Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6745472 | Manufacturing method of steel ball for rolling bearing | Yoshiki Fujita, Kazuyuki Nishikita, Hideji Yoshida | 2004-06-08 |
| 6726728 | Rolling bearing | Tsuyoshi Okumura, Hiroyuki Miyazaki, Yoshitaka Nakagawa | 2004-04-27 |