Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8966767 | Manufacturing method of a drawn cup needle roller bearing having seal ring | Tomohiro Kudou, Kazuto Kobayashi, Kiyoshi Ootsuka, Isao Shintou | 2015-03-03 |
| 8177435 | Manufacturing method of a drawn cup needle roller bearing having seal ring | Tomohiro Kudou, Kazuto Kobayashi, Kiyoshi Ootsuka, Isao Shintou | 2012-05-15 |
| 7571543 | Method of manufacturing a retainer for a roller bearing | Kazuto Kobayashi, Toshio Nakamura, Yoshiro Ide | 2009-08-11 |