Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684076 | Rare earth-iron-nitrogen based magnetic material and method of manufacturing the same | Kiyoshi Kojima | 1997-11-04 |
| 5628568 | Dynamic pressure bearing having large load-carrying capacity and preventing damage of opposite surface and method of manufacturing the same | Yasuo Takamura | 1997-05-13 |
| 5609695 | Method for producing alloy powder of the R.sub.2 T.sub.17 system, a method for producing magnetic powder of the R.sub.2 T.sub.17 N.sub.x system, and a high pressure heat-treatment apparatus | Kiyoshi Kojima | 1997-03-11 |