Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11598369 | Bearing device | Shinichi Oya | 2023-03-07 |
| 9746084 | Magnetic fluid sealing apparatus | — | 2017-08-29 |
| 7950672 | Magnetic fluid sealing device | Kiyoshi Akiyama | 2011-05-31 |
| 6247701 | Magnet proof magnetic fluid sealing device | Masakatsu Kitada | 2001-06-19 |
| 5611250 | Rolling/sliding part | Hiroshi Narai, Satoshi Kadokawa, Hiroshi Iwasa | 1997-03-18 |
| 5456538 | Roller bearing | Toshiharu Honda, Hiroshi Iwasa, Moichi Chiba, Yasuo Murakami, Toshiyuki Yamamoto | 1995-10-10 |