Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5028494 | Brake disk material for railroad vehicle | Taro Tsujimura, Akira Watanabe, Yoshihiro Sugai | 1991-07-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5028494 | Brake disk material for railroad vehicle | Taro Tsujimura, Akira Watanabe, Yoshihiro Sugai | 1991-07-02 |