Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8184386 | Fresnel lens and injection mold | Shuusuke Tobita | 2012-05-22 |
| 7474349 | Image-taking apparatus | — | 2009-01-06 |
| 7283737 | Focus detecting apparatus | — | 2007-10-16 |
| 6836619 | Microlens array, optical apparatus, single lens reflex camera and optical finder | — | 2004-12-28 |
| 6272291 | Focus detecting device | — | 2001-08-07 |
| 6088537 | Focus detecting device | Keiji Ohtaka | 2000-07-11 |
| 5893650 | Viewfinder system and single-lens reflex camera having the same | — | 1999-04-13 |
| 5850578 | Light-projecting system for automatic focus detection | — | 1998-12-15 |
| 5797049 | Focus detection device for objective lens | Keiji Ohtaka | 1998-08-18 |