LexDanaLexDanabeta
Inventor

Hidefumi Sakata

Inventor
Tatsuno-machi, JP

Overview

41→
Patents
1995–2021
Patent span
Physics
Primary field (CPC G)

Patents· 41 as inventor

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

G03Bprimary
G03BApparatus or arrangements for taking photographs or for projecting or viewing them28%
H04NPictorial communication, e.g. television20%
G02BOptical elements, systems or apparatus18%
F21VFunctional features or details of lighting devices or systems thereof5%
H10HInorganic light-emitting semiconductor devices having potential barriers5%
H01LSemiconductor devices4%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted3%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein3%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light3%
F21KNon-electric light sources using luminescence2%
PatentTitleYear
11,101,415Light source apparatus and projector202111,079,666Light source device and projector202111,022,869Light source apparatus and projector202110,957,828Light source apparatus and projector202110,921,698Light source device, projector, and phosphor rod202110,845,691Light source device and projector202010,838,292Light source apparatus, illuminator, and projector202010,746,931Light source device and projector202010,203,590Illuminator and projector201910,061,105Projection system, projector, and conversion lens for projector20189,918,055'Polarization converting element, light source device, lighting device, and projector'20189,860,493'Illumination device and projector'20189,563,109'Light source device with wavelength conversion element and projector including the same'20179,423,680'Light source apparatus that irradiates a phosphor layer with excitation light and projector'20169,323,045'Illumination device and projector'20168,820,943'Projection apparatus and image display apparatus having a reflector and an optical system with a cut off portion'20148,678,596'Illumination device and projector with fluorescent plate'20148,506,128'Light source device, illumination system, and projector'20138,308,309'Lighting device and projector'20128,132,918'Illumination apparatus, projector, and polarization conversion element'20128,007,141'Diffraction optical element, lighting device, and projector'20117,972,009'Projector and projection unit'20117,946,708'Display device that projects a virtual image display'20117,809,209'Image display device, and control method for the same'20107,576,313'Light source device and image display device'20097,484,850'Illuminating device and projector'20097,360,900'Illuminating apparatus, image display apparatus, and projector'20087,325,932'Display device, lighting device and projector'20087,293,880'Light source including multiple light emitting devices driven by a control device, and projector'20077,287,860'Display device, display method, and projector'20077,270,427'Display device, lighting device and projector'20077,192,147'Lighting system and projector'20077,159,987'Display device, lighting device and projector'20077,088,347'Coordinate input device detecting touch on board associated with liquid crystal display, and electronic device therefor'20067,034,808'Touch panel and electronic device'20066,944,375'Optical element and illuminator and projection display device'20056,764,182'Light reflective polarizer and projector using the same'20046,644,832'Illumination device and manufacturing method therefor, display device, and electronic instrument'20036,592,224'Optical reflection polarizer and projector comprising the same'20035,673,241'Focus detection mechanism and optical head and optical storage device that use it'19975,436,876'Optical head and optical memory device'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2021Patents assigned to SEIKO EPSON CORP (41)· patent assignee history
1995–2004Based in Suwa, JP· patent location history
2003–2021Based in Tatsuno-machi, JP· patent location history
2006–2007Based in Nagano, JP· patent location history
2012–2014Patents assigned to SAKATA HIDEFUMI (5)· patent assignee history
2013–2014Patents assigned to MATSUBARA TAKAYUKI (2)· patent assignee history
2013Patents assigned to ARUGA SUSUMU (1)· patent assignee history
2014Patents assigned to KAMIJIMA SHUNJI (1)· patent assignee history
2020–2021Based in Kamiina-gun, JP· patent location history
2021Based in Tatsuno-shi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SEIKO EPSON CORP411995–2021
SAKATA HIDEFUMIself52012–2014
MATSUBARA TAKAYUKI22013–2014
ARUGA SUSUMU12013
KAMIJIMA SHUNJI12014
Locations
LocationPatentsSpan
Tatsuno-machi, JP292003–2021
Kamiina-gun, JP42020–2021
Suwa, JP41995–2004
Tatsuno-shi, JP22021
Nagano, JP22006–2007