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:
Apr. 29, 2025
Filed:
Sep. 24, 2021
Foster Electric Company, Limited, Tokyo, JP;
Yoshikazu Okazaki, Tokyo, JP;
Tatsushi Sasanuma, Tokyo, JP;
Takafumi Asukagawa, Tokyo, JP;
Yusuke Chiba, Tokyo, JP;
Hajime Goto, Tokyo, JP;
Akira Hara, Tokyo, JP;
Ken Yamakami, Tokyo, JP;
FOSTER ELECTRIC COMPANY, LIMITED, Tokyo, JP;
Abstract
A weight with optimum weight and high strength can be easily manufactured and the vibration actuator with excellent vibration characteristic is provided. The vibration actuator is formed by a casingwith cylindrical shape, a coilprovided in the casing, and a moverthat vibrates along an vibration-axis direction of the casing. The moverincludes a mover body and a weight fixed to the mover body. A protrusionprotruding toward an opening of the casingis provided at a central portion of the mover body, and a recesswhich is recessed toward the opening of the casingis provided at the central portion of the weight. The mover body and the weightis fixed in a state in which the protrusionis inserted into the recess