Issued Patents All Time
Showing 51–75 of 119 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8424189 | Rotary table for permanent magnet rotating machine and method for manufacturing permanent magnet rotating machine | Yuhito Doi, Hideki Kobayashi, Koji Miyata | 2013-04-23 |
| 8420010 | Method for preparing rare earth permanent magnet material | Hajime Nakamura, Koichi Hirota | 2013-04-16 |
| 8377233 | Preparation of rare earth permanent magnet material | Hajime Nakamura, Koichi Hirota | 2013-02-19 |
| 8299676 | Axial gap type coreless rotating machine | Koji Miyata, Hideki Kobayashi, Naoki Watanabe | 2012-10-30 |
| 8277578 | Rare earth permanent magnet and its preparation | Hiroaki Nagata, Tadao Nomura | 2012-10-02 |
| 8269392 | Rotor for permanent magnet rotary machine | Yuhito Doi, Hajime Nakamura, Koichi Hirota | 2012-09-18 |
| 8252123 | Rare earth permanent magnet and its preparation | Hiroaki Nagata, Tadao Nomura | 2012-08-28 |
| 8231740 | Method for preparing rare earth permanent magnet material | Hajime Nakamura, Koichi Hirota | 2012-07-31 |
| 8211327 | Preparation of rare earth permanent magnet material | Hajime Nakamura, Koichi Hirota | 2012-07-03 |
| 8177881 | Method for extracting and separating rare earth elements | Hiroto Sugahara, Kazuaki Sakaki, Hirochika Naganawa, Kojiro Shimojo | 2012-05-15 |
| 8115364 | Permanent magnet generator and wind power generator having a multi-stage rotor and stator | Hideki Kobayashi, Koji Miyata | 2012-02-14 |
| 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 |
| 7740714 | Method for preparing radially anisotropic magnet | Koji Sati, Mitsuo Kitagawa | 2010-06-22 |
| 7691323 | Rare-earth alloy, rare-earth sintered magnet, and methods of manufacturing | Kazuaki Sakaki, Koji Sato, Takahiro Hashimoto, Hajime Nakamura | 2010-04-06 |
| 7626300 | Radial anisotropic cylindrical sintered magnet and permanent magnet motor | Koji Sato | 2009-12-01 |
| 7618496 | Radial anisotropic sintered magnet and its production method, magnet rotor using sintered magnet, and motor using magnet rotor | Koji Sato, Mitsuo Kawabata | 2009-11-17 |
| 7559996 | Rare earth permanent magnet, making method, and permanent magnet rotary machine | Koji Miyata, Koichi Hirota, Hajime Nakamura | 2009-07-14 |