Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6474652 | Shaft seal device | Masachi Hosoya, Kazuaki Konishi | 2002-11-05 |
| 6346566 | Lubricant-feeding material | Takahiko Uchiyama | 2002-02-12 |
| 6340244 | Rolling bearing for hard disk drive | Yasunobu Fujita, Masao Yamamoto, Kouichi Hachiya, Atsushi Yokouchi, Emiko Shiraishi +1 more | 2002-01-22 |