Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5980407 | Sprocket and brake disc having a function to prevent a warpage | Norihiko Takamori, Fumihiko Metsugi | 1999-11-09 |
| 5830095 | Sprocket and manufacturing method thereof | Norihiko Takamori, Fumihiko Metsugi, Akihito Yoshiie, Shunji Takeda | 1998-11-03 |
| D381609 | Brake disk | Fumihiko Metsugi | 1997-07-29 |
| D381610 | Brake disk | Fumihiko Metsugi | 1997-07-29 |
| D381611 | Brake disk | Fumihiko Metsugi | 1997-07-29 |