Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9038417 | Method for producing glass substrate for magnetic disk and method for manufacturing magnetic disk | Toshio Takizawa, Yoshinori Marumo, Masahiro Katagiri | 2015-05-26 |
| 8763428 | Method for producing glass substrate for magnetic disk and method for manufacturing magnetic disk | Toshio Takizawa, Yoshinori Marumo, Masahiro Katagiri | 2014-07-01 |