Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5461220 | Method of inhibiting information recording on specific region of recording medium or information reproduction therefrom and information processing system therefor | — | 1995-10-24 |
| 5450503 | Image recognition method | Mitsutoshi Ohwada, Minoru Yoshii, Yukichi Niwa | 1995-09-12 |
| 5235580 | Optical information recording-reproducing apparatus provided with a plurality of sample hold circuits | — | 1993-08-10 |
| 5121438 | Apparatus for inspecting articles | Yasunobu Kawauchi, Shozo Ogata | 1992-06-09 |
| 4788596 | Image stabilizing device | Eigo Kawakami, Yukichi Niwa, Mitsutoshi Ohwada, Minoru Yoshii, Shigeyuki Suda | 1988-11-29 |
| 4780739 | Anti-vibration imaging device | Eigo Kawakami, Yukichi Niwa, Minoru Yoshii, Shigeyuki Suda, Mitsutoshi Ohwada | 1988-10-25 |
| 4740942 | Record confirmation apparatus | Yasuaki Imai | 1988-04-26 |
| 4667316 | Information recording-reproducing apparatus | Shigeyuki Suda, Yukichi Niwa, Eigo Kawakami, Mitsutoshi Ohwada | 1987-05-19 |
| 4611315 | Optical disk apparatus and track access method therefor | — | 1986-09-09 |
| 4595271 | In-focus state detection device | Shigeyuki Suda, Yukichi Niwa, Mitsutoshi Ohwada | 1986-06-17 |
| 4455065 | Optical device | Yukichi Niwa, Mitsutoshi Ohwada, Kazuo Tanaka, Noboru Koumura | 1984-06-19 |
| 4443078 | Distance detecting device in a camera | Yukichi Niwa, Mitsutoshi Ohwada, Kazuo Tanaka, Noboru Koumura | 1984-04-17 |
| 4384199 | Incident position detector for radiation beam | Yukichi Niwa, Mitsutoshi Ohwada, Kazuo Tanaka, Noboru Koumura | 1983-05-17 |
| 4315201 | Alignment apparatus for mask and wafer used in manufacturing semiconductor circuit elements | Akiyoshi Suzuki, Ryozo Hiraga, Ichiro Kano, Hideki Yoshinari, Masao Totsuka +1 more | 1982-02-09 |
| 4278893 | Alignment apparatus | Yuzo Kato, Ryozo Hiraga, Hideki Yoshinari, Masao Tozuka, Ichiro Kano +1 more | 1981-07-14 |
| 4275306 | Alignment apparatus | Yuzo Kato, Ryozo Hiraga, Hideki Yoshinari, Masao Tozuka, Ichiro Kano | 1981-06-23 |
| 4262208 | Photo-electrical detecting apparatus | Akiyoshi Suzki, Ichiro Kano, Hideki Yoshinari, Masao Tozuka, Ryozo Hiraga +1 more | 1981-04-14 |
| 4202627 | Photoelectric detecting apparatus | Akiyoshi Suzki, Ichiro Kano, Hideki Yoshinari, Masao Tozuka, Ryozo Hiraga +1 more | 1980-05-13 |