Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6576353 | Glass substrate for use as information recording medium and method of manufacturing such glass substrate | Yasuhiro Saito, Koichi Ataka, Akihiro Koyama, Junji Kurachi, Nobuyuki Yamamoto +1 more | 2003-06-10 |
| 6568995 | Method for cleaning glass substrate | Yasuhiro Saito | 2003-05-27 |
| 6550278 | Method of manufacturing glass substrate for use as information recording medium | Yasuhiro Saito, Koichi Ataka, Akihiro Koyama, Junji Kurachi, Nobuyuki Yamamoto +1 more | 2003-04-22 |
| 6547980 | Glass substrate for information recording medium, manufacturing method thereof, and information recording medium | Junji Kurachi, Akihiro Koyama, Nobuyuki Yamamoto, Yasuhiro Saito, Koichi Ataka +1 more | 2003-04-15 |