Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7372980 | Information terminal apparatus with collation function | Izuru Kiyokawa, Takahiro Shimizu | 2008-05-13 |
| 6519420 | Viewfinder apparatus for camera | Yoshihiro Yokomae | 2003-02-11 |
| 6439727 | Barrier member for a telescope | — | 2002-08-27 |
| 6429969 | Binoculars having lens barrels movable between open and closed states by pivotal movement | Fumio Tomikawa, Yuichi Torikoshi | 2002-08-06 |
| 6280040 | Optical apparatus | — | 2001-08-28 |
| 6175447 | Binocular instrument including movable lens protective structure | Yuichi Torikoshi | 2001-01-16 |
| 6157482 | Binoculars capable of quickly moving lens covers to a retracted position when in use | — | 2000-12-05 |
| 6141503 | Visual field of finder change-over apparatus | Tetsuya Takagi, Yukihiko Sugita | 2000-10-31 |
| 6094303 | Binoculars | Fumio Tomikawa, Tatsuya Suzuki, Yuichi Torikoshi | 2000-07-25 |