Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7691213 | Case hardened gear and method of producing the same | Takemori Takayama, Chikara Nakao, Noriko Morioka | 2010-04-06 |
| 7422643 | Rolling element and method of producing the same | Takemori Takayama, Chikara Nakao, Noriko Morioka | 2008-09-09 |