Issued Patents All Time
Showing 26–50 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842386 | Variable focal length objective | Hiroki Nakayama, Shigeyuki Suda, Jun Hattori, Akihisa Horiuchi | 1989-06-27 |
| 4842395 | Finder of variable magnification | Yasuhisa Sato, Yasuyuki Yamada, Hiroki Nakayama, Kouji Oizumi | 1989-06-27 |
| 4830477 | Zoom lens capable of obtaining focal lengths beyond a variable focal length range | Sadatoshi Takahashi, Keiji Ikemori, Tsunefumi Tanaka, Takashi Matsushita, Kikuo Momiyama | 1989-05-16 |
| 4810070 | Lens system having a good image performance for white light | Shigeyuki Suda, Jun Hattori, Hiroki Nakayama, Akihisa Horiuchi | 1989-03-07 |
| 4781446 | Zoom lens having a capability of introducing special features into image formats | Tsunefumi Tanaka, Takashi Matsushita, Sadatoshi Takahashi, Keiji Ikemori | 1988-11-01 |
| 4776679 | Objective of variable focal length | Hiroki Nakayama, Shigeyuki Suda, Jun Hattori, Akihisa Horiuchi | 1988-10-11 |
| 4752121 | Zoom lens | — | 1988-06-21 |
| 4711534 | Zoom lens able to obtain focal lengths beyond the zooming range | Takashi Matsushita, Sadatoshi Takahashi, Keiji Ikemori, Tsunefumi Tanaka, Kikuo Momiyama | 1987-12-08 |
| 4695133 | High range zoom lens | Sadatoshi Takahashi, Keiji Ikemori, Kikuo Momiyama, Tsunefumi Tanaka | 1987-09-22 |
| 4666257 | Compact zoom lens | Tsunefumi Tanaka, Keiji Ikemori, Sadatoshi Takahashi, Kikuo Momiyama | 1987-05-19 |
| 4659189 | Zoom lens of reduced total length | — | 1987-04-21 |
| 4650988 | Image reading apparatus with an area-type beam splitter | Takashi Suzuki, Susumu Matsumura | 1987-03-17 |
| 4639096 | High range zoom lens | Kikuo Momiyama, Keiji Ikemori, Sadatoshi Takahashi, Tsunefumi Tanaka | 1987-01-27 |
| 4629294 | Zoom lens | Tsunefumi Tanaka, Sadatoshi Takahashi, Keiji Ikemori, Kikuo Momiyama | 1986-12-16 |
| 4615603 | Single lens reflex camera | Susumu Itoh, Sayoko Amano | 1986-10-07 |
| 4586786 | Area beam type splitter | Takashi Suzuki, Susumu Matsumura | 1986-05-06 |
| 4571033 | Zoom lens | Masatake Kato, Jun Hattori | 1986-02-18 |
| 4547663 | Focus detecting apparatus with a compensation mask | Shin Yamaguchi, Shinji Sakai, Takao Kinoshita, Takashi Kawabata, Nobuhiko Shinoda +1 more | 1985-10-15 |
| 4536073 | Apparatus for detecting a condition of sharpest focus | Kenji Suzuki, Shinji Sakai | 1985-08-20 |
| 4508433 | Telephoto objective | Sadahiko Tsuji | 1985-04-02 |
| 4500188 | Focusing device for a camera | Akira Tajima | 1985-02-19 |
| 4467188 | Device for splitting light from an objective lens | Takashi Suzuki, Susumu Matsumura | 1984-08-21 |
| 4420226 | Zoom lens of short total length | — | 1983-12-13 |
| 4367463 | Information mark display device | Takashi Suzuki | 1983-01-04 |
| 4348084 | Tele-photographic lens of large aperture ratio | Kazuo Fujibayashi | 1982-09-07 |