Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7944552 | Method for displaying result of measurement of eccentricity | — | 2011-05-17 |
| 7932952 | Light quantity adjusting device, optical system having the same, and image taking apparatus | Takeshi Koyama | 2011-04-26 |
| 7511803 | Method for displaying result of measurement of eccentricity | — | 2009-03-31 |
| 7440089 | Method of measuring decentering of lens | — | 2008-10-21 |
| 7307708 | Eccentricity measuring method and eccentricity measuring apparatus | — | 2007-12-11 |
| 7042662 | Light amount adjusting device, and optical device using the light amount adjusting device | Susumu Abe, Daisuke Ito | 2006-05-09 |
| 6867916 | Viewfinder optical system | Takeshi Koyama | 2005-03-15 |
| 6709168 | Optical unit with increased reliability | Hirofumi Imabayashi, Kenji Joko, Tsutomu Takahashi, Katsuya Fujii, Kazunori Omori +2 more | 2004-03-23 |
| 6496358 | Breaker apparatus and breaker unit | Yasuhisa Kanemaru, Takahisa Yoshizumi, Kazunori Oomori, Yoshiaki Tobimatsu, Mitsuru Etou | 2002-12-17 |
| 5989405 | Process for producing a dresser | Kenji Kakui | 1999-11-23 |
| 5784205 | Zoom lens | Hiroki Nakayama, Akihisa Horiuchi, Hitoshi Mukaiya, Fumihito Wachi | 1998-07-21 |
| 5754346 | Zoom lens | Hiroki Nakayama, Akihisa Horiuchi, Hitoshi Mukaiya, Fumihito Wachi | 1998-05-19 |
| 5739961 | Zoom lens | Hiroki Nakayama, Akihisa Horiuchi, Hitoshi Mukaiya, Fumihito Wachi | 1998-04-14 |
| 5638216 | Zoom lens | Akihisa Horiuchi, Hiroyuki Hamano, Akihiro Nishio | 1997-06-10 |
| 5056900 | Zoom lens | Hitoshi Mukaiya, Akihisa Horiuchi, Akihiro Nishio | 1991-10-15 |
| 4407263 | Cutting blade | — | 1983-10-04 |