Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8966767 | Manufacturing method of a drawn cup needle roller bearing having seal ring | Kazuto Kobayashi, Keiichi Horino, Kiyoshi Ootsuka, Isao Shintou | 2015-03-03 |
| 8177435 | Manufacturing method of a drawn cup needle roller bearing having seal ring | Kazuto Kobayashi, Keiichi Horino, Kiyoshi Ootsuka, Isao Shintou | 2012-05-15 |