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. 21, 2023
Filed:
May. 09, 2022
Kuraray Co., Ltd., Kurashiki, JP;
Tatsuya Sunamoto, Chiyoda-ku, JP;
Xianwen Zhang, Chiyoda-ku, JP;
KURARAY CO., LTD., Kurashiki, JP;
Abstract
Provided is an acoustic diaphragm with required properties for a vibrating part and an edge part thereof. The acoustic diaphragm comprises a vibrating partand an edge partlocated at an outer periphery of the vibrating part, wherein the vibrating part comprises a thermoplastic liquid crystal polymer (TLCP) having a certain composition; the edge part comprises a TLCP having a same composition as the TLCP of the vibrating part; and the vibrating partand the edge parthave elastic moduli Eand Emeasured by nanoindentation technique, respectively, which satisfy the following formula: E>E. For example, a ratio E/Eof the elastic modulus Eof the vibrating partto the elastic modulus Eof the edge partmay fall within a range of from 1.05 to 5.0.