Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8463575 | Gear meshing angle detection method and device | Toshimasa Kikuchi | 2013-06-11 |
| 7764586 | Aberration correcting apparatus, optical pickup, and aberration correcting method | Shinichi Fujinoki | 2010-07-27 |
| 7680007 | Optical state recognizer, information processor, and optical state recognizing method | — | 2010-03-16 |
| 7170831 | Optical pickup astigmatism measuring method, optical pickup astigmatism adjusting method, and optical pickup astigmatism measuring system | Hitoshi Takiguchi, Hidekazu Ouchi, Yasushi Kumamaru, Naoki Yamada, Tetsuya Murakami +1 more | 2007-01-30 |
| 7064308 | Method of and apparatus for adjusting the focus position of an optical pickup | Hitoshi Takiguchi, Hidekazu Ouchi, Yasushi Kumamaru, Naoki Yamada, Tetsuya Murakami +1 more | 2006-06-20 |
| 6980496 | Information recording/reproducing apparatus | Shinichi Nagahara, Ryo Sato | 2005-12-27 |
| 6912234 | Optical pickup apparatus and laser diode chip | Shinichi Takahashi, Hirokatsu Nagatake, Aki Yoshioka, Mitsutoshi Sugano, Makoto Kawamura +2 more | 2005-06-28 |
| 6798727 | Optical pickup apparatus | Takehiro Motegi, Shinichi Takahashi, Mitsutoshi Sugano, Makoto Kawamura, Yoshihiro Seita | 2004-09-28 |
| 6781947 | Optical pickup apparatus | Takehiro Motegi, Shinichi Takahashi, Mitsutoshi Sugano, Yoshihiro Seita, Makoto Kawamura | 2004-08-24 |
| 6480456 | Optical pickup apparatus for reading different types of recording media at different reading wavelengths | Makoto Kawamura, Shinichi Takahashi, Hirokatsu Nagatake, Aki Yoshioka, Mitsutoshi Sugano +2 more | 2002-11-12 |
| 6452880 | Optical pickup apparatus | Makoto Kawamura, Shinichi Takahashi, Hirokatsu Nagatake, Aki Yoshioka, Mitsutoshi Sugano +2 more | 2002-09-17 |
| 6429981 | Optical pickup apparatus | Shinichi Takahashi, Mitsutoshi Sugano, Hirokatsu Nagatake, Aki Yoshioka, Makoto Kawamura +2 more | 2002-08-06 |