Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7755851 | Subminiature imaging optical system | Cheon Ho Park, Phil Ho JUNG, Jae Cheol Jeong | 2010-07-13 |
| 4730906 | Bright wide-angle zoom lens | — | 1988-03-15 |
| 4702568 | Photographic lens with large aperture ratio | — | 1987-10-27 |
| 4652931 | Optical system for TTL automatic focusing video camera | Yoshihiro Hama, Shinji Urata | 1987-03-24 |
| 4589750 | Adapter for connecting single-lens reflex camera lens to video camera | Yasumasa Tomori, Harumi Aoki, Fumio Urano, Tahei Morisawa | 1986-05-20 |
| 4556295 | Ultracompact telephoto lens | — | 1985-12-03 |
| 4523814 | Zoom lens | — | 1985-06-18 |
| 4491395 | Zoom lens system | — | 1985-01-01 |
| 4490017 | High-speed zoom lens | Shigetada Sato | 1984-12-25 |
| 4460251 | Zoom lens focusing system | — | 1984-07-17 |
| 4412725 | Rear stop diaphragm zoom lens | Satoru Tachihara | 1983-11-01 |
| 4406523 | Compact wide-angle zoom lens | Sigetada Sato | 1983-09-27 |
| 4359270 | Zoom lens | — | 1982-11-16 |
| 4330181 | Compact zoom lens | — | 1982-05-18 |
| 4293197 | Telephoto lens with small telephoto ratio | Koichi Kobayashi | 1981-10-06 |
| 4251132 | Compact standard zoom lens | — | 1981-02-17 |
| 4241981 | Compact wide angle zoom lens | — | 1980-12-30 |
| 4240700 | Wide angle zoom lens having a high variation ratio | Ryota Ogawa, Satoru Tachihara | 1980-12-23 |
| 4185893 | Zoom lenses | Ryota Ogawa, Takayuki Itoh, Satoru Tachihara | 1980-01-29 |