Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7465363 | Hard magnetic composition, permanent magnet powder, method for permanent magnet powder, and bonded magnet | Atsushi Sakamoto, Makoto Nakane, Hideki Nakamura | 2008-12-16 |
| 7314531 | R-T-B system rare earth permanent magnet | Chikara Ishizaka, Gouichi Nishizawa, Tetsuya Hidaka, Yoshinori Fujikawa | 2008-01-01 |
| 7311788 | R-T-B system rare earth permanent magnet | Gouichi Nishizawa, Chikara Ishizaka, Tetsuya Hidaka, Yoshinori Fujikawa | 2007-12-25 |
| 7255752 | Method for manufacturing R-T-B system rare earth permanent magnet | Chikara Ishizaka, Gouichi Nishizawa, Tetsuya Hidaka, Nobuya Uchida | 2007-08-14 |
| 7255751 | Method for manufacturing R-T-B system rare earth permanent magnet | Gouichi Nishizawa, Chikara Ishizaka, Tetsuya Hidaka | 2007-08-14 |
| 7192493 | R-T-B system rare earth permanent magnet and compound for magnet | Gouichi Nishizawa, Chikara Ishizaka, Tetsuya Hidaka | 2007-03-20 |
| 6833036 | Rare earth permanent magnet | Makoto Nakane, Eiji Kato, Chikara Ishizaka | 2004-12-21 |
| 6811620 | R-T-B system rare earth permanent magnet | Chikara Ishizaka, Gouichi Nishizawa, Tetsuya Hidaka, Nobuya Uchida | 2004-11-02 |
| 5993939 | Method for preparing permanent magnet material, chill roll, permanent magnet material, and permanent magnet material powder | Hideki Nakamura, Tetsuhito Yoneyama | 1999-11-30 |
| 5916376 | Preparation of magnet | Tomomi Yamamoto, Tetsuhito Yoneyama, Tetsuya Hidaka | 1999-06-29 |
| 5834663 | Sintered magnet and method for making | Hideki Nakamura, Gouichi Nishizawa | 1998-11-10 |
| 5750044 | Magnet and bonded magnet | Tetsuhito Yoneyama, Tomomi Yamamoto, Tetsuya Hidaka | 1998-05-12 |
| 5665177 | Method for preparing permanent magnet material, chill roll, permanent magnet material, and permanent magnet material powder | Hideki Nakamura, Tetsuhito Yoneyama | 1997-09-09 |
| 5641363 | Sintered magnet and method for making | Hideki Nakamura, Gouichi Nishizawa | 1997-06-24 |
| 5309977 | Permanent magnet material and method for making | Tetsuhito Yoneyama, Hideki Nakamura | 1994-05-10 |
| 5209789 | Permanent magnet material and method for making | Tetsuhito Yoneyama, Hideki Nakamura | 1993-05-11 |