Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6337776 | Prism optical system and image pickup apparatus using the same | — | 2002-01-08 |
| 6259564 | Finder optical system | — | 2001-07-10 |
| 6249391 | Image-forming optical system | Kazuhito Hayakawa | 2001-06-19 |
| 6178048 | Image-forming optical system | Takayoshi Togino | 2001-01-23 |
| 6154323 | Zoom lens system using a diffractive optical element | — | 2000-11-28 |
| 6097547 | Front converter lens system using a diffractive surface | Yasuji Ogata | 2000-08-01 |
| 6011651 | Photographic optical system using diffractive optical element | — | 2000-01-04 |
| 5978159 | Hybrid photographic objective | — | 1999-11-02 |
| 5884108 | Data imprinting optical system | Hideyasu Takato, Yuji Miyauchi | 1999-03-16 |
| 5850312 | Three-unit zoom lens | Shigeru Kato | 1998-12-15 |
| 5808812 | Zoom lens system | — | 1998-09-15 |
| 5684638 | Two-unit zoom lens system having high zoom ratio | Yasuji Ogata | 1997-11-04 |
| 5646787 | Zoom lens system | — | 1997-07-08 |
| 5541773 | Two-unit zoom lens system | Hideyasu Takato | 1996-07-30 |
| 5471271 | Real image mode variable magnification finder optical system | — | 1995-11-28 |
| 5359377 | Real image type variable magnification view-finder optical system | — | 1994-10-25 |