Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830477 | Zoom lens capable of obtaining focal lengths beyond a variable focal length range | Sadatoshi Takahashi, Keiji Ikemori, Nozomu Kitagishi, Tsunefumi Tanaka, Takashi Matsushita | 1989-05-16 |
| 4723142 | Focus detecting device | Kazuo Fujibayashi, Keiji Ohtaka | 1988-02-02 |
| 4717819 | Focus detecting device | Kazuo Fujibayashi, Keiji Ohtaka | 1988-01-05 |
| 4711534 | Zoom lens able to obtain focal lengths beyond the zooming range | Takashi Matsushita, Sadatoshi Takahashi, Keiji Ikemori, Nozomu Kitagishi, Tsunefumi Tanaka | 1987-12-08 |
| 4695133 | High range zoom lens | Nozomu Kitagishi, Sadatoshi Takahashi, Keiji Ikemori, Tsunefumi Tanaka | 1987-09-22 |
| 4666257 | Compact zoom lens | Tsunefumi Tanaka, Keiji Ikemori, Nozomu Kitagishi, Sadatoshi Takahashi | 1987-05-19 |
| 4664485 | Finder optical system for a camera | Hiromi Someya | 1987-05-12 |
| 4639096 | High range zoom lens | Nozomu Kitagishi, Keiji Ikemori, Sadatoshi Takahashi, Tsunefumi Tanaka | 1987-01-27 |
| 4629294 | Zoom lens | Tsunefumi Tanaka, Sadatoshi Takahashi, Nozomu Kitagishi, Keiji Ikemori | 1986-12-16 |
| 4571050 | Light measuring device for camera | — | 1986-02-18 |
| 4544256 | Single lens reflex camera with light measuring device | Kazuo Fujibayashi | 1985-10-01 |
| 4519685 | Finder for single lens reflex camera | Takashi Uchiyama, Ryoichi Suzuki, Hiroyasu Murakami, Masaharu Kawamura, Shinji Sakai | 1985-05-28 |
| 4509849 | Light measurement device for single lens reflex camera | — | 1985-04-09 |
| 4474448 | Focus detection device | — | 1984-10-02 |
| 4462025 | Indication device for camera | Hiroyasu Murakami, Takashi Uchiyama, Ryoichi Suzuki, Masaharu Kawamura, Shinji Sakai | 1984-07-24 |
| 4457612 | Liquid crystal display device for camera | Ryoichi Suzuki, Hiroyasu Murakami, Masaharu Kawamura, Shinji Sakai, Takashi Uchiyama | 1984-07-03 |
| 4452522 | Liquid crystal display device for camera | Hiroyasu Murakami, Takashi Uchiyama, Ryoichi Suzuki, Shinji Sakai, Masaharu Kawamura | 1984-06-05 |
| 4437735 | Inverted telephoto type wide angle objective of large relative aperture | — | 1984-03-20 |
| 4381888 | Retrofocus type large aperture wide angle objective | — | 1983-05-03 |
| 4381145 | Single lens reflex camera | Kenichi Kumazawa | 1983-04-26 |
| 4376575 | Single lens reflex cameras and viewfinder display switchover devices therefor | Hiromi Someya | 1983-03-15 |
| 4368956 | Compact photographic objective | Yasuyuki Yamada | 1983-01-18 |
| 4364643 | Large aperture ratio photographic lens | — | 1982-12-21 |
| 4338012 | Focusing screen | Susumu Matsumura, Takashi Suzuki, Kazuya Matsumoto | 1982-07-06 |
| 4330188 | Focusing screen | Kazuo Fujibayashi | 1982-05-18 |