Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6284340 | Crystallized glass, magnetic disc substrate and magnetic disc | Masahiro Abe | 2001-09-04 |
| 6270876 | Crystallized glass, substrate for magnetic disc, magnetic disc and method of producing crystallized glass | Masahiro Abe | 2001-08-07 |