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. 20, 2026
Filed:
Jan. 04, 2024
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Mitsukazu Kuze, Osaka, JP;
Tetsushi Itano, Osaka, JP;
Ryouichi Uemoto, Osaka, JP;
Hiroyuki Morimoto, Osaka, JP;
PANASONIC AUTOMOTIVE SYSTEMS CO., LTD., Kanagawa, JP;
Abstract
A diaphragm including at least a first portion, a second portion, and a third portion that are arranged around a predetermined reference axis extending in a vibration direction, and each have a different cross-sectional shape along a plane that includes the reference axis, in which the cross-sectional shape of the first portion is an arc having a first radius of curvature, the cross-sectional shape of the second portion is an arc having a second radius of curvature different from the first radius of curvature, and the cross-sectional shape of the third portion is a part of an ellipse.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile