Linear actuator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9882460
SERIAL NO

15463247

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The linear actuator includes an inner core (2), and an outer core (3) provided outside the inner core in a radial direction while being supported by a pair of flat springs (41 and 42). Permanent magnets (23 and 24) are formed at one of the inner core and the outer core, and magnetic pole portions (31a and 32a) are formed at the other of the inner core and the outer core to face the permanent magnet with predetermined gaps formed therebetween. Spacers (71 and 72) are respectively provided between the inner core and the flat springs, abutting portions are respectively configured by abutting facing surfaces of the spacers and the inner core and facing surfaces of the spacers and the flat springs adjacent to the spacers in the axial direction, and at least an engagement portion including a recess and a protrusion are arranged at the abutting portions.

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Patent Owner(s)

Patent OwnerAddress
SINFONIA TECHNOLOGY CO LTD1-30 SHIBADAIMON 1-CHOME MINATO-KU TOKYO 1058564

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujii, Takayoshi Tokyo, JP 93 587
Fukunaga, Takashi Tokyo, JP 30 325
Nakagawa, Hiroshi Tokyo, JP 252 3848
Onoue, Takashi Tokyo, JP 15 219
Sakai, Yasuhiro Tokyo, JP 63 691

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