Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12406785 | Anisotropic rare earth sintered magnet and method for producing the same | Kazuki Otsuka, Masayuki Kamata | 2025-09-02 |
| 12272473 | Anisotropic rare earth sintered magnet and method for producing the same | Masayuki Kamata | 2025-04-08 |
| 11791093 | Rare earth permanent magnets and their preparation | Hiroaki Nagata, Takehisa Minowa | 2023-10-17 |
| 11482377 | Rare earth permanent magnets and their preparation | Hiroaki Nagata, Takehisa Minowa | 2022-10-25 |
| 10614952 | Rare earth permanent magnets and their preparation | Hiroaki Nagata, Takehisa Minowa | 2020-04-07 |
| 10167573 | Method of producing SiC single crystal | Norio Yamagata, Takehisa Minowa | 2019-01-01 |
| 10160037 | Rare earth magnet and its preparation | Hiroaki Nagata, Takehisa Minowa | 2018-12-25 |
| 10074477 | Rare earth sintered magnet and making method | Hiroaki Nagata, Yuuji Gouki, Kazuaki Sakaki, Koichi Hirota, Hajime Nakamura | 2018-09-11 |
| 9044810 | Rare earth magnet and its preparation | Hiroaki Nagata, Takehisa Minowa | 2015-06-02 |
| 8557057 | Rare earth permanent magnet and its preparation | Hiroaki Nagata, Takehisa Minowa | 2013-10-15 |
| 8277578 | Rare earth permanent magnet and its preparation | Hiroaki Nagata, Takehisa Minowa | 2012-10-02 |
| 8252123 | Rare earth permanent magnet and its preparation | Hiroaki Nagata, Takehisa Minowa | 2012-08-28 |
| 8025744 | Rare earth permanent magnet and its preparation | Hiroaki Nagata, Takehisa Minowa | 2011-09-27 |
| 7985303 | Rare earth permanent magnet and its preparation | Hiroaki Nagata, Takehisa Minowa | 2011-07-26 |
| 7090730 | R-Fe-B sintered magnet | Takehisa Minowa | 2006-08-15 |
| 6589367 | Anisotropic rare earth-based permanent magnet material | Ken Ohashi | 2003-07-08 |
| 6319334 | Rare earth/iron/boron-based permanent magnet and method for the preparation thereof | Ken Ohashi | 2001-11-20 |
| 6261385 | Magnetically anisotropic rare earth-based nanocomposite permanent magnet | Ken Ohashi | 2001-07-17 |
| 6078237 | Rare earth-based permanent magnet material and method for the preparation thereof | Ken Ohashi, Takehisa Minowa, Yoshio Tawara, Masaru Ito | 2000-06-20 |
| 5976271 | Method for the preparation of rare earth based anisotropic permanent magnet | Masaru Ito, Ken Ohashi | 1999-11-02 |
| 5930582 | Rare earth-iron-boron permanent magnet and method for the preparation thereof | Masaru Ito, Ken Ohashi, Yoshio Tawara, Takehisa Minowa | 1999-07-27 |
| 5514468 | Magneto-optical recording medium | Hideo Kaneko, Katsushi Tokunaga, Yoshio Tawara, Yoshiaki Shimizu | 1996-05-07 |
| 5118573 | Magneto-optical recording medium | Yoshio Tawara, Katsushi Tokunaga, Yoshiaki Shimizu, Yoshihiro Kubota, Meguru Kashida | 1992-06-02 |