Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7043955 | Forging die apparatus | Yuichi Nagao, Yoshihisa Doi | 2006-05-16 |
| 6189362 | Forging die apparatus | Yuichi Nagao, Yoshihisa Doi | 2001-02-20 |
| 6055838 | Method of forming outer ring of constant velocity joint | Tomonori Nakamura, Mikio Kobayashi, Yuichi Nagao, Yoshihisa Doi | 2000-05-02 |
| 6044684 | Forging apparatus for inner race of constant velocity universal joint | Tomonori Nakamura, Junya Saeki, deceased, Mikio Kobayashi | 2000-04-04 |
| 6035688 | Forging die apparatus | Yuichi Nagao, Yoshihisa Doi | 2000-03-14 |