Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696852 | Image signal processing apparatus | Masaaki Kanashiki | 1997-12-09 |
| 5690772 | Method for mass-producing eccentric Fresnel lens sheets | Hideaki Mitsutake, Katsumi Kurematsu, Haruyuki Yanagi | 1997-11-25 |
| 5631750 | Scattering type liquid crystal device | Hidetoshi Suzuki, Katsumi Kurematsu, Kazuo Yoshinaga, Hideaki Mitsutake | 1997-05-20 |
| 5540858 | Display method and apparatus using chiral smectic liquid crystal | Kazuo Yoshinaga, Hidetoshi Suzuki, Katsumi Kurematsu, Yomishi Toshida, Toshikazu Ohnishi +3 more | 1996-07-30 |
| 5483299 | Image displaying apparatus with image displaying function | — | 1996-01-09 |
| 5461500 | Polarization converting apparatus and optical instrument having the same | Sadahiko Tsuji, Hidetoshi Suzuki, Hideaki Mitsutake, Katsumi Kurematsu, Noritaka Mochizuki +3 more | 1995-10-24 |
| 5446510 | Image display apparatus | Hideaki Mitsutake, Kazumi Kimura, Katsumi Kurematsu | 1995-08-29 |
| 5390050 | Eccentric Fresnel lens sheet and method of making same | Haruyuki Yanagi, Katsumi Kurematsu, Hideaki Mitsutake | 1995-02-14 |
| 5387953 | Polarization illumination device and projector having the same | Kazumi Kimura | 1995-02-07 |
| 5372745 | Liquid crystal device, display apparatus using same and display method using same | Kazuo Yoshinaga, Hidetoshi Suzuki, Katsumi Kurematsu, Yomishi Toshida, Toshikazu Ohnishi +3 more | 1994-12-13 |
| 5337092 | Image display apparatus | — | 1994-08-09 |
| 5333021 | Projector provided with a plurality of image generators | Hideaki Mitsutake, Hidetoshi Suzuki, Katsumi Kurematsu, Kazuo Yoshinaga | 1994-07-26 |
| 5276523 | Liquid crystal television projector with automatic focus | Katsumi Kurematsu | 1994-01-04 |
| 5267029 | Image projector | Katsumi Kurematsu, Shigeru Oshima | 1993-11-30 |
| 5237435 | Multicolor projector employing diffraction grating type liquid crystal light modulators | Katsumi Kurematsu, Shigeru Oshima | 1993-08-17 |
| 5210610 | Image signal correction processing apparatus | Masaaki Kanashiki | 1993-05-11 |
| 5208620 | Display apparatus | Hideaki Mitsutake, Katsumi Kurematsu, Haruyuki Yanagi | 1993-05-04 |
| 5191472 | Apparatus having a screen with light blocking elements | Katsumi Kurematsu, Haruyuki Yanagi, Hideaki Mitsutake | 1993-03-02 |
| 5170194 | Reflection type liquid crystal valve and projector having the same | Katsumi Kurematsu, Haruyuki Yanagi, Masaaki Kanashiki | 1992-12-08 |
| 5153752 | Projector | Katsumi Kurematsu, Hideaki Mitsutake, Haruyuki Yanagi, Masaaki Kanashiki | 1992-10-06 |
| 5146365 | Screen and image display apparatus which minimizes the effects of re-reflected incident light | Haruyuki Yanagi, Hideaki Mitsutake, Katsumi Kurematsu | 1992-09-08 |
| 5100222 | Screen and image display apparatus | Katsumi Kurematsu, Haruyuki Yanagi, Hideaki Mitsutake | 1992-03-31 |
| 5101279 | Liquid crystal display apparatus having lenticular elements oriented in relation to LC pixel aperture dimensions | Katsumi Kurematsu | 1992-03-31 |
| 4991121 | Image display system | Satoshi Iwamatsu, Katsuo Nakadai | 1991-02-05 |
| 4897590 | Track access apparatus in a magnetic recording/playback system | Katsuo Nakadai, Toshikatsu Harase, Satoshi Iwamatsu | 1990-01-30 |