Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10121588 | Method and apparatus for preparing rare earth sintered magnet | Mitsuo Kitagawa | 2018-11-06 |
| 10121589 | Method and apparatus for preparing rare earth sintered magnet | Mitsuo Kitagawa | 2018-11-06 |
| 10074477 | Rare earth sintered magnet and making method | Hiroaki Nagata, Yuuji Gouki, Tadao Nomura, Koichi Hirota, Hajime Nakamura | 2018-09-11 |
| 9133100 | Method for synthesizing rare earth metal extractant | Hiroto Sugahara, Tetsuya Kume, Masaki Ohashi, Hirochika Naganawa, Kojiro Shimojo | 2015-09-15 |
| 8889903 | Synthesis of rare earth metal extractant | Hiroto Sugahara, Tetsuya Ohashi, Tetsuya Kume, Masahiko Ikka, Hirochika Naganawa +1 more | 2014-11-18 |
| 8841482 | Method for synthesizing rare earth metal extractant | Hiroto Sugahara, Tetsuya Kume, Masaki Ohashi, Hirochika Naganawa, Kojiro Shimojo | 2014-09-23 |
| 8802040 | Method for extracting and separating light rare earth element | Hiroto Sugahara, Takehisa Minowa | 2014-08-12 |
| 8519184 | Synthesis of rare earth metal extractant | Hiroto Sugahara, Tetsuya Ohashi, Tetsuya Kume, Masahiko Ikka, Hirochika Naganawa +1 more | 2013-08-27 |
| 8177881 | Method for extracting and separating rare earth elements | Hiroto Sugahara, Takehisa Minowa, Hirochika Naganawa, Kojiro Shimojo | 2012-05-15 |
| 7691323 | Rare-earth alloy, rare-earth sintered magnet, and methods of manufacturing | Koji Sato, Takahiro Hashimoto, Hajime Nakamura, Takehisa Minowa | 2010-04-06 |
| 7438768 | Rare earth element sintered magnet and method for producing rare earth element sintered magnet | Masaki Kasashima, Ryuji Hamada, Takehisa Minowa | 2008-10-21 |
| 7211157 | Rare-earth alloy, rare-earth sintered magnet, and methods of manufacturing | Koji Sato, Takahiro Hashimoto, Hajime Nakamura, Takehisa Minowa | 2007-05-01 |
| 6793742 | Preparation of bonded rare earth magnet-forming alloy and bonded rare earth magnet composition | Koji Sato, Takahiro Hashimoto, Takehisa Minowa | 2004-09-21 |
| 6773517 | Rare-earth alloy, rate-earth sintered magnet, and methods of manufacturing | Koji Sato, Takahiro Hashimoto, Hajime Nakamura, Takehisa Minowa | 2004-08-10 |
| 6623541 | Sintered rare earth magnet and making method | Masanobu Shimao, Hajime Nakamura, Takehisa Minowa | 2003-09-23 |