Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4998461 | Two-part plastic piston with excess resin receiving groove | Ichiro Ishiwata | 1991-03-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4998461 | Two-part plastic piston with excess resin receiving groove | Ichiro Ishiwata | 1991-03-12 |