Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4794257 | Quantum-counting radiography | Sueki Baba, Osamu Yamamoto, Hiroshi Tsutsui | 1988-12-27 |
| 4651005 | Energy separated quantum-counting radiography | Sueki Baba, Osamu Yamamoto, Hiroshi Tsutsui | 1987-03-17 |
| 4433403 | Optical disc recording and retrieval system | Sueki Baba, Tomio Yoshida, Nobuo Akahira | 1984-02-21 |
| 4385303 | Optical recording and reproducing disc | Nobuo Akahira, Michiyoshi Nagashima, Shunji Harigae, Tomio Yoshida | 1983-05-24 |
| 4379621 | Image display device utilizing birefringence properties of ferroelectric ceramic material | Masaru Ikedo, Masafumi Watari, Yoshitake Yasuno | 1983-04-12 |
| 4330883 | System and method of optical information storage in a recording disc | Takeo Ohta, Nobuo Akahira, Tatsushi Nakamura | 1982-05-18 |
| 4322839 | Method and apparatus for recording and reproducing information on and from an optical disk | Takeo Ohta, Nobuo Akahira, Tatsushi Nakamura, Mutsuo Takenaga | 1982-03-30 |
| 4278734 | Optical information recording material and method of recording and reproducing information using same material | Takeo Ohta, Nobuo Akahira, Tatsushi Nakamura | 1981-07-14 |
| 4264193 | Image converting and projecting method and apparatus for carrying out the same | Hajimu Oonishi, Masaru Ikedo | 1981-04-28 |
| 4264551 | Recorded disk reproducing system | Hajimu Oonishi, Kenichi Nishiuchi | 1981-04-28 |
| 4248731 | Thermoluminescent material | Mutsuo Takenaga, Osamu Yamamoto | 1981-02-03 |