Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10808761 | Rolling bearing, and abrasion resistance treatment method for bearing raceway surface | Weida Yan, Kazumasa Seko, Takashi Yamamoto, Naoya Hasegawa | 2020-10-20 |
| 10718377 | Method for producing bearing ring, double row tapered roller bearing, and method for producing double row tapered roller bearing | Hideto Torisawa, Hiroshi Yuki, Chikara Ohki, Kazuhiro Yagita | 2020-07-21 |
| 10697492 | Double-row self-aligning roller bearing | Takashi Yamamoto, Yasuyuki Inoue, Kazumasa Seko | 2020-06-30 |
| 10655674 | Double-row self-aligning roller bearing | Takashi Yamamoto, Kazumasa Seko, Yasuyuki Inoue | 2020-05-19 |