Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7697400 | Optical pickup and optical disc device | Hisashi Senga, Kenzo Ishibashi, Hideki Hayashi, Yohichi Saitoh | 2010-04-13 |
| 7558170 | Optical pick-up head, optical information apparatus, and optical information reproducing method | Shin-ichi Kadowaki, Kousei Sano, Akihiro Arai, Katsuhiko Yasuda, Hiroaki Yamamoto +1 more | 2009-07-07 |
| 7558162 | Optical pick-up head, optical information apparatus, and optical information reproducing method | Shin-ichi Kadowaki, Kousei Sano, Akihiro Arai, Katsuhiko Yasuda, Hiroaki Yamamoto +1 more | 2009-07-07 |
| 7542382 | Optical pick-up head, optical information apparatus, and optical information reproducing method | Shin-ichi Kadowaki, Kousei Sano, Akihiro Arai, Katsuhiko Yasuda, Hiroaki Yamamoto +1 more | 2009-06-02 |
| 7539090 | Optical pick-up head, optical information apparatus, and optical information reproducing method | Shin-ichi Kadowaki, Kousei Sano, Akihiro Arai, Katsuhiko Yasuda, Hiroaki Yamamoto +1 more | 2009-05-26 |
| 7463561 | Optical pick-up head, optical information apparatus, and optical information reproducing method | Shin-ichi Kadowaki, Kousei Sano, Akihiro Arai, Katsuhiko Yasuda, Hiroaki Yamamoto +1 more | 2008-12-09 |
| 7460448 | Optical pick-up head, optical information apparatus, and optical information reproducing method | Shin-ichi Kadowaki, Kousei Sano, Akihiro Arai, Katsuhiko Yasuda, Hiroaki Yamamoto +1 more | 2008-12-02 |
| 7406012 | Semiconductor laser driving device, optical head device, optical information processing device, and optical recording medium | — | 2008-07-29 |
| 7254107 | Optical head and optical recording and reproducing apparatus | Hidenori Wada, Sadao Mizuno, Hideki Hayashi | 2007-08-07 |
| 7227819 | Optical pick-up head, optical information apparatus, and optical information reproducing method | Shin-ichi Kadowaki, Kousei Sano, Akihiro Arai, Katsuhiko Yasuda, Hiroaki Yamamoto +1 more | 2007-06-05 |
| 7154838 | Optical detector, optical head device, optical information processing device, and optical information processing method | Shin-ichi Kadowaki | 2006-12-26 |
| 6920102 | Converging element, optical head, and apparatus and method of optically recording and reproducing information | Sadao Mizuno, Hiroaki Yamamoto, Hideki Hayashi, Jouji Anzai | 2005-07-19 |
| 6873588 | Converging element, optical head, and apparatus and method of optically recording and reproducing information | Sadao Mizuno, Hiroaki Yamamoto, Hideki Hayashi, Jouji Anzai | 2005-03-29 |
| 6859428 | Converging element, optical head, and apparatus and method of optically recording and reproducing information | Sadao Mizuno, Hiroaki Yamamoto, Hideki Hayashi, Jouji Anzai | 2005-02-22 |
| 6643303 | Laser drive device, optical head, and optical information processor | Tatsuo Ito, Shin-ichi Kadowaki, Hiroaki Yamamoto, Yoshiaki Komma | 2003-11-04 |
| 5781351 | Mounting structure of objective lens for optical pick-up used for optical disk device | Yutaka Murakami, Takao Hayashi | 1998-07-14 |