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:
Dec. 31, 2024
Filed:
Oct. 14, 2020
Applicant:
Foster Electric Company, Limited, Tokyo, JP;
Inventor:
Kohei Ichikawa, Tokyo, JP;
Assignee:
FOSTER ELECTRIC COMPANY, LIMITED, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 9/02 (2006.01); H04R 7/18 (2006.01);
U.S. Cl.
CPC ...
H04R 9/025 (2013.01); H04R 7/18 (2013.01);
Abstract
A damper has an inner circumference including a curve descending in a bow shape. A wave section extends from the outer circumferential end of the curve to the outer circumference of the damper. The inner circumference of the damper is shorter than the wave section.