Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9297078 | Method for producing hard disk substrate | Nobuaki Mukai, Takahiro Yoshida | 2016-03-29 |
| 8109808 | Method of surface-finishing glass substrate for magnetic disks and glass substrate for magnetic disks | Yoshio Uchiyama, Hiroshi Doi | 2012-02-07 |