Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6131282 | Method of manufacturing a valve element having a spherical surface on tip end portion | Yasuhiko Takami | 2000-10-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6131282 | Method of manufacturing a valve element having a spherical surface on tip end portion | Yasuhiko Takami | 2000-10-17 |