Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6475599 | Substrate for information recording media | Yasuhiro Saito, Yoshihiro Matsuno, Tatsuro Umeyama, Kazuaki Kanai | 2002-11-05 |
| 6440531 | Hydrofluoric acid etched substrate for information recording medium | Junji Kurachi, Akihiro Koyama, Nobuyuki Yamamoto, Yasuhiro Saito, Koichi Ataka +1 more | 2002-08-27 |