Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4318585 | Optical system with an afocal focusing group | — | 1982-03-09 |
| 4283124 | Eye fundus camera | — | 1981-08-11 |
| 4279478 | Eye examining instrument | — | 1981-07-21 |
| 4265518 | Variable magnification apparatus having illumination compensating ability | — | 1981-05-05 |
| 4257688 | Eye examining instrument | — | 1981-03-24 |
| 4253743 | Eye testing instrument | — | 1981-03-03 |
| 4251139 | Eye examining instrument | — | 1981-02-17 |
| 4236182 | Automatic pre-programming system for TV receivers | Nobuo Minoura, Yasukazu Yoshinaga, Takao Abumi, Kazuhiro Nakai | 1980-11-25 |
| 4205347 | Television signal determination in an automatic tuning system | Nobuo Minoura, Yasukazu Yoshinaga, Takao Abumi, Kazuhiro Nakai | 1980-05-27 |
| 4198144 | Eye fundus camera | Yoshimi Kohayakawa | 1980-04-15 |
| 4196979 | Method and device for detecting distance between eye-examining instrument and eye | Yoshimi Kohayakawa | 1980-04-08 |