LexDanaLexDanabeta
Inventor

Kenji Nagashima

Inventor
Osaka, JP

Overview

62→
Patents
1983–2020
Patent span
Physics
Primary field (CPC G)

Patents· 62 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 transducer22%
G02BOptical elements, systems or apparatus19%
H04NPictorial communication, e.g. television18%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them11%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light7%
G06FElectric digital data processing5%
G09GArrangements or circuits for control of indicating devices using static means to present variable information3%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles2%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h102%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%
PatentTitleYear
10,802,270Optical scanner comprising a calibrating unit to calibrate intensity of the drive signal applied to a mirror driving unit202010,686,292Laser module202010,151,575Position sensing device and position sensing method201810,051,247Image projection apparatus20189,903,987'Laser optical device and image projection device'20189,826,205'Display and portable projector'20179,791,711'Image display device'20179,781,352'Imaging apparatus, imaging method, and imaging operation control program'20179,686,518'Projector'20179,658,465'Projector and screen'20179,602,789'Display and portable projector'20179,354,501'Projector and screen'20169,335,617'Projector'20169,158,429'Rotary input device and electronic equipment'20159,104,092'Display and portable projector including a laser beam generation portion'20159,083,893'Projector capable of suppressing deterioration of irradiated projection while improving brightness'20159,075,246'Image display device having laser light scanning with a variation in scanning speed'20159,069,184'Display device, and portable apparatus having projector function'20158,988,774'Projector and projection screen'20158,797,362'Rotary input device and electronic equipment'20148,259,237'Image display apparatus and image display method'20128,197,066'Image display apparatus'20128,123,361'Dual-projection projector and method for projecting images on a plurality of planes'20128,123,367'Image display apparatus and method for displaying image using laser light emission control'20128,011,790'Image display apparatus having casings foldable relative to each other'20117,953,132'Laser driver circuit and laser display'20117,835,053'Projection image display apparatus'20107,784,706'Facility operating method and apparatus, facility operating system, managing method and apparatus, and facility'20107,774,114'In-vehicle equipment system'20107,755,014'Optical pickup device'20107,753,538'Fabrication method for variable-shape mirror using thermo-compression bonding'20107,724,632'Optical pickup device'20107,719,949'Optical head'20107,586,819'Optical pickup device'20097,552,011'Map display apparatus and map display method'20097,502,301'Diffraction grating for plural wavelengths, optical pickup apparatus and optical disk apparatus using diffraction grating for plural wavelengths'20097,496,438'In-vehicle equipment system'20097,452,089'Variable-shape mirror and optical pickup device therewith'20087,417,937'Optical pickup apparatus'20087,390,100'Variable-shape mirror and optical pickup device therewith'20087,379,406'Optical recording apparatus, and method for controlling laser power therein by filtering and then sampling a returned light signal'20087,303,296'Variable-shape mirror and optical pickup device therewith'20077,283,434'Optical pickup device capable of correcting spherical aberration'20077,145,844'Optical head with adjustable beam shaping element'20066,930,972'Optical information processor and optical element'20056,920,101'Optical information processor and optical element'20056,914,870'Optical head apparatus'20056,888,787'Optical information processor and optical element'20056,822,934'Optical disc apparatus for finding a tracking error for an optical disk'20046,819,647'Optical information processor and optical element'20046,819,642'Data recording device, data reproducing device, and optical disc'20046,757,227'Optical drive apparatus for use with different recording media, tracking control method for use therein, and optical disc'20046,674,709'Optical head apparatus'20046,618,343'Optical information processor and optical element'20036,496,453'Optical pickup'20026,304,526'Optical head'20016,229,772'Optical disc device and optical disc discriminating method'20016,021,102'Disc drive apparatus for more than one type of disc'20006,014,361'Beam expander to change an elliptical light beam emitted from a laser source to a circular light beam'20005,309,460'Semiconductor laser with encapsulated lead members'19945,144,614'Optical pickup device'19924,412,377'Method for manufacturing a hybrid integrated circuit device'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–2020Based in Tokyo, JP· patent location history
1992–2010Patents assigned to SONY CORP (10)· patent assignee history
2000–2005Based in Suita, JP· patent location history
2000–2017Based in Kanagawa, JP· patent location history
2001–2006Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (11)· patent assignee history
2007–2018Patents assigned to FUNAI ELECTRIC CO (33)· patent assignee history
2007–2018Based in Osaka, JP· patent location history
2007–2015Based in Daito, JP· patent location history
2012–2017Patents assigned to NAGASHIMA KENJI (13)· patent assignee history
2012–2017Patents assigned to CHIKAOKA ATSUHIKO (7)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUNAI ELECTRIC CO332007–2018
NAGASHIMA KENJIself132012–2017
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD112001–2006
SONY CORP101992–2010
CHIKAOKA ATSUHIKO72012–2017
Locations
LocationPatentsSpan
Osaka, JP202007–2018
Daito, JP102007–2015
Suita, JP102000–2005
Kanagawa, JP72000–2017
Tokyo, JP61983–2020