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:
May. 08, 2012
Filed:
Aug. 07, 2008
Applicants:
Masaaki Tanaka, Yokohama, JP;
Makoto Ito, Yokohama, JP;
Kunimitsu Okamura, Yokohama, JP;
Yuzuko Sasaki, Yokohama, JP;
Inventors:
Masaaki Tanaka, Yokohama, JP;
Makoto Ito, Yokohama, JP;
Kunimitsu Okamura, Yokohama, JP;
Yuzuko Sasaki, Yokohama, JP;
Assignee:
Victor Company of Japan, Ltd., Kanagawa-Ken, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04R 25/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A headphone set has at least one speaker unit and a housing that encloses the speaker unit. The housing has an elastic protruding portion having a cavity therein. A sound-emitting portion is formed as protruding from a vibrating zone of the speaker unit.