Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6485830 | Material for ceramic ball and method of manufacturing ceramic ball | Hiroshi Komorita, Minoru Takao, Hiroki Tonai | 2002-11-26 |
| 6475940 | Wear resistant member for electronic equipment and bearing and spindle motor therewith | Yukihiro Takenami, Minoru Takao, Hiroki Tonai, Yoshiyuki Fukuda, Hisao Yabe +1 more | 2002-11-05 |
| 6366181 | Adjusting method for group-delay characteristics of piezoelectric resonators | — | 2002-04-02 |