Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7172349 | Light amount control device and optical apparatus with guard portion to protect ND filter from lever member | — | 2007-02-06 |
| 6654182 | Lens barrel and optical apparatus with lens barrel | — | 2003-11-25 |
| 6553185 | Optical apparatus | Hiroyoshi Inaba, Tadanori Okada | 2003-04-22 |
| 5966118 | Ergonomic computer mouse | — | 1999-10-12 |
| 5029991 | Lens barrel | Takahiro Kohno | 1991-07-09 |