Issued Patents 2004
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829208 | Optical disk reproducing method and reproducing device | Ryutaro Futakuchi, Hiromichi Ishibashi | 2004-12-07 |
| 6804190 | High density phase-change type optical disk having a data efficiency of more than 80 percent | Takashi Ishida, Hiromichi Ishibashi, Mamoru Shoji, Atsushi Nakamura, Junichi Minamino | 2004-10-12 |
| 6791926 | Method and device for finding conditions on recording pulse of optical disk | Junichi Minamino, Mamoru Shoji | 2004-09-14 |
| 6757239 | Optical disk having wobble patterns and block identification marks | Junichi Minamino, Atsushi Nakamura, Hiromichi Ishibashi, Takashi Ishida, Toyoji Gushima | 2004-06-29 |
| 6738342 | Optical disc and optical disc address reading apparatus and method | Hiromichi Ishibashi, Takashi Ishida, Yoshiharu Kobayashi | 2004-05-18 |
| 6724708 | Optical disk medium and method and apparatus for reading information | Hiromichi Ishibashi, Atsushi Nakamura, Junichi Minamino, Takashi Ishida | 2004-04-20 |
| 6674700 | Optical disk having sub-blocks and sub-block indentification marks | Junichi Minamino, Atsushi Nakamura, Hiromichi Ishibashi, Takashi Ishida, Toyoji Gushima | 2004-01-06 |