Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7580327 | Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method | Hidenori Wada, Daisuke Ogata, Seiji Nishino, Hiroaki Yamamoto, Shin-ichi Kadowaki +1 more | 2009-08-25 |
| 7352664 | Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method | Hidenori Wada, Daisuke Ogata, Seiji Nishino, Hiroaki Yamamoto, Shin-ichi Kadowaki +1 more | 2008-04-01 |
| 7170664 | Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method | Hidenori Wada, Daisuke Ogata, Seiji Nishino, Hiroaki Yamamoto, Shin-ichi Kadowaki +1 more | 2007-01-30 |
| 7158450 | Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method | Hidenori Wada, Daisuke Ogata, Seiji Nishino, Hiroaki Yamamoto, Shin-ichi Kadowaki +1 more | 2007-01-02 |
| 7126905 | Information recording medium and information recording/reproducing apparatus to increase recording density | Akihiro Arai, Tohru Nakamura | 2006-10-24 |
| 7038978 | Optical information recording and reproducing apparatus for recording information bits into an optical disk in a three dimensional arrangement | Teruhiro Shiono, Hiroaki Yamamoto | 2006-05-02 |
| 7034980 | Optical element, optical head, optical recording reproducing apparatus and optical recording/ reproducing method | Hidenori Wada, Daisuke Ogata, Seiji Nishino, Hiroaki Yamamoto, Shin-ichi Kadowaki +1 more | 2006-04-25 |
| 6987598 | Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method | Hidenori Wada, Daisuke Ogata, Seiji Nishino, Hiroaki Yamamoto, Shin-ichi Kadowaki +1 more | 2006-01-17 |
| 6856584 | Aberration detection device and optical information recording and reproducing apparatus | Shin-ichi Tanaka | 2005-02-15 |
| 6834036 | Optical head for a plurality of types of information recording media | Teruhiro Shiono, Keiichi Matsuzaki | 2004-12-21 |
| 6806964 | Optical recording and/or reproduction apparatus, tracking method, and optical recording medium | Hiroaki Yamamoto, Teruhiro Shiono | 2004-10-19 |
| 6714498 | Information recording/reproducing apparatus | Yoshiaki Komma, Shin-ichi Tanaka | 2004-03-30 |
| 6661750 | Aberration detection device and optical information recording and reproducing apparatus | Shin-ichi Tanaka | 2003-12-09 |
| 6650612 | Optical head and recording reproduction method | Keiichi Matsuzaki, Teruhiro Shiono, Ken'ichi Kasazumi | 2003-11-18 |
| 6584059 | Information recording and reproducing apparatus | Seiji Nishino, Hidenori Wada, Teruhiro Shiono, Keiichi Matsuzaki | 2003-06-24 |
| 6567358 | Information recording/reproducing apparatus | Yoshiaki Komma, Shin-ichi Tanaka | 2003-05-20 |
| 6549346 | Assembled lens, optical head and optical recordable player with them | Hidenori Wada, Keiichi Matsuzaki, Seiji Nishino, Kenichi Kasazumi, Masanari Mohri | 2003-04-15 |
| 6532202 | Optical element, optical head and optical recording reproducing apparatus | Hidenori Wada, Shin-ichi Kadowaki, Hiroaki Yamamoto, Daisuke Ogata, Naoya Hotta +1 more | 2003-03-11 |
| 6504660 | Prism and manufacturing method thereof, optical beam shaping apparatus and optical head device utilizing such prism, and optical beam shaping method | Seiji Nishiwaki | 2003-01-07 |
| 6487016 | Optical head | Teruhiro Shiono | 2002-11-26 |
| 6480454 | Optical element, optical head using the optical element, and optical recording and reproducing apparatus using the optical element | Hidenori Wada, Daisuke Ogata, Sadao Mizuno, Seiji Nishino | 2002-11-12 |
| 6430137 | Aberration detection device and optical information recording and reproducing apparatus | Shin-ichi Tanaka | 2002-08-06 |
| 6414930 | Optical head | Teruhiro Shiono, Keiichi Matsuzaki | 2002-07-02 |
| 6327238 | Optical disk device | Seiji Nishiwaki | 2001-12-04 |
| 6304526 | Optical head | Kenji Nagashima, Yasuhiro Tanaka, Yoichi Saito, Yasuo Nishihara | 2001-10-16 |