Issued Patents 2003
Showing 1–2 of 2 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, Takao Sawabe +1 more | 2003-07-22 |
| 6567612 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Ryuichiro Yoshimura, Takao Sawabe, Yoshiaki Moriyama, Kaoru Yamamoto, Akihiro Tozaki | 2003-05-20 |