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:
Nov. 13, 2018
Filed:
Nov. 30, 2017
Alps Electric Co., Ltd., Ota-ku, Tokyo, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A vibration generating device has a vibration generating member that causes vibration in a vibration direction, a vibration transmitting member, and a base body. The vibration generating member has a first yoke and a second yoke spaced in the vibration direction so as to face each other, a coil that generates magnetism, and a support body that supports the first yoke. A first gap is formed between the first vibration-side opposite surface of the first yoke and the second vibration-side opposite surface of the second yoke; these surfaces face each other in the vibration direction. A second gap is formed between the first orthogonal-side opposite surface of the first yoke and the second orthogonal-side opposite surface of the second yoke; these surfaces face each other in an orthogonal direction orthogonal to the vibration direction. The first gap is narrower than the second gap.