Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8009547 | Optical recording and reproducing apparatus capable of identifying the type of optical disc based on reflectance, and reproducing method for optical disc | Hiroshi Shirai | 2011-08-30 |
| 7505392 | Optical disk with a plurality of radially extending marks for recording reflectance data of the optical disk | Hiroshi Shirai | 2009-03-17 |
| 7236447 | Optical disk, method of playing optical disk, and optical disk drive | Tamotsu Iida, Toshinori Sugiyama, Hideki Nagano, Toshiaki Taii, Yuji Yamazaki | 2007-06-26 |
| 7033659 | Optical information recording medium and method of recording and reproducing information on and from optical information recording medium | Hiroshi Shirai, Kazuyo Umezawa, Makoto Iimura, Akira Kashiwakura, Kazuyoshi Adachi | 2006-04-25 |
| 6806030 | Information recording medium and method for manufacturing information recording medium | Motoyasu Terao, Makoto Miyamoto, Yasushi Miyauchi, Keikichi Ando, Yumiko Anzai +3 more | 2004-10-19 |
| 6781926 | Magneto-optical head having heat sink layer | Osamu Ishizaki, Katsusuke Shimazaki, Hiroyuki Awano, Tsuyoshi Maro, Toshinori Sugiyama | 2004-08-24 |
| 6709801 | Information recording medium | Makoto Miyamoto, Yoshihiro Ikari, Tamotsu Fuchioka, Hitoshi Watanabe, Junko Ushiyama +2 more | 2004-03-23 |
| 6383595 | Information recording medium | Akemi Hirotsune, Motoyasu Terao, Makoto Miyamoto, Yasushi Miyauchi, Tetsuya Nishida +5 more | 2002-05-07 |
| 5688574 | Optical recording medium | Yoshihiro Ikari, Toshiaki Taii, Norio Ota | 1997-11-18 |
| 5368986 | Information recording media, manufacturing method for the same, and information recording method | Motoyasu Terao, Keikichi Andoo, Shigenori Okamine, Yasushi Miyauchi, Masahiko Takahashi +1 more | 1994-11-29 |