Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8427570 | Focus position control apparatus and camera | Kanato Adachi | 2013-04-23 |
| 7801439 | Image taking device having a detachable optical unit, an attachment and displacement detection unit, and a control unit responsive to attachment and displacement detection | Hideki Nagata, Minoru Omaki, Hirofumi Tsuchida | 2010-09-21 |
| 7604423 | Interchangeable-lens camera | Hideki Nagata, Minoru Omaki, Hirofumi Tsuchida | 2009-10-20 |
| 7599268 | Optical disc recording/reproducing apparatus | — | 2009-10-06 |
| 7054075 | Optical apparatus | Kimihiko Nishioka, Tetsuhide Takeyama, Tetsuo Nagata, Kazuhito Hayakawa | 2006-05-30 |
| 7043153 | Image capturing unit and image capturing device | Tetsuhide Takeyama | 2006-05-09 |
| 7009787 | Portable image display | — | 2006-03-07 |
| 6987620 | Light weight head mounted image display device | — | 2006-01-17 |
| 6980375 | Objective lens system | — | 2005-12-27 |
| 6934090 | Variable optical element, optical unit, and image capturing device | Tetsuhide Takeyama | 2005-08-23 |
| 6791773 | Portable image display | — | 2004-09-14 |
| 6697200 | Light weight head mounted image display device | — | 2004-02-24 |
| 6618209 | Optical apparatus | Kimihiko Nishioka, Tetsuhide Takeyama, Tetsuo Nagata, Kazuhito Hayakawa | 2003-09-09 |
| 6519098 | Objective lens system | — | 2003-02-11 |
| 6317270 | Optical system | — | 2001-11-13 |
| 6256155 | Objective optical system | — | 2001-07-03 |
| 6252723 | Objective optical system | — | 2001-06-26 |
| 6243217 | Objective lens system | — | 2001-06-05 |
| 6163410 | Optical system | — | 2000-12-19 |
| 6160669 | Lens system | — | 2000-12-12 |
| 5999327 | Objective lens system | — | 1999-12-07 |
| 5995295 | Lens system | — | 1999-11-30 |
| 5973850 | Lens system | — | 1999-10-26 |
| 5966245 | Zoom lens system | — | 1999-10-12 |
| 5841586 | Optical system | — | 1998-11-24 |