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, 2020
Filed:
Mar. 06, 2019
Onkyo Corporation, Osaka, JP;
Takeshi Fujitani, Osaka, JP;
Onkyo Corporation, Osaka, JP;
Abstract
An edge portion of a diaphragm is configured such that multiple recessed ribs formed by recessing of a raised surface are provided in an inclination direction inclined with respect to a radial line passing through a center point and are arranged rotationally symmetrically, and among the recessed ribs and a fixing portion defined on the outermost peripheral side of the diaphragm, defines an outer peripheral edge portion at which no recessed ribs are formed. A voice coil is coupled to a voice coil attachment portion. A lead line is fixed with a first adhesive forming a first adhesive layer along a valley portion defined between a certain recessed rib and an adjacent recessed rib thereof on a back side of the edge portion, and is further fixed with a second adhesive forming a second adhesive layer with the lead line being curved along the outer peripheral edge portion.