Issued Patents All Time
Showing 76–86 of 86 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5345291 | Compact focus detecting device | Tsuyoshi Yaji | 1994-09-06 |
| 5321461 | Focus detecting device | — | 1994-06-14 |
| 5289226 | Focus detecting device including a diffusion surface disposed on a predetermined image surface | — | 1994-02-22 |
| 5245469 | Real image type finder optical system | — | 1993-09-14 |
| 5212375 | Camera focus detection system using holographic beam splitter | Tsutomu Uzawa, Yoshihiro Kawano, Hiroyuki Kurita, Hideaki Yoshida, Akira Hasegawa +1 more | 1993-05-18 |
| 5212514 | Camera having a focus detecting optical system | — | 1993-05-18 |
| 5148321 | Compact zoom lens system | Masaki Imaizumi, Shigeru Kato | 1992-09-15 |
| 4930881 | Image pickup optical system | Hiroshi Takase, Takashi Inoue, Hidenori Sakurai, Akiteru Kimura | 1990-06-05 |
| 4830077 | Heavy duty pneumatic tire having asymmetric tread | Osamu Inoue | 1989-05-16 |
| 4708443 | Zoom lens system | Yasuji Ogata | 1987-11-24 |
| 4708445 | Large aperture ratio photographic lens system | — | 1987-11-24 |