Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7817528 | Optical disk medium and optical disk apparatus | Yutaka Yamanaka, Kinji Kayanuma, Chosaku Noda, Hideaki Ohsawa | 2010-10-19 |
| 7492696 | Optical disk medium and optical disk apparatus | Yutaka Yamanaka, Kinji Kayanuma, Chosaku Noda, Hideaki Ohsawa | 2009-02-17 |
| 7453780 | Information recording medium, information recording/reproducing apparatus and information management method | Akihito Ogawa, Chosaku Noda | 2008-11-18 |
| 7336576 | Optical disk medium and optical disk recording/reproducing apparatus utilizing tilt detection areas having special marks | Yutaka Yamanaka, Ryuichi Katayama, Takeharu Shibatoko, Masatsugu Ogawa, Daisuke Eto +2 more | 2008-02-26 |
| 6795381 | Multi-body multi-purpose information processing apparatus | Hideo Ando, Seigo Ito, Hiromichi Kobori, Naobumi Seo, Hiroaki Unno +2 more | 2004-09-21 |
| 5930227 | Optical disk having an evaluation pattern for evaluating the optical disk | Sadanari Fujimoto | 1999-07-27 |
| 5903531 | Reproduction device for optical disks | Hisashi Yamada, Junichi Uota | 1999-05-11 |
| 5892751 | Optical disk having an evaluation pattern for evaluating the optical disk | Sadanari Fujimoto | 1999-04-06 |
| 5848041 | Method and apparatus for recording digital signals medium for recording digital signals and method | Koichi Hirayama | 1998-12-08 |
| 5719842 | Method and apparatus for recording digital signals, medium for recording digital signals, and method and apparatus for transmitting digital signals | Koichi Hirayama | 1998-02-17 |
| 5696756 | Optical disk having an evaluation pattern for evaluating the optical disk | Sadanari Fujimoto | 1997-12-09 |
| 5475210 | Noise reduction system for optical record and reproduction apparatus using auto-power controlled semiconductor laser device | Toyoki Taguchi, Toshihiro Sugaya, Hisashi Yamada, Kei Shimura, Isao Hoshino +4 more | 1995-12-12 |