Inventor
Atsushi Takaura
Inventor
Tokyo, JP
Overview
Patents· 33 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus31%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them30%
H04NPictorial communication, e.g. television21%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein6%
G09GArrangements or circuits for control of indicating devices using static means to present variable information4%
G03GElectrography3%
B41JTypewriters1%
G01BMeasuring length, thickness or similar linear dimensions1%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light1%
PatentTitleYear
RE048309Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus20209,983,531Moving-member detecting device and image forming apparatus20189,946,144Projection optical system and image projecting apparatus20189,228,825'Positional change measurement device, positional change measurement method, and image forming apparatus'2016RE045728'Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus'2015RE045258'Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus'20148,777,421'Projection optical system'20148,610,968'Document illuminating system and image reader including the same'20138,529,070'Projection optical apparatus'20138,416,471'Document illuminating system and image reader including the same'20138,162,485'Intermediate image formation optical system, image formation device, and methods thereof'20128,128,238'Projection optical system and image displaying apparatus'20128,025,415'Projection optical system and image projecting apparatus'20117,946,717'Projection optical system and image projecting apparatus'20117,938,545'Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus'20117,922,341'Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus'20117,911,704'Projection optical system and image display apparatus'20117,889,224'Optical path switching device, optical scanning device, and image forming apparatus'20117,857,458'Image display device and image projection device'20107,753,531'Image display apparatus and projection optical system'20107,646,536'Reflective screen and display system'20107,637,621'Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus'20097,637,618'Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus'20097,631,975'Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus'20097,564,508'Light path shift device and image display device'20097,561,336'Micro-optical device, spatial optical modulator and projector utilizing the micro-optical device'20097,529,032'Projection optical system and image display apparatus'20097,495,831'Optical device, display device, and three-dimension image display device for changing a polarization state of a light beam in time'20097,441,908'Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus'20087,336,411'Spatial light modulator and display device'20087,322,700'Image display apparatus'20087,125,121'Image display apparatus'20067,048,388'Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus'2006Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2006–2010Patents assigned to RICOH KK (14)· patent assignee history
2006–2020Based in Tokyo, JP· patent location history
2010–2020Patents assigned to RICOH CO LTD (19)· patent assignee history
2010–2016Based in Machida, JP· patent location history
2012–2018Patents assigned to TAKAURA ATSUSHI (10)· patent assignee history
2012–2018Patents assigned to FUJITA KAZUHIRO (6)· patent assignee history
2012–2018Patents assigned to ABE ISSEI (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH CO LTD | 19 | 2010–2020 |
| RICOH KK | 14 | 2006–2010 |
| TAKAURA ATSUSHIself | 10 | 2012–2018 |
| FUJITA KAZUHIRO | 6 | 2012–2018 |
| ABE ISSEI | 4 | 2012–2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 29 | 2006–2020 |
| Machida, JP | 4 | 2010–2016 |