Issued Patents 2004
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829208 | Optical disk reproducing method and reproducing device | Shigeru Furumiya, Ryutaro Futakuchi | 2004-12-07 |
| 6804190 | High density phase-change type optical disk having a data efficiency of more than 80 percent | Takashi Ishida, Mamoru Shoji, Atsushi Nakamura, Junichi Minamino, Shigeru Furumiya | 2004-10-12 |
| 6757239 | Optical disk having wobble patterns and block identification marks | Junichi Minamino, Atsushi Nakamura, Shigeru Furumiya, Takashi Ishida, Toyoji Gushima | 2004-06-29 |
| 6738342 | Optical disc and optical disc address reading apparatus and method | Shigeru Furumiya, Takashi Ishida, Yoshiharu Kobayashi | 2004-05-18 |
| 6738326 | Apparatus and method for reproducing information from two types of optical disks having discrimination marks formed along tracks thereof | Ken'ichi Kasazumi | 2004-05-18 |
| 6735160 | Optical disc, and recording apparatus, recording method, and reproducing apparatus for the same | Harumitsu Miyashita, Shinichi Tanaka, Takashi Yumiba | 2004-05-11 |
| 6724708 | Optical disk medium and method and apparatus for reading information | Shigeru Furumiya, Atsushi Nakamura, Junichi Minamino, Takashi Ishida | 2004-04-20 |
| 6674700 | Optical disk having sub-blocks and sub-block indentification marks | Junichi Minamino, Atsushi Nakamura, Shigeru Furumiya, Takashi Ishida, Toyoji Gushima | 2004-01-06 |