Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6597861 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Akihiro Tozaki, Hidehiro Ishii, Tokihiro Takahashi, Hiroshi Nakamura, Kaoru Yamamoto +1 more | 2003-07-22 |
| 6577589 | Information recording medium, information recording apparatus and information reproducing apparatus | Kaoru Yamamoto, Akihiro Tozaki | 2003-06-10 |
| 6574187 | Audio information recording medium and audio information reproducing apparatus | Hidehiro Ishii, Shozo Ema, Kaoru Yamamoto, Yoshinori Hasegawa, Tokihiro Takahashi | 2003-06-03 |
| 6571055 | Compressed audio information recording medium, compressed audio information recording apparatus and compressed audio information reproducing apparatus | Akihiro Tozaki, Kaoru Yamamoto | 2003-05-27 |
| 6567612 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Junichi Yoshio, Ryuichiro Yoshimura, Yoshiaki Moriyama, Kaoru Yamamoto, Akihiro Tozaki | 2003-05-20 |