program, code detecting method, and image forming apparatus'2012 8,166,844'Rotating device and robot arm device'2012 8,170,364'Image processing method, image processing device, and image processing program'2012 8,130,636'Communication control system'2012 8,125,675'Labeling method, recording method, labeling apparatus, recording apparatus and recording medium'2012 8,098,392'Controlling program and image forming apparatus'2012 8,054,850'Communication control system'2011 8,018,810'Recording control apparatus, recording and reproduction apparatus, and recording control method'2011 7,986,597'PLL control device and reproduction apparatus with linking portion control'2011 7,936,653'Information processing device, access device, recording medium, information processing method, and information processing program'2011 7,924,673'Information processing device, access device, recording medium, information processing method, and information processing program'2011 7,907,487'Recording/reproduction apparatus, recording/reproduction method, program, and recording power adjustment apparatus'2011 7,874,279'Vehicle and motor controller for vehicle'2011 7,869,014'System for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber'2011 7,862,272'Clip'2011 7,848,198'Information processing device, access device, recording medium, information processing method, and information processing program'2010 7,819,211'Motorcycle'2010 7,808,246'Apparatus and method for verifying a seal between multiple chambers'2010 7,785,654'Method of producing cosmetics-impregnated sheet'2010 7,768,893'Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus'2010 7,646,686'Recording/reproduction apparatus which adjusts recording power based on a partial response maximum likelihood (PRML) technique'2010 RE041022'Optical recording disk capable of resynchronization in digital encoding and decoding'2009 7,623,586'Frequency and phase control apparatus and maximum likelihood decoder'2009 RE040996'Optical recording disk capable of resynchronization in digital encoding and decoding'2009 7,584,315'Integrated circuit monitoring an internal signal converted from an analog input signal'2009 7,575,267'Metal clip for vehicle accessory fixation and structure using the same'2009 7,548,656'Method and apparatus for processing image signals by applying a multi-resolution conversion processing for reducing the image size and applying a dyadic wavelet transform'2009 7,536,755'Clip having engaging pawl portions and projecting portions'2009 7,535,629'Method and apparatus for controlling multiple-wavelength-pumped Raman amplifier and computer product'2009 7,518,971'Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus'2009 7,518,970'Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus'2009 7,453,658'Recording control apparatus, recording and reproduction apparatus, and recording control method'2008 7,436,995'Image-processing apparatus, image-capturing apparatus, image-processing method and image-processing program'2008 7,424,191'System for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber'2008 7,417,815'Recording control apparatus, recording and reproduction apparatus, and recording control method'2008 D0575204'Radiator grille for vehicle'2008 7,414,946'Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus'2008 7,408,633'Apparatus and method for inspecting film defect'2008 7,403,462'Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus'2008 7,385,903'Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus'2008 7,369,278'Image-processing apparatus, image-processing method, image-processing program and image-recording apparatus'2008 D0567724'Bumper for vehicle'2008 7,359,201'Heat-generating electronic part cover and cover mounting method'2008 7,288,598'Polyolefin masterbatch for preparing impact-resistant polyolefin articles'2007 RE039832'Optical recording disk capable of resynchronization in digital encoding and decoding'2007 7,262,903'Method and apparatus for controlling multiple-wavelength-pumped raman amplifier and computer product'2007 7,260,266'Image processing method, image processing apparatus, image processing program and image recording apparatus'2007 7,158,464'Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus'2007 7,146,085'Method and system for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber, method of manufacturing optical fibers, method of measuring wavelength-dispersion distribution, method of compensating for measurement errors, and method of specifying conditions of measurement'2006 7,145,848'Optical disk apparatus using tilt and aberration correction control system'2006 7,120,102'Jitter detection apparatus and jitter detection method'2006 RE039306'Optical disc device'2006 7,095,696'Recording/reproducing device'2006 7,038,869'Recording control apparatus, recording and reproduction apparatus, and recording control method'2006 7,035,327'Adaptive equalizer for use in information reproducing apparatus'2006 D0515460'Surface configuration of a vehicle body, toy, and/or replica'2006 7,003,202'Method and system for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber, method of manufacturing optical fibers, method of measuring wavelength-dispersion distribution, method of compensating for measurement errors, and method of specifying conditions of measurement'2006 6,937,551'PRML detector having a viterbi decoder outputting temporary judgement results'2005 6,934,233'Waveform equalizer for a reproduction signal obtained by reproducing marks and non-marks recorded on a recording medium'2005 6,807,134'Asymmetry detection apparatus, jitter detection apparatus, and recording/reproduction apparatus'2004 6,768,832'Arrayed waveguide grating optical multiplexer/demultiplexer and method for manufacturing the same'2004 6,724,706'Digital adaptive equalizer for different quality signals'2004 6,678,230'Waveform equalizer for a reproduction signal obtained by reproducing marks and non-marks recorded on a recording medium'2004 6,618,337'Information recording and reproduction apparatus'2003 6,591,044'Optical waveguide circuit module'2003 6,586,531'Polyolefin masterbatch and composition suitable for injection molding'2003 6,577,568'Optical disk apparatus using tilt and aberration correction control system'2003 6,563,458'GPS reception system'2003 6,539,158'Optical waveguide circuit'2003 6,501,896'Optical waveguide circuit'2002 6,490,395'Arrayed waveguide grating and method for compensating optical transmitting center wavelength of light traveling through the same'2002 6,445,853'Arrayed waveguide grating'2002 6,434,098'Optical disc device'2002 RE037801'Optical recording disk capable of resynchronization in digital encoding and decoding'2002 6,418,249'Optical multiplexer/demultiplexer'2002 6,415,072'Optical wavelength multiplexing and dividing device'2002 6,404,946'Arrayed waveguide grating type optical multiplexer/demultiplexer'2002 6,393,170'Optical multiplexer/demultiplexer'2002 6,195,481'Array waveguide diffraction grating optical multiplexer/demultiplexer'2001 6,118,568'Polygon mirror motor and polygon mirror supporting structure'2000 5,976,166'Claspless stud for piercing'1999 5,883,455'Polygon mirror motor and polygon mirror supporting structure'1999 5,818,545'Remote command light receiving window arranged in logo on frame around television screen'1998 5,759,627'Coating Apparatus'1998 5,743,722'Coating apparatus'1998 5,719,843'Method of maximum likelihood decoding and digital information playback apparatus'1998 5,675,987'Ornamental pierced ear rings'1997 5,675,694'Video disk, recording apparatus of video disk, and its reproducing apparatus'1997 5,636,194'Method of recording and reproducing data on a disk'1997 5,623,477'Optical recording disk capable of resynchronization in digital encoding and decoding'1997 5,574,322'Motor, a printer having such a motor and a disk drive system having such a motor'1996 5,546,427'Method and apparatus for digital code resynchronization in data encoding/decoding'1996 5,541,462'Rotary body bearing apparatus, motor and polygon mirror motor'1996 5,526,064'Cabinet molded in resin'1996 5,490,126'Apparatus for recording and reproducing data on a disk'1996 5,469,008'Motor with a bearing lubricated by magnetic fluid'1995 5,445,460'Pressure-contact device for applying print head onto platen of printer'1995 5,399,034'Ink ribbon cartridge'1995 5,342,131'Tension balancer device for ink ribbon'1994 5,284,716'Magnetic recording medium'1994 5,211,653'Piercing apparatus'1993 5,186,754'Coater'1993 5,099,881'Flow dividing structure of mass flow controller'1992 5,097,792'Coating apparatus'1992 5,084,335'Magnetic recording medium comprising upper and lower magnetic layers'1992 4,972,341'Graphic printer'1990 4,962,467'Graphic printer'1990 4,691,382'Battery saving signal generating circuit'1987 4,689,676'Television video signal synchronizing apparatus'1987 4,679,953'Paper feeding and ejecting device for a printing apparatus'1987 4,653,028'Radio paging receiver'1987 4,563,680'Digital radio paging receiver'1986 4,479,261'Battery saving circuit for paging receiver'1984 4,477,807'Radio pager with display device'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–2017Based in Tokyo, JP· patent location history

1987–2019Based in Kanagawa, JP· patent location history

1992–2014Based in Hino, JP· patent location history

1993–2018Patents assigned to NAKAJIMA TAKESHI (32)· patent assignee history

1996–2008Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (27)· patent assignee history

1996–2020Based in Osaka, JP· patent location history

2001–2011Patents assigned to FURUKAWA ELECTRIC CO LTD (17)· patent assignee history

2002–2012Based in Nara, JP· patent location history

2006–2019Patents assigned to NISSAN MOTOR (13)· patent assignee history

2008–2012Patents assigned to PANASONIC CORP (18)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NAKAJIMA TAKESHIself	32	1993–2018
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD	27	1996–2008
PANASONIC CORP	18	2008–2012
FURUKAWA ELECTRIC CO LTD	17	2001–2011
NISSAN MOTOR	13	2006–2019

Locations

Location	Patents	Span
Tokyo, JP	38	1984–2017
Nara, JP	35	2002–2012
Kanagawa, JP	25	1987–2019
Osaka, JP	16	1996–2020
Hino, JP	16	1992–2014