YF

Yoshinori Fujikawa

Tdk: 36 patents #87 of 3,796Top 3%
Overall (All Time): #92,736 of 4,157,543Top 3%
36
Patents All Time

Issued Patents All Time

Showing 1–25 of 36 patents

Patent #TitleCo-InventorsDate
12412687 Rare-earth-based magnet powder, bonded magnet, bonded magnet compound, sintered magnet, method of manufacturing rare-earth-based magnet powder, and method of manufacturing rare-earth based permanent magnet Ikuya KOKAWA, Kenichi Suzuki, Yasushi Enokido 2025-09-09
11657934 R-T-B based permanent magnet Yuki Nagamine, Masashi Miwa 2023-05-23
11361888 Samarium-iron-nitrogen magnet powder and method for manufacturing same Shusuke Okada, Kenta Takagi, Yasushi Enokido, Ryuji Hashimoto 2022-06-14
11152142 R-T-B based permanent magnet Yuki Nagamine, Masashi Miwa 2021-10-19
10991493 Rare earth magnet Wakako Okawa, Syota Goto 2021-04-27
10984929 Rare earth magnet Wakako Okawa, Syota Goto 2021-04-20
10748685 R-T-B based sintered magnet Masashi Miwa 2020-08-18
10748686 R-T-B based sintered magnet Masashi Miwa 2020-08-18
10734143 R-T-B based sintered magnet Masashi Miwa 2020-08-04
10726980 Rare earth magnet Wakako Okawa, Syota Goto 2020-07-28
10546672 Rare earth based magnet Eiji Kato, Taeko Tsubokura, Chikara Ishizaka, Katsuo Sato 2020-01-28
10453595 Rare earth permanent magnet Tetsuya Hidaka, Yuki Nagamine 2019-10-22
10256016 Rare earth based magnet Yuki Nagamine, Wakako Okawa, Chikara Ishizaka, Eiji Kato, Katsuo Sato 2019-04-09
10242777 Alloy for R-T-B based sintered magnet and R-T-B based sintered magnet Makoto Iwasaki, Tetsuya Hidaka, Takuma Hayakawa, Ayato Kakoki, Syota Goto +3 more 2019-03-26
10109402 Rare earth based magnet Eiji Kato, Taeko Tsubokura, Chikara Ishizaka, Katsuo Sato 2018-10-23
10096412 Rare earth based magnet Eiji Kato, Taeko Tsubokura, Chikara Ishizaka, Katsuo Sato 2018-10-09
10090087 Rare earth based magnet Yuki Nagamine, Wakako Okawa, Chikara Ishizaka, Eiji Kato, Katsuo Sato 2018-10-02
10083783 Rare earth based magnet Yuki Nagamine, Wakako Okawa, Chikara Ishizaka, Eiji Kato, Katsuo Sato 2018-09-25
10020099 Rare earth based magnet Eiji Kato, Taeko Tsubokura, Chikara Ishizaka, Katsuo Sato 2018-07-10
9548149 Rare earth based magnet Eiji Kato, Taeko Tsubokura, Chikara Ishizaka, Katsuo Sato 2017-01-17
9548157 Sintered magnet, motor, automobile, and method for producing sintered magnet Makoto Iwasaki, Ryota Kunieda, Fumitaka Baba, Satoshi Tanaka 2017-01-17
9548148 R-T-B based sintered magnet Ryota Kunieda, Takuma Hayakawa, Tetsuya Chiba, Kenichi Nishikawa 2017-01-17
8981888 Magnetic body Kenichi Suzuki 2015-03-17
8715854 Active material with a surface-modified layer covering a metal oxide core and an electrode and battery comprising the same Hisashi Suzuki, Masato Kurihara, Yoshitomo Tanaka, Hiroshi Chihara 2014-05-06
7919007 Ferrite magnetic material Yoshihiko Minachi, Noboru Ito, Yuuki Aburakawa, Satoko Ueda 2011-04-05