Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9574609 | Superfinishing machine, superfinishing method and outer ring of bearing having superfinished raceway surface | Eiji Utada, Takayuki Watanabe | 2017-02-21 |
| 7650696 | Manufacturing method for bearing unit for support wheel | Masaru Hashida, Nobuhiro Nakazawa, Tatsuo Wakabayashi | 2010-01-26 |