Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5460766 | Process of making substrate for an optical recording medium | Hirofumi Kamitakahara, Naoki Kushida, Hitoshi Yoshino, Osamu Kanome, Tetsuya Sato +1 more | 1995-10-24 |
| 5432770 | Optical recording medium, method of reproducing recorded data of optical recording medium, and system for reproducing recorded data of optical recording medium | Masataka Yashima, Hiroyuki Sugata | 1995-07-11 |
| 5308235 | Roll stamper and apparatus for forming a substrate for information recording medium | Hirofumi Kamitakahara, Naoki Kushida, Hitoshi Yoshino, Osamu Kanome, Tetsuya Sato +1 more | 1994-05-03 |
| 5148302 | Optical modulation element having two-dimensional phase type diffraction grating | Akihiko Nagano, Etsuro Kishi, Ryoji Fujiwara, Michiyo Nishimura, Hajime Sakata +2 more | 1992-09-15 |
| 5137661 | Process for producing optical recording medium | Osamu Kanome, Hiroyuki Sugata, Tetsuya Satoh, Tsuyoshi Santoh | 1992-08-11 |
| 4878742 | Liquid crystal optical modulator | Yasuyuki Watanabe, Chiori Mochizuki, Takayuki Ishii, Masato Yamanobe, Kazuya Ishiwata | 1989-11-07 |
| 4856869 | Display element and observation apparatus having the same | Hajime Sakata, Yasuyuki Watanabe, Masato Yamanobe, Akihiro Nagano | 1989-08-15 |
| 4850681 | Optical modulation device | Masao Yamanobe, Yasuyuki Watanabe, Hajime Sakata, Tomoyuki Umezawa, Chiori Mochizuki +5 more | 1989-07-25 |
| 4822146 | Optical modulation element | Masato Yamanobe, Yasuyuki Watanabe | 1989-04-18 |
| 4714636 | Liquid crystal device for color display | Koujiro Yokono, Masaru Kamio | 1987-12-22 |
| 4671642 | Image forming apparatus | Shuzo Kaneko, Junichiro Kanbe | 1987-06-09 |
| 4448867 | Image forming method and device for same | Yoshiyuki Osada, Masao Sugata, Takashi Nakagiri | 1984-05-15 |