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:
Jul. 31, 1984
Filed:
Jun. 17, 1982
Masaru Yamanoi, Kawasaki, JP;
Hiroshi Satoh, Kawasaki, JP;
Nippon Columbia Kabushikikaisha, Tokyo, JP;
Abstract
A head phone is disclosed, which includes a pair of housings, each holding therein an electro-acoustic transducer, a head band being extendable and shrinkable, a pair of supporting members, each being curved in substantially inverse L-shape with each other and supporting at its one end one of the pair of housings, and a pair of pivotally supporting members, each being fixed with one of both ends of the head band and pivotally supporting the other end of one of the pair of supporting members in such a manner that each of the supporting members is rotatable around its lengthwise direction and also rotatable against the extending direction of the head band.