Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7242848 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Takao Sawabe, Ryuichiro Yoshimura, Junichi Yoshio, Akihiro Tozaki, Yoshiaki Moriyama +1 more | 2007-07-10 |
| RE39110 | Information recording medium, apparatus for recording the same and apparatus for recording the same | Yoshiaki Moriyama, Takao Sawabe, Ryuichiro Yoshimura, Kaoru Yamamoto, Akihiro Tozaki +4 more | 2006-05-30 |
| 6501903 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Ryuichiro Yoshimura, Takao Sawabe, Yoshiaki Moriyama, Kaoru Yamamoto, Akihiro Tozaki +1 more | 2002-12-31 |
| 6157769 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Ryuichiro Yoshimura, Takao Sawabe, Yoshiaki Moriyama, Kaoru Yamamoto, Akihiro Tozaki +1 more | 2000-12-05 |
| 6067282 | Information recording medium, apparatus for recording the same and apparatus for recording the same | Yoshiaki Moriyama, Takao Sawabe, Ryuichiro Yoshimura, Kaoru Yamamoto, Akihiro Tozaki +4 more | 2000-05-23 |
| 5889746 | Information recording medium, apparatus for recording the same and apparatus for reproducing the same | Yoshiaki Moriyama, Takao Sawabe, Ryuichiro Yoshimura, Kaoru Yamamoto, Akihiro Tozaki +4 more | 1999-03-30 |