Inventor
Takanobu Osaka
Inventor
Kanagawa, JP
Overview
Patents· 26 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 them28%
H04NPictorial communication, e.g. television19%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein9%
G09GArrangements or circuits for control of indicating devices using static means to present variable information9%
F21VFunctional features or details of lighting devices or systems thereof2%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices2%
PatentTitleYear
10,606,042Magnification optical system202010,451,961Focus adjustment system for an image display device201910,310,238Magnification optical system201910,088,620Light guide, virtual image optical system, and virtual image display device20189,857,672'Light source unit, lighting apparatus and image projection apparatus'20189,841,584'Magnification optical system'20179,784,952'Magnification optical system'20179,354,498'Light source unit, lighting apparatus and image projection apparatus'20169,348,121'Magnification optical system'20169,158,119'Enlargement optical system'20159,069,238'Image displaying apparatus'20159,046,674'Magnification optical system'20159,039,196'Image displaying apparatus having plane mirror at conjugate to image displaying element'20158,922,883'Magnification optical system'20148,901,472'Image displaying apparatus including a projection optical system and a reflective image display element with plural micro-mirrors'20148,162,485'Intermediate image formation optical system, image formation device, and methods thereof'20127,929,071'Electric field generating device comprising an electric field generating resistor and line electrodes, light deflecting device having the same, and image display apparatus having the same'20117,857,458'Image display device and image projection device'20107,753,531'Image display apparatus and projection optical system'20107,564,508'Light path shift device and image display device'20097,561,336'Micro-optical device, spatial optical modulator and projector utilizing the micro-optical device'20097,495,831'Optical device, display device, and three-dimension image display device for changing a polarization state of a light beam in time'20097,489,383'Optical axis deflecting method, optical axis deflecting element, optical path deflecting unit, method of driving optical axis deflecting element, and image display apparatus'20097,336,411'Spatial light modulator and display device'20087,322,700'Image display apparatus'20087,125,121'Image display apparatus'2006Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2006–2010Patents assigned to RICOH KK (8)· patent assignee history
2006–2018Based in Kanagawa, JP· patent location history
2010–2020Patents assigned to RICOH CO LTD (17)· patent assignee history
2010–2020Based in Yokohama, JP· patent location history
2012–2019Patents assigned to OSAKA TAKANOBU (12)· patent assignee history
2014–2019Patents assigned to SHIBAYAMA YASUYUKI (8)· patent assignee history
2014–2019Patents assigned to HIRAKAWA MAKOTO (7)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH CO LTD | 17 | 2010–2020 |
| OSAKA TAKANOBUself | 12 | 2012–2019 |
| RICOH KK | 8 | 2006–2010 |
| SHIBAYAMA YASUYUKI | 8 | 2014–2019 |
| HIRAKAWA MAKOTO | 7 | 2014–2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 17 | 2006–2018 |
| Yokohama, JP | 9 | 2010–2020 |