Inventor
Daisuke Imafuku
Inventor
Fujisawa, JP
Overview
Patents· 16 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 them58%
G02BOptical elements, systems or apparatus27%
H04NPictorial communication, e.g. television12%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein4%
PatentTitleYear
7,697,202'Screen, fresnel lens sheet used for the same, and image display apparatus using the same'20107,675,679'Image display device and Fresnel lens sheet used therefor'20107,589,904'Projection type image display device'20097,581,838'Optical projector and image display apparatus using the same'20097,551,352'Image display apparatus, as well as, Fresnel lens sheet and screen to be used therein'20097,529,023'Image display, Fresnel lens and screen'20097,460,301'Image display apparatus, and transmissive screen and reflecting mirror used for same'20087,440,186'Screen, a fresnel lens sheet used for the screen, and an image display apparatus using the screen'20087,436,593'Screen, fresnel lens sheet used therefor, and image display apparatus using the same'20087,433,121'Projection type image display apparatus'20087,403,335'Screen, Fresnel lens sheet used for the same, and image display apparatus using the same'20087,362,503'Screen, Fresnel lens sheet used for the same, and image display apparatus using the same'20087,261,421'Optical projector and image display apparatus using the same'20077,245,429'Image display device, rear projection type screen used in image display device, Fresnel lens sheet, and method of making Fresnel lens sheet'20077,095,558'Image display device, rear projection type screen used in image display device, Fresnel lens sheet, and method of making Fresnel lens sheet'20066,768,594'Projection lens apparatus and rear projection type image display apparatus using the same'2004Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2004–2010Patents assigned to HITACHI LTD (16)· patent assignee history
2004–2010Based in Fujisawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 16 | 2004–2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| Fujisawa, JP | 16 | 2004–2010 |