Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7146734 | Rolling elements for rolling bearing, method of producing the same, and rolling bearing | Takashi Murai, Katsuhiro Yamazaki | 2006-12-12 |
| 6752696 | Rolling elements for rolling bearing, method of producing the same, and rolling bearing | Takashi Murai, Katsuhiro Yamazaki | 2004-06-22 |