Issued Patents All Time
Showing 51–75 of 86 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5764318 | Liquid crystal display panel and projector utilizing the same | Katsumi Kurematsu | 1998-06-09 |
| 5760538 | Electron beam apparatus and image forming apparatus | Shinichi Kawate, Naoto Nakamura, Yoshihisa Sano | 1998-06-02 |
| 5749642 | Illuminating optical system and projector utilizing the same | Kazumi Kimura, Kohtaro Yano, Shigeru Kawasaki, Junko Kuramochi | 1998-05-12 |
| 5692819 | Illuminating device and projector utilizing the same | Kohtaro Yano, Shigeru Kawasaki, Kazumi Kimura, Junko Shingaki | 1997-12-02 |
| 5690772 | Method for mass-producing eccentric Fresnel lens sheets | Nobuo Minoura, Katsumi Kurematsu, Haruyuki Yanagi | 1997-11-25 |
| 5631750 | Scattering type liquid crystal device | Nobuo Minoura, Hidetoshi Suzuki, Katsumi Kurematsu, Kazuo Yoshinaga | 1997-05-20 |
| 5615025 | Optical modulation device having different pretilts in the compensation cell(s) | Shuzo Kaneko, Junko Shingaki | 1997-03-25 |
| 5602584 | Apparatus for producing a panoramic image using a plurality of optical systems | Jun Tokumitsu, Shigeyuki Suda, Tatsushi Katayama | 1997-02-11 |
| 5594296 | Electron source and electron beam apparatus | Naoto Nakamura, Yoshihisa Sano | 1997-01-14 |
| 5590942 | Polarizing conversion unit, illuminating device and projector using them | Kazumi Kimura, Shigeru Kawasaki | 1997-01-07 |
| 5568283 | Optical modulation device and display apparatus with three birefringent films each acting as a half waveplate | Kazuo Yoshinaga | 1996-10-22 |
| 5568287 | Liquid crystal device with optical means of high refractive index at pixels and low refractive index between pixels | Junko Shingaki, Shuzo Kaneko, Katsumi Kurematsu | 1996-10-22 |
| 5566367 | Plate-like polarizing element, a polarizing conversion unit provided with the element, and a projector provided with the unit | Noritaka Mochizuki, Shigeru Kawasaki, Kazumi Kimura, Junko Shingaki | 1996-10-15 |
| 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 |
| 5495351 | Liquid crystal device with two monostable liquid crystal cells | Junko Shingaki, Shuzo Kaneko, Katsumi Kurematsu | 1996-02-27 |
| 5461500 | Polarization converting apparatus and optical instrument having the same | Sadahiko Tsuji, Hidetoshi Suzuki, Katsumi Kurematsu, Noritaka Mochizuki, Nobuo Minoura +3 more | 1995-10-24 |
| 5446510 | Image display apparatus | Nobuo Minoura, Kazumi Kimura, Katsumi Kurematsu | 1995-08-29 |
| 5404234 | Projector using a hologram | Naosato Taniguchi | 1995-04-04 |
| 5392142 | Display apparatus with chiral smectic and polymer liquid crystal films, each having birefringent first state and not birefringent second state | Kazuo Yoshinaga | 1995-02-21 |
| 5390050 | Eccentric Fresnel lens sheet and method of making same | Haruyuki Yanagi, Nobuo Minoura, Katsumi Kurematsu | 1995-02-14 |
| 5387991 | Polarization converting device and polarized-light illuminating system using the device and image display unit using the device | Shigeru Kawasaki | 1995-02-07 |
| 5381278 | Polarization conversion unit, polarization illumination apparatus provided with the unit, and projector provided with the apparatus | Junko Shingaki, Kazumi Kimura | 1995-01-10 |
| 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 |
| 5371617 | Liquid crystal projector with one modulator including a member for preventing light from another modulator from entering the one | Katsumi Kurematsu | 1994-12-06 |
| 5333021 | Projector provided with a plurality of image generators | Hidetoshi Suzuki, Katsumi Kurematsu, Kazuo Yoshinaga, Nobuo Minoura | 1994-07-26 |