Issued Patents All Time
Showing 51–65 of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4789227 | Zoom lens | Keiji Ikemori, Masatake Kato, Kazuo Tanaka | 1988-12-06 |
| 4781446 | Zoom lens having a capability of introducing special features into image formats | Takashi Matsushita, Nozomu Kitagishi, Sadatoshi Takahashi, Keiji Ikemori | 1988-11-01 |
| 4776680 | High range zoom lens of reduced size | — | 1988-10-11 |
| 4749265 | Zoom lens | Jun Hattori | 1988-06-07 |
| 4716284 | Photographic optical system having enhanced spectral transmittance characteristics | — | 1987-12-29 |
| 4711534 | Zoom lens able to obtain focal lengths beyond the zooming range | Takashi Matsushita, Sadatoshi Takahashi, Keiji Ikemori, Nozomu Kitagishi, Kikuo Momiyama | 1987-12-08 |
| 4702567 | Zoom lens | Masatake Kato, Keiji Ikemori, Kazuo Tanaka | 1987-10-27 |
| 4695133 | High range zoom lens | Nozomu Kitagishi, Sadatoshi Takahashi, Keiji Ikemori, Kikuo Momiyama | 1987-09-22 |
| 4690513 | Wide angle high range zoom lens | Sadatoshi Takahashi | 1987-09-01 |
| 4687302 | Zoom lens | Keiji Ikemori, Masatake Kato | 1987-08-18 |
| 4666257 | Compact zoom lens | Keiji Ikemori, Nozomu Kitagishi, Sadatoshi Takahashi, Kikuo Momiyama | 1987-05-19 |
| 4639096 | High range zoom lens | Nozomu Kitagishi, Kikuo Momiyama, Keiji Ikemori, Sadatoshi Takahashi | 1987-01-27 |
| 4629294 | Zoom lens | Sadatoshi Takahashi, Nozomu Kitagishi, Keiji Ikemori, Kikuo Momiyama | 1986-12-16 |
| 4586793 | Zoom lens | Keiji Ikemori | 1986-05-06 |
| 4575198 | Lens system | — | 1986-03-11 |