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. 23, 2019
Filed:
Aug. 29, 2014
Pioneer Corporation, Tokyo, JP;
Tohoku Pioneer Corporation, Yamagata, JP;
Yoshitaka Junicho, Yamagata, JP;
Kazuyuki Tamaya, Yamagata, JP;
Satoshi Chiba, Yamagata, JP;
Yohji Ogata, Yamagata, JP;
Natsumi Ota, Yamagata, JP;
PIONEER CORPORATION, Tokyo, JP;
TOHOKU PIONEER CORPORATION, Yamagata, JP;
Abstract
A frame is coupled to a magnetic circuit. The frame includes a plurality of holes which are formed outside the coupling portion and opened toward the magnetic circuit. A case covers the magnetic circuit and the frame, and is opened on a sound radiation direction side. An outer circumferential portion of the case is located on the sound radiation direction side beyond the plurality of holes and forms a first gap with respect to the frame. The first gap is communicated with an opening of the case.