Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5028494 | Brake disk material for railroad vehicle | Shuji Manabe, Akira Watanabe, Yoshihiro Sugai | 1991-07-02 |
| 4760900 | Friction brakes | Takashi Shima, Katuro Takasawa, Tomoharu Ashikawa, Yasuo Takenaka, Shunichi Tomizuka | 1988-08-02 |