Issued Patents All Time
Showing 51–75 of 79 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5955142 | Process for production of recording medium containing alumina hydrate of a boehmite structure and image-forming method using the recording medium | Hitoshi Yoshino, Kyo Miura | 1999-09-21 |
| 5812227 | Liquid crystal device, display apparatus using same and display method using same | Yomishi Toshida, Kazuo Yoshinaga, Toshikazu Ohnishi, Koichi Sato, Tsuyoshi Shibata | 1998-09-22 |
| 5738932 | Recording medium, ink-jet recording method using the same and print obtained thereby, and dispersion and production process of the recording medium using the dispersion | Yuji Kondo, Kyo Miura, Hitoshi Yoshino, Hiroshi Tomioka | 1998-04-14 |
| 5707716 | Recording medium | Hitoshi Yoshino, Kyo Miura | 1998-01-13 |
| 5637253 | Chiral smectic liquid crystal compound, chain polymeric liquid crystal copolymer compound, their polymeric liquid crystal composition, a polymeric liquid crystal device which uses them, and apparatus and method which uses the same | Koichi Sato, Kazuo Yoshinaga, Yomishi Toshida | 1997-06-10 |
| 5614125 | Polymeric liquid-crystal compound, polymeric liquid-crystal composition, and polymeric liquid-crystal device | Koichi Sato, Kazuo Yoshinaga, Yomishi Toshida | 1997-03-25 |
| 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 |
| 5475515 | Liquid crystal device having a stretched porous polymer film impregnated with a low molecular weight mesomorphic compound | Kazuo Yoshinaga, Ryoji Fujiwara, Yomishi Toshida, Toshikazu Ohnishi, Koichi Sato +1 more | 1995-12-12 |
| 5473448 | Display device having a mesomorphic diffraction grating layer adjacent a polymer dispersed layer | Kazuo Yoshinaga, Hajime Sakata, Yomishi Toshida, Toshikazu Ohnishi, Koichi Sato +1 more | 1995-12-05 |
| 5447655 | Polymeric liquid crystal copolymer compound, composition, thererof, and polymeric liquid crystal device making use of these | Koichi Sato, Kazuo Yoshinaga, Yomishi Toshida | 1995-09-05 |
| 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 |
| 5341399 | Digital transmission test signal generating circuit | — | 1994-08-23 |
| 5272552 | Optical modulation device and method using modulation layer of helical polymer liquid crystal having a helical chiral smectic C phase | Kazuo Yoshinaga, Yutaka Kurabayashi, Kazuo Isaka, Shuzo Kaneko, Akihiro Mouri +2 more | 1993-12-21 |
| 5268783 | Liquid crystal device including a polymer having a surface energy of at most 25 dyn/cm, display apparatus using same and display method using same | Kazuo Yoshinaga, Yomishi Toshida, Toshikazu Ohnishi, Koichi Sato, Tsuyoshi Shibata | 1993-12-07 |
| 5258134 | Main chain-type chiral smectic polymer liquid crystal and polymer liquid crystal device | Kazuo Yoshinaga, Yutaka Kurabayashi, Koichi Sato, Yomishi Toshida | 1993-11-02 |
| 5140447 | Display medium having a colored polymer liquid crystal layer | Shuzo Kaneko, Kazuo Isaka, Akihiro Mouri, Kazuo Yoshinaga, Toshikazu Ohnishi +2 more | 1992-08-18 |
| 5115213 | Frequency equalizer | — | 1992-05-19 |
| 5070416 | Erasing previously recorded signal in apparatus for pulse train recording of digital signal | — | 1991-12-03 |
| 5059000 | Image forming medium and image forming apparatus using same | Shuzo Kaneko, Akihiro Mouri, Kazuo Isaka, Kazuo Yoshinaga, Toshikazu Ohnishi +2 more | 1991-10-22 |
| 5038220 | Method and apparatus for simultaneously recording two independent video signals | — | 1991-08-06 |
| 5038166 | Optical image recording apparatus | Kazuo Isaka, Shuzo Kaneko, Akihiro Mouri, Kazuo Yoshinaga, Toshikazu Ohnishi +2 more | 1991-08-06 |
| 4965591 | Recording with polymer liquid crystal recording medium | Yutaka Kurabayashi, Toshikazu Ohnishi, Kazuo Yoshinaga, Akihiro Mouri, Kazuo Isaka +2 more | 1990-10-23 |
| 4787094 | Apparatus for transmitting digital signal | — | 1988-11-22 |
| 4636873 | Method and apparatus for recording and reproducing an information signal with a larger tape wrapping angle | — | 1987-01-13 |
| 4549227 | Method and apparatus for recording a digital information signal in parallel tracks on a record medium without guard bands between at least some adjacent tracks | Yoshitaka Hashimoto | 1985-10-22 |