Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4909198 | Aluminum alloy valve lifter with sprayed coating and method of producing same | Shigeki Shiraya, Takesi Nakakobara, Hitoshi Ishii, Takashi Tomoda, Kenji Shimoda +2 more | 1990-03-20 |