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:
Sep. 04, 2007
Filed:
Aug. 06, 2004
Applicant:
Kazuhiko Ikeuchi, Takatsuki, JP;
Inventor:
Kazuhiko Ikeuchi, Takatsuki, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A speaker grille is disposed in front of a speaker having a diaphragm and reproducing the sounds of 1 kHz and higher. The speaker grille is provided with a sound opening which includes a sound opening portion that opposes a region extending from the edge portion of a diaphragm to the fixing portion o n the outer circumference of the diaphragm of the speaker. The speaker grille offers superior sound characteristics, and at the same time a sufficient mechanical strength.
Ikeuchi, Kazuhiko. (2007). Speaker grill (U.S. Patent No. 7266211). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7266211
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile