Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5085977 | Focusing screen and a method of forming a microstructure array for use with a focusing screen | Saburo Sugawara, Toshiharu Takahashi, Moriyasu Shirayanagi | 1992-02-04 |
| 5081545 | Focusing screen | Saburo Sugawara, Toshiharu Takahashi, Moriyasu Shirayanagi | 1992-01-14 |
| 4949115 | Automatic focusing projector | Yasuyuki Tejima, Akihiro Arai, Saburo Sugawara, Shigeo Toji | 1990-08-14 |
| 4905034 | Automatic focusing projector | Yasuyuki Tejima, Akihiro Arai, Saburoh Sugawara, Shigeo Tohji | 1990-02-27 |
| 4870442 | Auxiliary light projecting apparatus for a focus detecting system | Yasuyuki Tejima, Saburo Sugawara | 1989-09-26 |
| 4771308 | Auxiliary light projecting apparatus for a focus detecting system | Yasuyuki Tejima, Saburo Sugawara | 1988-09-13 |
| 4600830 | Focus detecting device | Seijiro Tokutomi, Osamu Shindo | 1986-07-15 |
| 4580042 | Focusing position detecting device using a sector shaped mirror | Seijiro Tokutomi, Osamu Shindo | 1986-04-01 |