Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5993939 | Method for preparing permanent magnet material, chill roll, permanent magnet material, and permanent magnet material powder | Akira Fukuno, Hideki Nakamura | 1999-11-30 |
| 5916376 | Preparation of magnet | Akira Fukuno, Tomomi Yamamoto, Tetsuya Hidaka | 1999-06-29 |
| 5750044 | Magnet and bonded magnet | Tomomi Yamamoto, Tetsuya Hidaka, Akira Fukuno | 1998-05-12 |
| 5665177 | Method for preparing permanent magnet material, chill roll, permanent magnet material, and permanent magnet material powder | Akira Fukuno, Hideki Nakamura | 1997-09-09 |
| 5309977 | Permanent magnet material and method for making | Hideki Nakamura, Akira Fukuno | 1994-05-10 |
| 5229219 | Magnetic recording medium comprising a magnetic layer containing a specified magnetic ferrite powder and having a curie temperature up to 180.degree. C. | Hideharu Moro, Shigeo Satoh, Osamu Kohmoto, Shohei Mimura, Haruyuki Takahashi +1 more | 1993-07-20 |
| 5209789 | Permanent magnet material and method for making | Hideki Nakamura, Akira Fukuno | 1993-05-11 |
| 5049208 | Permanent magnets | Koichi Yajima, Osamu Kohmoto | 1991-09-17 |
| 5022939 | Permanent magnets | Koichi Yajima, Osamu Kohmoto | 1991-06-11 |
| 4836868 | Permanent magnet and method of producing same | Kohichi Yajima, Osamu Kohmoto | 1989-06-06 |
| 4213803 | R.sub.2 Co.sub.17 Rare type-earth-cobalt, permanent magnet material and process for producing the same | Shiro Tomizawa, Tetsuo Hori, Teruhiko Ojima | 1980-07-22 |
| 4210471 | Permanent magnet material and process for producing the same | Tetsuo Hori, Teruhiko Ojima | 1980-07-01 |