Issued Patents All Time
Showing 76–100 of 100 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5011272 | Compact zoom lens | Nozomu Kitagishi, Jun Hattori, Shigeyuki Suda, Akihisa Horiuchi | 1991-04-30 |
| 5002372 | Optical system for amphibious camera and a moving device using the same | Hideo Tamamura, Hiroshi Maeno | 1991-03-26 |
| 4974947 | Refractive index distribution type meniscus lens and optics | Nozomu Kitagishi | 1990-12-04 |
| 4941070 | Flash device for a camera | Yukio Ogawa, Kazuo Ikawa, Toru Shoji, Hideo Tamamura, Takashi Matsushita | 1990-07-10 |
| 4909614 | Variable magnification finder | Yoshinori Itoh | 1990-03-20 |
| 4907866 | Objective of variable focal length | Nozomu Kitagishi, Shigeyuki Suda, Jun Hattori, Akihisa Horiuchi | 1990-03-13 |
| 4871238 | Photographic optical device with variable magnification | Yasuhisa Sato, Yasuyuki Yamada, Kouji Oizumi | 1989-10-03 |
| 4842386 | Variable focal length objective | Nozomu Kitagishi, Shigeyuki Suda, Jun Hattori, Akihisa Horiuchi | 1989-06-27 |
| 4842395 | Finder of variable magnification | Yasuhisa Sato, Nozomu Kitagishi, Yasuyuki Yamada, Kouji Oizumi | 1989-06-27 |
| 4830474 | Variable magnification optical system | Yasuhisa Sato, Kouji Oizumi, Yasuyuki Yamada | 1989-05-16 |
| 4815830 | Small sized zoom lens | Yasuhisa Sato, Yasuyuki Yamada | 1989-03-28 |
| 4810070 | Lens system having a good image performance for white light | Shigeyuki Suda, Jun Hattori, Nozomu Kitagishi, Akihisa Horiuchi | 1989-03-07 |
| 4776679 | Objective of variable focal length | Nozomu Kitagishi, Shigeyuki Suda, Jun Hattori, Akihisa Horiuchi | 1988-10-11 |
| 4770508 | Conversion lens releasably attached behind master lens | Yasuyuki Yamada, Yasuhisa Sato, Kouji Oizumi | 1988-09-13 |
| 4757336 | View finder of variable magnification | Yasuhisa Sato, Kouji Oizumi, Yasuyuki Yamada | 1988-07-12 |
| 4751539 | Variable power finder | Yasuyuki Yamada, Yasuhisa Sato, Kouji Oizumi | 1988-06-14 |
| 4726668 | Zoom lens of short total length | Yasuhisa Sato, Kouji Oizumi, Yasuyuki Yamada | 1988-02-23 |
| 4702581 | Flash device for camera | Yasuyuki Yamada, Yasuhisa Sato, Kouji Oizumi | 1987-10-27 |
| 4697882 | Beam splitter for changing optical paths small tilt | Yasuhisa Sato, Yasuyuki Yamada, Kouji Oizumi | 1987-10-06 |
| 4695134 | Compact photographic lens | Yasuhisa Sato, Yasuyuki Yamada | 1987-09-22 |
| 4679913 | Vari-focal objective lens of short total length | Yasuhisa Sato, Yasuyuki Yamada, Kouji Oizumu | 1987-07-14 |
| 4659186 | Small size zoom lens | Yasuhisa Sato, Yasuyuki Yamada | 1987-04-21 |
| 4652091 | Compact zoom lens with short back focal distance | Kouji Oizumi, Yasuhisa Sato, Yasuyuki Yamada | 1987-03-24 |
| 4643536 | Rear conversion lens | Yasuyuki Yamada, Yasuhisa Sato, Kouji Oizumi | 1987-02-17 |
| 4582409 | Albada finder with display within the field of view | Yasuyuki Yamada, Yasuhisa Sato, Hideo Yokota | 1986-04-15 |