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:
Aug. 08, 2017
Filed:
Dec. 29, 2014
Rohm Co., Ltd., Kyoto, JP;
Finewell Co., Ltd., Osaka, JP;
Hiroshi Hosoi, Osaka, JP;
Yoji Hosoi, Osaka, JP;
Masashi Morimoto, Kyoto, JP;
Masahide Tanaka, Osaka, JP;
Rohm Co., Ltd., Kyoto, JP;
Finewell Co., Ltd., Osaka, JP;
Abstract
There is provided is a stereo headphone provided with a pair of earphones having a cartilage conduction unit, a sheath unit connected to the cartilage conduction unit, and a piezoelectric bimorph of a vibration source connected to the cartilage conduction unit covered by the sheath unit without making contact with the inner wall thereof. The cartilage conduction unit is an elastic body. The cartilage conduction unit is in contact with the entrance to the external auditory meatus and has a passage hole in communication with the external auditory meatus. The vibration source is supported by a thick portion on the tragus side at the periphery of the passage hole. In accordance with a more specific feature, the thick portion is provided. The outer shape of the sheath has a thickness in the direction of the earhole that is less than the thickness in the direction orthogonal thereto.