Issued Patents 2011
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8075707 | Method for preparing rare earth permanent magnet material | Hajime Nakamura, Koichi Hirota | 2011-12-13 |
| 8025744 | Rare earth permanent magnet and its preparation | Hiroaki Nagata, Tadao Nomura | 2011-09-27 |
| 8012269 | Nd-Fe-B rare earth permanent magnet material | Kenji Yamamoto, Koichi Hirota | 2011-09-06 |
| 7988795 | R-T-B—C rare earth sintered magnet and making method | Koichi Hirota | 2011-08-02 |
| 7985303 | Rare earth permanent magnet and its preparation | Hiroaki Nagata, Tadao Nomura | 2011-07-26 |
| 7955443 | Method for preparing rare earth permanent magnet material | Hajime Nakamura, Koichi Hirota | 2011-06-07 |
| 7948135 | Radial anisotropic sintered magnet and its production method, magnet rotor using sintered magnet, and motor using magnet rotor | Koji Sato, Mitsuo Kawabata | 2011-05-24 |
| 7922832 | Method for preparing permanent magnet material | Hajime Nakamura | 2011-04-12 |
| 7883587 | Method for preparing rare earth permanent magnet | Hajime Nakamura, Koichi Hirota | 2011-02-08 |