Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6487163 | Optical disk and optical disk apparatus | Yoshinori Honguh | 2002-11-26 |
| 6477649 | Information recording apparatus, information reproducing apparatus, and information distribution system | Toru Kambayashi, Koichiro Akiyama, Shuichi Tsujimoto, Kazuo Sumita, Hideki Hirakawa | 2002-11-05 |