Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6217423 | Apparatus and method for mirror surface grinding of magnetic disc substrate | Hitoshi Ohmori, Nobuhide Itoh, Susumu Shimizu, Shinji Ishii, Manabu Yamada | 2001-04-17 |