Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8226245 | Composite optical element and projection optical device | Mitsunori Ueda, Yoshihiro Oshima, Kazutoshi Yamamoto, Atsuhiko Wajiki, Yuji Kato +2 more | 2012-07-24 |
| 8125876 | Objective lens, optical pickup apparatus using the same, optical recording/reproduction apparatus using the same, and method of correcting aberration using the same | Motoo Aiba, Hiroyuki Sakakibara, Toyokazu Takahashi, Kouhei Anju, Kenichi Ogawa | 2012-02-28 |
| 7821905 | Optical pickup device and optical disk device | Masahiro Saito, Motoo Aiba | 2010-10-26 |
| 7616548 | Optical pickup apparatus and optical disc apparatus | Masahiro Saito, Norio Fukasawa, Junichi Suzuki | 2009-11-10 |
| 7345982 | Optical pickup device, optical disk drive, optical device and composite optical element | Norio Fukasawa, Junichi Suzuki, Tetsu Tanaka, Satoru Ishii, Takeshi Kubo +1 more | 2008-03-18 |
| 7248544 | Optical head and recording and/or reproducing apparatus employing same | Masahiro Saito, Norio Fukasawa, Junichi Suzuki, Minoru Kubo, Souichi Murakami | 2007-07-24 |
| 7152159 | Encrypted mail transmission system | Matsutoshi Murata, Masao Akimoto | 2006-12-19 |
| 7064900 | Optical pickup device and optical disk device and optical device and composite optical element | Norio Fukasawa, Junichi Suzuki, Tetsu Tanaka, Takeshi Kubo, Masahiro Saito +1 more | 2006-06-20 |
| 6529454 | Integrated optical component, optical pickup, and optical disc device | Yoshito Asoma, Noriaki Nishi | 2003-03-04 |
| 5742577 | Prism has a plurality of reflective regions each with a predetermined phase difference | Hideyoshi Horimai, Katsuhiro Seo, Kimihiro Saito | 1998-04-21 |
| 5732060 | Optical pickup and optical recording medium reproducing apparatus having a wire grid unit | Kimihiro Saito, Noriaki Nishi, Hitoshi Tamada, Shuichi Matsumoto | 1998-03-24 |
| 5577018 | Phase changing apparatus and optical pickup apparatus for magneto-optic storage device using same | Hideyoshi Horimai, Katsuhiro Seo, Kimihiro Saito | 1996-11-19 |
| 5563869 | Prism has a plurality of reflective regions each with a predetermined phase difference | Hideyoshi Horimai, Katsuhiro Seo, Kimihiro Saito | 1996-10-08 |
| 5448535 | Head position control device | Goro Fujita, Shoji Iwaasa, Hiroshi Kashiwagi | 1995-09-05 |
| 4777356 | Reader for optical type record card | Minoru Ishida | 1988-10-11 |