Method for producing sintered body that forms rare-earth permanent magnet and has non-parallel easy magnetization axis orientation

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United States of America Patent

PATENT NO 10867729
APP PUB NO 20180130581A1
SERIAL NO

15559652

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Abstract

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Provided is a method for producing a sintered body that forms a rare-earth permanent magnet, has a single sintered structure and an arbitrary shape, and has easy magnetization axis orientations of different directions applied to the magnet material particles in a plurality of arbitrary regions. This method forms a three-dimensional first molded article from a composite material formed by mixing a resin material and magnet material particles containing a rare-earth substance. The first molded article is then subjected to a deforming force and a second molded article is formed in which the orientation direction of the easy magnetization axis of the magnet material particles in at least the one section of the horizontal cross-section is changed to a direction which differs from the orientation direction of the first molded article. The second molded article is heated to a sintering temperature and kept at the temperature for a period of time.

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Patent Owner(s)

Patent OwnerAddress
NITTO DENKO CORPORATIONIBARAKI-SHI OSAKA 567-8680

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ebe, Hirofumi Osaka, JP 29 159
Fujihara, Makoto Osaka, JP 18 182
Fujikawa, Kenichi Osaka, JP 24 146
Hoshino, Toshinobu Osaka, JP 14 92
Imoto, Eiichi Osaka, JP 25 145
Kato, Yuki Osaka, JP 94 925
Kume, Katsuya Osaka, JP 73 454
Matsuda, Tomoya Osaka, JP 20 47
Matsuo, Hiroshi Osaka, JP 67 594
Morimoto, Masakazu Osaka, JP 31 176
Nakabayashi, Katsuyuki Osaka, JP 2 5
Okuno, Toshiaki Osaka, JP 104 624
Omure, Tomohiro Osaka, JP 41 171
Ono, Hirofumi Osaka, JP 47 547
Ouchi, Kazuo Osaka, JP 18 371
Ozeki, Izumi Osaka, JP 49 232
Saito, Shoichiro Osaka, JP 47 132
Yamaguchi, Miho Osaka, JP 35 186
Yamamoto, Takashi Osaka, JP 951 10608

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