Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5838404 | Display device with optical member having two parts in overlay relation to reflect light incident at particular angle | Masao Ozeki, Yoshinori Hirai | 1998-11-17 |
| 5798805 | Projection type display apparatus | Tsuneo Wakabayashi | 1998-08-25 |
| 5754260 | Projection type color liquid crystal optical apparatus | Tsuneo Wakabayashi, Shigeyuki Serizawa, Yoshiyuki Sonda, Masaya Kunigita, Yoshinori Hirai | 1998-05-19 |
| 5659409 | Light source apparatus using a cone-like material and an applied apparatus thereof | Tsuneo Wakabayashi, Shigeyuki Serizawa, Yoshiyuki Sonda | 1997-08-19 |
| 5648860 | Projection type color liquid crystal optical apparatus | Tsuneo Wakabayashi, Shigeyuki Serizawa, Yoshiyuki Sonda, Masaya Kunigita, Yoshinori Hirai | 1997-07-15 |
| 5587816 | LCD device including an illumination device having a polarized light separating sheet between a light guide and the display | Tomoki Gunjima, Masao Ozeki, Hiroaki Ito, Hiroshi Hasebe, Tetsuro Matsumoto +1 more | 1996-12-24 |
| 5283675 | Liquid crystal display element with electrode having concave-convex surface at liquid crystal side | Yoshinori Hirai, Satoshi Niiyama, Tsuneo Wakabayashi | 1994-02-01 |
| 5274480 | Projection type display apparatus having an aperture stop means including non-circular openings | Yoshinori Hirai, Tomoki Gunjima | 1993-12-28 |
| 5245449 | Polymer dispersed liquid crystal color projection display apparatus | Tomoki Gunjima | 1993-09-14 |
| 5216531 | Projection type active matrix polymer dispersed liquid crystal display apparatus with particles of liquid crystal material randomly oriented | Yoshinori Hirai, Tomoki Gunjima, Satoshi Niiyama | 1993-06-01 |
| 5208696 | Spatial light modulating device with CRT input image | Yuji Kobayashi, Tsutomu Hara | 1993-05-04 |
| 5206746 | Transparent-scattering type optical device including a prism with a triangular longitudinal cross section | Tomoki Gunjima, Yoshinori Hirai | 1993-04-27 |
| 4968881 | Voltage detector using electro-optic material having anti-reflective coatings | Hironori Takahashi, Shinichiro Aoshima, Mutsuji Takahashi, Yutaka Tsuchiya | 1990-11-06 |
| 4923287 | Spatial light modulating devices utilizing electro-optic crystal | Tsutomu Hara | 1990-05-08 |
| 4794033 | Optical joint comprising antireflection films | — | 1988-12-27 |
| 4763996 | Spatial light modulator | Tsutomu Hara, Kazunori Shinoda, Koji Ichie | 1988-08-16 |
| 4717893 | Spatial light modulator | — | 1988-01-05 |