Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE48843 | Rolling bearing and spindle apparatus for machine tool | Naoki Matsuyama, Sumio Sugita, Yu Koiwa, Tamotsu Misawa, Masaru Terasaki | 2021-12-07 |
| 7530743 | Double row cylindrical roller bearing | Kenji Yakura, Ken Inaba, Yasushi Morita | 2009-05-12 |
| 7267488 | Rolling bearing and spindle device for machine tools | Saburo Azumi, Yasushi Morita, Naoki Matsuyama | 2007-09-11 |
| 7033082 | Angular contact ball bearing and spindle device | Kenji Yakura, Yasushi Morita, Naoki Matsuyama | 2006-04-25 |
| 6869223 | Rolling bearing and spindle device for machine tools | Saburo Azumi, Yasushi Morita, Naoki Matsuyama | 2005-03-22 |
| 6742934 | Rolling bearing and spindle apparatus for machine tool | Naoki Matsuyama, Sumio Sugita, Yu Koiwa, Tamotsu Misawa, Masaru Terasaki | 2004-06-01 |
| 6709161 | Angular contact ball bearing and spindle device | Kenji Yakura, Yasushi Morita, Naoki Matsuyama | 2004-03-23 |