Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4652931 | Optical system for TTL automatic focusing video camera | Sadao Okudaira, Shinji Urata | 1987-03-24 |
| 4518238 | Rotation control mechanism for diaphragm-operating ring in interchangeable objective for photographic camera | — | 1985-05-21 |
| 4506959 | Zoom lens assembly with switching mechanism from or to zooming photographing to or from macro photographing | — | 1985-03-26 |
| 4487482 | Stop down structure for facsimile zoom lens | Takayuki Itoh | 1984-12-11 |
| 4473278 | Aperture structure in zoom lens | — | 1984-09-25 |
| 4473281 | Compensating mechanism for zoom lens | — | 1984-09-25 |
| 4417281 | Image magnification control mechanism for facsimile zoom lens | — | 1983-11-22 |