The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 13, 2026
Filed:
Jun. 29, 2023
Yuki Otsuka, Tokyo, JP;
Yasutaka Kitamura, Tokyo, JP;
Masaharu Kagami, Tokyo, JP;
Yuki Takahashi, Tokyo, JP;
Kai Masamoto, Tokyo, JP;
Yuki Otsuka, Tokyo, JP;
Yasutaka Kitamura, Tokyo, JP;
Masaharu Kagami, Tokyo, JP;
Yuki Takahashi, Tokyo, JP;
Kai Masamoto, Tokyo, JP;
MITSUMI ELECTRIC CO., LTD., Tokyo, JP;
Abstract
A rotary reciprocating drive actuator includes: a movable body including a shaft part to which a magnet is fixed and being capable of performing a reciprocating rotation around an axis; a base portion including a pair of wall portions for supporting the shaft part via a bearing such that the shaft part is rotatable; a core assembly including: a core body having a plurality of magnetic poles facing an outer circumference of the magnet to sandwich the magnet, a coil body wound around the core body and energized to cause a reciprocating rotation of the movable body, and a magnet position holding portion generating a magnetic attraction force between the magnet position holding portion and the magnet to define a reference position of the reciprocating rotation; and a preload applying part externally fitted to the shaft part and configured to apply a preload to the bearing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile