Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12332413 | Variable magnification optical system, optical equipment, and method for producing variable magnification optical system | Takahiro Ishikawa | 2025-06-17 |
| 12092802 | Variable magnification optical system, optical equipment, and method for producing variable magnification optical system | Takahiro Ishikawa | 2024-09-17 |
| 11644655 | Variable magnification optical system, optical equipment, and method for producing variable magnification optical system | Takahiro Ishikawa | 2023-05-09 |
| 11579421 | Zoom lens, optical apparatus, and method for manufacturing zoom lens | Akihiko Obama, Issei Tanaka | 2023-02-14 |
| 11409086 | Variable magnification optical system, optical equipment, and method for producing variable magnification optical system | Takahiro Ishikawa | 2022-08-09 |
| 10895721 | Zoom lens, optical apparatus, and method for manufacturing zoom lens | Akihiko Obama, Issei Tanaka | 2021-01-19 |
| 10317654 | Variable magnification optical system, optical apparatus, and variable magnification optical system manufacturing method | Kensuke Uchida, Akihiko Obama, Hiroshi Yamamoto, Taku Matsuo | 2019-06-11 |
| 10203488 | Zoom lens, optical apparatus, and method for manufacturing zoom lens | Akihiko Obama, Issei Tanaka | 2019-02-12 |
| 9759898 | Zooming optical system, optical apparatus and method for manufacturing zooming optical system | — | 2017-09-12 |
| 9523843 | Zoom lens, optical apparatus, and method for manufacturing zoom lens | Akihiko Obama, Issei Tanaka | 2016-12-20 |
| 9513471 | Zoom lens system, optical apparatus and method for manufacturing zoom lens system | Akihiko Obama | 2016-12-06 |
| 9030755 | Zoom lens system, optical apparatus, and method for manufacturing zoom lens system | Issei Tanaka, Akihiko Obama | 2015-05-12 |
| 8913327 | Zoom lens system, optical apparatus and method for manufacturing zoom lens system | Akihiko Obama, Issei Tanaka | 2014-12-16 |