Inventor
Futoshi Yamasaki
Inventor
Yokohama, JP
Overview
Patents· 21 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Nprimary
H04NPictorial communication, e.g. television36%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them29%
G02BOptical elements, systems or apparatus19%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein12%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
PatentTitleYear
7,806,566'Light source unit and projection type video display apparatus using the same'20107,410,264'Image display apparatus forming optical image by irradiating light from light source onto image display element'20087,232,227'Image display device'20077,220,005'Projection type video display apparatus'20077,207,680'Projection display'20077,152,978'Liquid crystal projector, and projection lens unit, optical unit and cooling system for the same'20066,987,546'Projection type image display apparatus'20066,945,651'Optical unit and projection type projector apparatus using the same'20056,905,213'Projection apparatus and projection-type image display apparatus'20056,854,851'Projection display'20056,832,836'Optical unit and projection type projector apparatus using the same'20046,824,273'Liquid crystal projector, and projection lens unit, optical unit and cooling system for the same'20046,783,245'Liquid crystal projector, and projection lens unit, optical unit and cooling system for the same'20046,783,242'Projection apparatus and projection-type image display apparatus'2004RE038175'Liquid crystal display element and micro-lens arrangement and a display using the same'20036,351,295'Projection type liquid crystal display device'20026,307,601'Projection type liquid crystal display device'20016,290,360'Liquid crystal projector, and projection lens unit, optical unit and cooling system for the same'20015,684,548'Liquid crystal display element and micro-lens arrangement and a display using the same'19975,491,525'Illumination unit for liquid crystal projection display apparatus and liquid crystal display apparatus having it used'19965,455,694'Liquid crystal display with pixel shape same as image of light source through microlens'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–2010Patents assigned to HITACHI LTD (20)· patent assignee history
1995–2010Based in Yokohama, JP· patent location history
1996Based in Chigasaki, JP· patent location history
2001–2004Patents assigned to HITACHI VIDEO & INF SYST (2)· patent assignee history
2001–2002Based in Zushi, JP· patent location history
2004Patents assigned to HITACHI VIDEO INFORMATION SYST (1)· patent assignee history
2005Based in Tokyo, JP· patent location history
2006Patents assigned to HITACHI LTD AND HITACHI VIDEO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 20 | 1995–2010 |
| HITACHI VIDEO & INF SYST | 2 | 2001–2004 |
| HITACHI LTD AND HITACHI VIDEO | 1 | 2006 |
| HITACHI VIDEO INFORMATION SYST | 1 | 2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 17 | 1995–2010 |
| Zushi, JP | 2 | 2001–2002 |
| Tokyo, JP | 1 | 2005 |
| Chigasaki, JP | 1 | 1996 |