Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7544004 | Lens barrel and image pickup apparatus | Hiroshi Kawai | 2009-06-09 |
| 6219173 | Optical device and its manufacturing method | Tooru Udaka, Shinichiro Yamada, Hiroshi Imoto, Masaru Kawabata | 2001-04-17 |
| 6045725 | Optical device and electrolytic solution | Toru Udaka | 2000-04-04 |
| 5956170 | Optical unit and production thereof | Koichi Ise | 1999-09-21 |
| 5864420 | Optical unit and electrolytic solution | Toru Udaka | 1999-01-26 |
| 5764401 | Optical apparatus | Tohru Udaka, Kazuhiro Noda, Koichiro Hinokuma | 1998-06-09 |