Issued Patents All Time
Showing 26–50 of 84 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6721105 | Zoom lens system | Atsushi Shibayama | 2004-04-13 |
| 6577452 | Variable focal length lens system | Toshinori Take | 2003-06-10 |
| 6556356 | Zoom lens system | — | 2003-04-29 |
| 6480341 | Variable focal length lens system | — | 2002-11-12 |
| 6339509 | Variable focal length optical system | — | 2002-01-15 |
| 6333822 | Variable focal length lens system | — | 2001-12-25 |
| 6271973 | Variable focal length lens system | Satoshi Hayakawa | 2001-08-07 |
| 6249389 | Variable focal-length lens system | — | 2001-06-19 |
| 6215599 | Zoom lens optical system | — | 2001-04-10 |
| 6166863 | Zoom lens optical system | — | 2000-12-26 |
| 6108137 | Zoom lens system | — | 2000-08-22 |
| 6088543 | Optical transmission element, and illumination device employing this optical transmission element | Hidenobu Kaji, Hidenori Miyamoto | 2000-07-11 |
| 6055114 | Zoom lens optical system | — | 2000-04-25 |
| 6031669 | Zoom lens | — | 2000-02-29 |
| 6002527 | Compact high-zoom-ratio zoom lens | — | 1999-12-14 |
| 5999329 | Variable focal length optical system | — | 1999-12-07 |
| 5973814 | Optical document scanning method and apparatus with adjustable scanning magnification | Satoru Yoshizawa | 1999-10-26 |
| 5946145 | Variable focal length optical system | — | 1999-08-31 |
| 5887202 | Lens controlling device and method for lens system with variable focal length | Koichi Ohshita | 1999-03-23 |
| 5880892 | Variable focal length lens system | — | 1999-03-09 |
| 5875359 | Focusing method and apparatus for camera | Koichi Ohshita | 1999-02-23 |
| 5867325 | Zoom lens ranging to wide angles | Akihiko Obama | 1999-02-02 |
| 5835287 | Variable focal length optical system | — | 1998-11-10 |
| 5831768 | Zoom lens capable of shifting an image | — | 1998-11-03 |
| 5828499 | Zoom lens system | — | 1998-10-27 |