Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6429160 | High rigidity glass-ceramic substrate | Junko Ishioka, Katsuhiko Yamaguchi, Naoyuki Goto, Takayuki Kishi | 2002-08-06 |
| 6387509 | Glass-ceramic substrate for a magnetic information recording medium | Naoyuki Goto | 2002-05-14 |
| 6344423 | High rigidity glass-ceramic substrate for a magnetic information storage medium | Naoyuki Goto, Junko Ishioka | 2002-02-05 |