Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5267805 | Synthetic resin ball joint with metal reinforcing ring | Atsushi Ueno, Tatsuyoshi Tsuji, Kenji Yamada | 1993-12-07 |
| 4722631 | Ball-and-socket joint with rubber-cushioned ball | — | 1988-02-02 |