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:
Dec. 17, 2019
Filed:
Jul. 15, 2015
Sony Corporation, Tokyo, JP;
Yuuji Yamada, Tokyo, JP;
Koyuru Okimoto, Tokyo, JP;
Yoshio Ohashi, Kanagawa, JP;
Toshiyuki Nakagawa, Kanagawa, JP;
SONY CORPORATION, Tokyo, JP;
Abstract
Provided is an acoustic transducer which is used by being fitted into an ear of a listener, is formed in a compact and lightweight shape, and preferably prevents re-reflection of a sound wave. An acoustic transduceris formed of a film-shaped material having an expanding and contracting action and includes a cylindrical acoustic transducing element. The cylindrical acoustic transducing elementalso functions as a sound guide tube. The acoustic transducing elementprevents re-reflection of the sound wave reflected by an eardrum when the sound wave has been generated and prevents localization phenomenon and a feeling of pressure in auditory sense. Also, since the acoustic transducing elementis formed in a compact and lightweight shape, the acoustic transducing elementgenerates the sound wave for directly reaching the eardrum or collects the sound at a place near the eardrum without a feeling of foreign materials in a case where a person wears the acoustic transducing elementthe an ear.