Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11469016 | R-T-B based sintered magnet | Ayato Kakoki, Makoto Iwasaki, Takuma Hayakawa | 2022-10-11 |
| 10964463 | Alloy for R—T—B based rare earth sintered magnet and method for producing the R—T—B based rare earth sintered magnet | Takuma Hayakawa, Makoto Iwasaki, Eiji Kato, Hidetake Kitaoka | 2021-03-30 |
| 10878981 | R-T-B based permanent magnet | Hidetake Kitaoka, Eiji Kato | 2020-12-29 |
| 10848023 | Motor containing a permanent magnet having high and low temperature side permanent magnet parts | Hidetake Kitaoka, Makoto Iwasaki, Eiji Kato, Takuma Hayakawa | 2020-11-24 |
| 10825589 | R-T-B based rare earth magnet | Makoto Iwasaki, Eiji Kato, Takuma Hayakawa, Hidetake Kitaoka | 2020-11-03 |
| 10755840 | R-T-B based sintered magnet | Takuma Hayakawa, Makoto Iwasaki, Ayato Kakoki | 2020-08-25 |
| 10748683 | R-T-B based sintered magnet | Takuma Hayakawa, Makoto Iwasaki, Ayato Kakoki, Naoto TSUKAMOTO, Fumitaka Baba | 2020-08-18 |
| 10453595 | Rare earth permanent magnet | Yuki Nagamine, Yoshinori Fujikawa | 2019-10-22 |
| 10242777 | Alloy for R-T-B based sintered magnet and R-T-B based sintered magnet | Makoto Iwasaki, Takuma Hayakawa, Ayato Kakoki, Yoshinori Fujikawa, Syota Goto +3 more | 2019-03-26 |
| 10026532 | R-T-B based sintered magnet | Takuma Hayakawa, Makoto Iwasaki, Ayato Kakoki | 2018-07-17 |
| 9773599 | R-T-B based sintered magnet | Masashi Miwa, Haruna Nakajima, Ken NISHIKAWA, Jun Hagiwara, Chikara Ishizaka | 2017-09-26 |
| 9514869 | R-T-B based sintered magnet | Masashi Miwa, Haruna Nakajima, Ken NISHIKAWA, Jun Hagiwara, Chikara Ishizaka | 2016-12-06 |
| 9177705 | Sintered rare earth magnet, method of producing the same, and rotating machine | Kazuo Sato, Kazuya Sakamoto, Shinya Fujito, Motoaki Hosako, Motohisa Murata +1 more | 2015-11-03 |
| 7955442 | Method for producing sintered magnet and alloy for sintered magnet | Chikara Ishizaka | 2011-06-07 |
| 7462403 | R-T-B system permanent magnet | Hironari Okada, Kazuya Sakamoto, Takeshi Sakamoto, Yasuyuki Nakayama, Tomomi Yamamoto | 2008-12-09 |
| 7314531 | R-T-B system rare earth permanent magnet | Chikara Ishizaka, Gouichi Nishizawa, Akira Fukuno, Yoshinori Fujikawa | 2008-01-01 |
| 7311788 | R-T-B system rare earth permanent magnet | Gouichi Nishizawa, Chikara Ishizaka, Akira Fukuno, Yoshinori Fujikawa | 2007-12-25 |
| 7255751 | Method for manufacturing R-T-B system rare earth permanent magnet | Gouichi Nishizawa, Chikara Ishizaka, Akira Fukuno | 2007-08-14 |
| 7255752 | Method for manufacturing R-T-B system rare earth permanent magnet | Chikara Ishizaka, Gouichi Nishizawa, Akira Fukuno, Nobuya Uchida | 2007-08-14 |
| 7199690 | R-T-B system rare earth permanent magnet | Kazuya Sakamoto, Kazuo Sato, Hironari Okada | 2007-04-03 |
| 7192493 | R-T-B system rare earth permanent magnet and compound for magnet | Gouichi Nishizawa, Chikara Ishizaka, Akira Fukuno | 2007-03-20 |
| 6811620 | R-T-B system rare earth permanent magnet | Chikara Ishizaka, Gouichi Nishizawa, Akira Fukuno, Nobuya Uchida | 2004-11-02 |
| 6696223 | Method for performing photolithography | Yawara Kaneko | 2004-02-24 |
| 6674934 | Pressure-actuated bi-stable optical switching | Kent W. Carey, You Kondoh, Mitsuchika Saito, Tsutomu Takenaka | 2004-01-06 |
| 5916376 | Preparation of magnet | Akira Fukuno, Tomomi Yamamoto, Tetsuhito Yoneyama | 1999-06-29 |