Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5352059 | Synthetic resin ball joint with reinforcing rib | Atsushi Ueno, Yoshimichi Kamiyama, Toshirou Tanaka | 1994-10-04 |
| 5267805 | Synthetic resin ball joint with metal reinforcing ring | Atsushi Ueno, Masataka Tagami, Kenji Yamada | 1993-12-07 |
| 4626121 | Pivot joint assembly capable of amplified wear indication | Takashi Tajima | 1986-12-02 |