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:
Jul. 30, 2019
Filed:
Feb. 01, 2017
Nidec Seimitsu Corporation, Ueda-shi, Nagano-ken, JP;
Zendi Mori, Ueda, JP;
Mitsuru Murata, Ueda, JP;
NIDEC SEIMITSU CORPORATION, Nagano, JP;
Abstract
A base portion of a vibration motor includes a first plate including a first plate recessed portion in an upper surface thereof; and a second plate arranged in the first plate recessed portion, and fixed to the first plate. One of the first and second plates is made of a magnetic metal, while another one is made of a nonmagnetic metal. An upper surface of the second plate is arranged at the same level as that of a portion of the upper surface of the first plate which lies adjacent to and along the first plate recessed portion. The second plate includes an annular second plate support portion centered on a central axis; and a plurality of second plate projecting portions arranged to project radially inward or radially outward from the second plate support portion, and arranged in a circumferential direction at a position vertically opposed to a magnet portion.