Issued Patents 2003
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6597861 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Akihiro Tozaki, Tokihiro Takahashi, Hiroshi Nakamura, Takao Sawabe, Kaoru Yamamoto +1 more | 2003-07-22 |
| 6574187 | Audio information recording medium and audio information reproducing apparatus | Takao Sawabe, Shozo Ema, Kaoru Yamamoto, Yoshinori Hasegawa, Tokihiro Takahashi | 2003-06-03 |
| 6552983 | Apparatus and method for detecting abnormal condition at the time of recording or reproducing information on information recording medium | Masayoshi Yoshida | 2003-04-22 |
| 6553177 | Information recording and reproducing system | Yuji Shimizu, Takayoshi Noguchi, Takashi Irisawa, Eiji Muramatsu, Ichiro Higuchi | 2003-04-22 |
| 6549496 | Information recording apparatus and information reproducing apparatus | Kazuo Kuroda, Toshiro Tanikawa, Jiro Endo | 2003-04-15 |
| 6515950 | Information recording medium, and method and system for reading and writing information thereon | Toshiro Tanikawa, Tadashi Noguchi | 2003-02-04 |