Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8969277 | Manufacturing method of a glass substrate for a magnetic disk | Takuhiro Hirakawa, Yasunari Hirano, Tomoyuki Yamaguchi | 2015-03-03 |
| 8926759 | Manufacturing method of a glass substrate for a magnetic disk | Takuhiro Hirakawa, Yasunari Hirano, Tomoyuki Yamaguchi | 2015-01-06 |