Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9452503 | Green ball grinding method, ceramic sphere fabrication method, and grinding apparatus | Katsutoshi Muramatsu | 2016-09-27 |
| 9284982 | Cage and rolling bearing | Mitsuo Kawamura, Eiichiro Shimazu, Takahiro Okuno, Junichi Ooshimo, Ryuichi Sakamoto | 2016-03-15 |