Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5292381 | Piston ring and process for manufacturing the same | Takeshi Tsuchiya, Yoshio Onodera, Satoshi Kawashima | 1994-03-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5292381 | Piston ring and process for manufacturing the same | Takeshi Tsuchiya, Yoshio Onodera, Satoshi Kawashima | 1994-03-08 |