Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6817768 | Roller bearing | Hiroki Matsuyama, Yasunari Abo | 2004-11-16 |
| 6789949 | Roller bearing having streaked grinding trail on roller end face | Hiroki Matsuyama, Yasunari Abo | 2004-09-14 |