Issued Patents All Time
Showing 76–100 of 119 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7531933 | Permanent magnet rotating machine | Koji Miyata, Hajime Nakamura, Koichi Hirota | 2009-05-12 |
| 7520941 | Functionally graded rare earth permanent magnet | Hajime Nakamura, Koichi Hirota, Masanobu Shimao | 2009-04-21 |
| 7488393 | Rare earth permanent magnet | Hajime Nakamura, Koichi Hirota, Masanobu Shimao | 2009-02-10 |
| 7488395 | Functionally graded rare earth permanent magnet | Hajime Nakamura, Koichi Hirota, Masanobu Shimao | 2009-02-10 |
| 7488394 | Rare earth permanent magnet | Hajime Nakamura, Koichi Hirota, Masanobu Shimao | 2009-02-10 |
| 7485193 | R-FE-B based rare earth permanent magnet material | Koichi Hirota | 2009-02-03 |
| 7438768 | Rare earth element sintered magnet and method for producing rare earth element sintered magnet | Kazuaki Sakaki, Masaki Kasashima, Ryuji Hamada | 2008-10-21 |
| 7355305 | Small-size direct-acting actuator | Hajime Nakamura | 2008-04-08 |
| 7333298 | Magnetic head actuator and magnetic disk drive using the same | Hajime Nakamura | 2008-02-19 |
| 7211157 | Rare-earth alloy, rare-earth sintered magnet, and methods of manufacturing | Kazuaki Sakaki, Koji Sato, Takahiro Hashimoto, Hajime Nakamura | 2007-05-01 |
| 7204891 | Remelting of rare earth magnet scrap and/or sludge, magnet-forming alloy, and sintered rare earth magnet | Koichi Hirota | 2007-04-17 |
| 7201809 | Radial anisotropic ring magnet and method of manufacturing the ring magnet | Koji Sato, Mitsuo Kawabata | 2007-04-10 |
| 7157395 | Crucible for melting rare earth element alloy and rare earth element alloy | Takahiro Hashimoto, Fukuji Matsumoto | 2007-01-02 |
| 7156928 | Corrosion-resistant rare earth element magnet | Ryuji Hamada | 2007-01-02 |
| 7090730 | R-Fe-B sintered magnet | Tadao Nomura | 2006-08-15 |
| 7006332 | Disk drive comprising suspension for magnetic head with positioning of slider to predetermined track through oscillation of voice coil motor | Hajime Nakamura | 2006-02-28 |
| 6984270 | Radial anisotropic sintered magnet and its production method, magnet rotor using sintered magnet, and motor using magnet rotor | Koji Sato, Mitsuo Kawabata | 2006-01-10 |
| 6960240 | Remelting of rare earth magnet scrap and/or sludge, magnet-forming alloy, and sintered rare earth magnet | Koichi Hirota | 2005-11-01 |
| 6942741 | Iron alloy strip for voice coil motor magnetic circuits | Masanobu Shimao, Masaaki Nishino | 2005-09-13 |
| 6879468 | Magnetic head actuator having an improved microactuator oscillatably supported by metallic micro-beams | Hajime Nakamura | 2005-04-12 |
| 6793742 | Preparation of bonded rare earth magnet-forming alloy and bonded rare earth magnet composition | Kazuaki Sakaki, Koji Sato, Takahiro Hashimoto | 2004-09-21 |
| 6777097 | Corrosion resistant rare earth magnet and its preparation | Ryuji Hamada | 2004-08-17 |
| 6773517 | Rare-earth alloy, rate-earth sintered magnet, and methods of manufacturing | Kazuaki Sakaki, Koji Sato, Takahiro Hashimoto, Hajime Nakamura | 2004-08-10 |
| 6746545 | Preparation of rare earth permanent magnets | Kazuo Tamura, Masanobu Shimao, Ryuji Hamada | 2004-06-08 |
| 6633100 | Permanent magnet motor and rotor thereof | Koji Sato, Koji Miyata | 2003-10-14 |