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. 13, 2004
Filed:
Aug. 30, 2001
Youichi Gotoh, Sizuoka, JP;
Yoshio Imahori, Sizuoka, JP;
Yoshiharu Oishi, Shizuoka, JP;
Kazuyasu Ono, Shizuoka, JP;
Star Micronics Co., Ltd., Shizuoka, JP;
Abstract
An electroacoustic transducer ( ) includes a base ( ) and magnetic core ( ) a diaphragm ( ) supported with a gap between the diaphragm and a forward end of the magnetic core, a magnet ( ) constituting a magnetic circuit together with the base ( ), the magnetic core ( ) and the diaphragm ( ) a coil ( ) disposed around the magnetic core a coil bobbin ( ) for holding the coil ( ), a housing ( ) for receiving the above-mentioned members, a filler ( ) applied to an external surface side of the base ( ), and lead terminals ( and ) for supplying an electric current. The lead terminals ( and ) have protrusion portions ( and , protruding into an internal surface side of the base ( ) in the axial direction of the coil. A coil wire ( ) is wound around the protrusion portions ( and ) so as to be connected to the lead terminals ( and ).