Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6606895 | Method of manufacturing a crown-shaped component | Takahiro Sanada, Yoshiro Sakai, Narito Shimizu, Shigeru Iwasa | 2003-08-19 |
| 6338574 | Bearing mechanism, hard disk drive mechanism and polygon mirror drive mechanism using the bearing mechanism, and method for manufacturing herringbone groove portions of dynamic-pressure bearing | Narito Shimizu, Makio Kato, Tatsuo Hisada | 2002-01-15 |