Issued Patents All Time
Showing 26–50 of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7180683 | Zoom lens system | Keiko Mizuguchi | 2007-02-20 |
| 7158315 | Zoom lens system | — | 2007-01-02 |
| 6987623 | Image size changeable fisheye lens system | — | 2006-01-17 |
| 6833964 | Zoom lens system | Keiko Mizuguchi | 2004-12-21 |
| 6721105 | Zoom lens system | Motoyuki Ohtake | 2004-04-13 |
| 6504655 | Wide converter lens | — | 2003-01-07 |
| 6498688 | Zoom lens system | — | 2002-12-24 |
| 6482780 | Grease composition for rolling bearing | Atsushi Yokouchi, Jun Kuraishi, Youichiro Sugimori, Yasunobu Fujita, Michiharu Naka +1 more | 2002-11-19 |
| 6472348 | Pyridone derivatives and herbicides | Mikio Yamaguchi, Yoshihiro Ito, Yoshihiro Yamaji, Ryo Hanai, Sota Uotsu +1 more | 2002-10-29 |
| 6349002 | Variable focal length lens system and imaging apparatus equipped with thereof | Kouichi Oshita, Keiko Mizuguchi | 2002-02-19 |
| 6304389 | Variable focal length lens system | — | 2001-10-16 |
| 6265349 | Pyridone derivatives and herbicides | Mikio Yamaguchi, Yoshihiro Ito, Yoshihiro Yamaji, Ryo Hanai, Sota Uotsu +1 more | 2001-07-24 |
| 6251841 | Grease composition | Hideki Koizumi, Atsushi Yokouchi, Kenichi Iso, Michiharu Naka, Toshiaki Endo | 2001-06-26 |
| 6232278 | Lubricating grease composition | Hiroshi Kimura | 2001-05-15 |
| 6124984 | Variable magnification optical zoom lens system | Koichi Ohshita | 2000-09-26 |
| 6048823 | Pyridone derivatives and herbicides | Mikio Yamaguchi, Yoshihiro Ito, Yoshihiro Yamaji, Ryo Hanai, Sota Uotsu +1 more | 2000-04-11 |
| 5973855 | Zoom lens adjustment method | — | 1999-10-26 |
| 5949588 | Wide angle lens | Koichi Ohshita | 1999-09-07 |
| 5920435 | Zoom lens | — | 1999-07-06 |
| 5798871 | Zoom lens | Masatoshi Suzuki, Takanori Fujita | 1998-08-25 |
| 5793531 | Zoom lens | — | 1998-08-11 |
| 5760958 | Compact zoom lens with antivibration function | — | 1998-06-02 |
| 5721642 | Zoom lens | Masatoshi Suzuki, Takanori Fujita | 1998-02-24 |
| 5717527 | Zoom lens | — | 1998-02-10 |
| 5715097 | Zoom lens | Takanori Fujita, Masatoshi Suzuki | 1998-02-03 |