Inventor

Akira Kojima

Inventor

Kanagawa, JP

Overview

1978–2021

Patent span

Physics

Primary field (CPC G)

Patents· 102 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 transducer11%

G06FElectric digital data processing7%

H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy4%

LOC164%

LOC244%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

H04NPictorial communication, e.g. television3%

G02BOptical elements, systems or apparatus3%

G03CPhotosensitive materials for photographic purposes3%

PatentTitleYear

D0922520Water purifier2021 D0915914Thermogravimetric analyzer2021 D0909607Clinical analyzer2021 D0909610Sample supply unit2021 D0909609Clinical analyzer2021 D0909608Clinical analyzer2021 10,850,177Virtual environment construction apparatus, method, and computer readable medium2020 D0884899Medical breast examination device2020 9,924,197'Image encoding method, image decoding method, image encoding apparatus, image decoding apparatus, image encoding program, and image decoding program'2018 9,812,702'Lithium ion secondary battery having positive electrode that comprises thermal run-away suppressing layer on positive electrode active material layer'2017 9,590,237'Lithium-ion secondary battery and method for producing the same'2017 9,583,765'Positive electrode active material for sodium ion secondary battery, positive electrode, and sodium ion secondary battery'2017 9,330,805'Lithium silicate-based compound, positive electrode active material for lithium ion secondary battery, and lithium ion secondary battery using the same'2016 9,315,390'Production process for lithium-silicate-based compound'2016 9,269,954'Production process for lithium-silicate-system compound'2016 9,131,592'Mobile X-ray apparatus'2015 9,101,319'Mobile X-ray device and method for controlling mobile X-ray device'2015 9,082,525'Lithium silicate-based compound and production process for the same, positive-electrode active material and positive electrode for use in lithium-ion secondary battery as well as secondary battery'2015 8,728,663'Positive electrode for lithium-ion secondary battery and lithium-ion secondary battery comprising that positive electrode'2014 8,593,701'Optical scanning device and image forming apparatus'2013 D0690011'Mobile X-ray apparatus'2013 D0690012'Mobile X-ray apparatus'2013 D0689613'Mobile X-ray apparatus'2013 8,232,711'Surface emission type electron source and drawing device'2012 8,078,921'System including a plurality of data storage devices connected via network and data storage device used therefor'2011 7,874,428'Structure for air-packing device'2011 7,754,514'Method of making a light emitting element'2010 7,657,794'Data storage device and error recovery method'2010 7,569,635'Polyphenylene sulfide resin compositions'2009 7,532,227'Optical scanner and image forming apparatus'2009 7,525,561'Optical scanner and image forming apparatus'2009 7,486,458'Magnetic disk drive with diagnosis of error-correcting retries'2009 7,457,069'Magnetic disk drive with flying height control, control method, and manufacturing method'2008 7,445,117'Structure of air-packing device'2008 7,369,339'Failure prediction method for magnetic disk devices, and a magnetic disk device using the same'2008 D0557302'Video camera with digital video disc player'2007 7,295,396'Magnetic disk drive'2007 7,280,151'Video camera with a rotatable grip unit'2007 D0552143'Video camera with digital video disc player'2007 D0549260'Video camera with digital video disc player'2007 7,084,421'Light-emitting device using group III nitride group compound semiconductor'2006 D0517107'Video camera with digital video disk player'2006 D0515123'Video camera with digital video disk player'2006 6,964,705'Method for producing semiconductor crystal'2005 6,943,973'Management method for reproduction error and a disk drive making use of the management method'2005 6,933,959'Optical scanning device and image forming apparatus'2005 6,918,054'Storage apparatus and control method thereof'2005 D0505438'Video camera with digital video disc player'2005 D0504689'Disc cartridge'2005 6,830,948'Method for producing group III nitride compound semiconductor and group III nitride compound semiconductor device'2004 D0491967'Video camera with digital video disc player'2004 6,680,957'Group III nitride compound semiconductor laser'2004 6,656,579'Concrete products for promotion of afforestation'2003 6,625,755'Storage apparatus and control method thereof'2003 D0467601'Video camera with digital video disc player'2002 D0460428'Digital video disc player'2002 D0459709'Digital video disc player'2002 D0459321'Digital video disc player'2002 6,400,523'Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset cores'2002 6,376,837'Optical scanning apparatus and image forming apparatus having defective light source detection'2002 6,317,281'Disk storage device having identification information for protecting stored data'2001 6,282,688'Recording apparatus'2001 6,255,220'Method and apparatus for plasma control'2001 6,236,528'Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset cores'2001 6,108,158'Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset cores'2000 5,945,008'Method and apparatus for plasma control'1999 5,882,692'Resin molding apparatus'1999 5,875,460'Disk array subsystem and data generation method therefor'1999 5,815,468'Dual player automotive audio system capable of playing back two different types of recording mediums'1998 5,765,183'Disk array subsystem and data generation method therefor'1998 5,742,933'Rotary memory storage device with cache control method and apparatus'1998 5,723,900'Resin mold type semiconductor device'1998 5,715,105'Method of and apparatus for recording on and reproducing from disk-type recording medium having recording tracks with sectors each having an ID area and a data area'1998 5,665,531'Method of gelation of photographic emulsions, oil in water emulsions, or gelatin solutions and unit therefor'1997 5,650,177'Resin molding apparatus'1997 5,638,386'Recording apparatus'1997 5,584,012'Cache control method and rotary storage device having cache control'1996 5,507,005'Data transferring system between host and I/O using a main buffer with sub-buffers where quantity of data in sub-buffers determine access requests'1996 D0367946'Electric shaver'1996 5,431,769'Method and system for plasma treatment'1995 5,349,238'Semiconductor device'1994 5,313,340'Read/write controlling apparatus for adjusting the data length of a magnetic disk'1994 5,289,033'Packaging of semiconductor chips with resin'1994 D0338293'Electric vacuum cleaner'1993 5,221,428'Production of lead frame'1993 5,214,846'Packaging of semiconductor chips'1993 5,213,772'Apparatus for forming silver halide grains'1993 5,166,015'Photographic photosensitive solution manufacturing method and apparatus'1992 5,145,768'Process of forming silver halide grains'1992 5,116,736'Method for the quantitative determination of micro-organisms or pyrogens'1992 5,105,318'Head positioning device for use in magnetic disk equipment'1992 5,035,991'Control process and apparatus for the formation of silver halide grains'1991 4,976,404'Flow control valve'1990 4,954,607'Ferromagnetic organic substance having triaryl methane structure and process for manufacturing the same'1990 4,869,928'Inner surface coating method and device for piping'1989 4,866,157'Thermosetting aromatic resin composition'1989 4,691,963'Tandem seat for a two-wheeled vehicle'1987 4,547,423'Textile for clothes'1985 4,539,139'Process for the preparation of oil-in-water emulsions'1985 4,412,160'DC Motor driving apparatus'1983 4,383,241'Voice warning system for vehicles'1983 4,067,100'Method of making a semiconductor device'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–2016Patents assigned to KOJIMA AKIRA (14)· patent assignee history

1985–2001Patents assigned to SONY CORP (11)· patent assignee history

1985–1997Patents assigned to FUJI PHOTO FILM CO LTD (7)· patent assignee history

1985–2013Based in Kanagawa, JP· patent location history

1992–2020Patents assigned to HITACHI LTD (29)· patent assignee history

1992–2007Based in Odawara, JP· patent location history

1998–2021Based in Tokyo, JP· patent location history

2002–2007Based in Kunitachi, JP· patent location history

2014–2017Patents assigned to TOYOTA JIDOSHOKKI KK (8)· patent assignee history

2014–2017Based in Kariya, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	29	1992–2020
KOJIMA AKIRAself	14	1978–2016
SONY CORP	11	1985–2001
TOYOTA JIDOSHOKKI KK	8	2014–2017
FUJI PHOTO FILM CO LTD	7	1985–1997

Locations

Location	Patents	Span
Kanagawa, JP	19	1985–2013
Odawara, JP	18	1992–2007
Tokyo, JP	15	1998–2021
Kunitachi, JP	12	2002–2007
Kariya, JP	8	2014–2017