Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5902513 | Magnetic fluid composition | Kazuya Shimizu | 1999-05-11 |
| 5629274 | Lubricating fluid composition for dynamic pressure bearing | Masamichi Hayakawa, Toshihiro Kobayashi, Kazuya Shimizu, Masuhiro Onoyama, Katsumi Nagano | 1997-05-13 |
| 5627147 | Lubricating fluid composition for dynamic pressure bearing | Masamichi Hayakawa, Toshihiro Kobayashi, Kazuya Shimizu, Masuhiro Onoyama, Katsumi Nagano | 1997-05-06 |