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:
Jan. 17, 2012
Filed:
Jan. 16, 2007
Okitsugu Furuya, Suginami-ku, JP;
Yosuke Sato, Kasukabe, JP;
Mitsuo Miyata, Machida, JP;
Kabushiki Kaisha Audio-Technica, Tokyo, JP;
Abstract
In headphones in which headphone units are worn on the head via a headband having a predetermined urging force, a substantially constant urging force is always obtained without being influenced by a difference in width and shape of the user's head. In headphonesincluding a headphone unitin which an electroacoustic transducer is incorporated in a housing; and a head wearing means (for example, a headband) for supporting the headphone unitvia a hanger member, the headphone unitbeing held at the ear position of the head in a state of being urged by the head wearing means, the hanger member is a support framearranged around the housingof the headphone unit, and the headphone unitis supported on the support framevia a plurality of constant force spiral springs