Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6589893 | Glass-ceramics having hexacelsian as a primary crystal phase, magnetic disk substrate and magnetic disk | Masahiro Abe, Takahiro Takahashi, Atsushi Watanabe | 2003-07-08 |