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. 28, 2004
Filed:
May. 30, 2003
Satoshi Arai, Sendai, JP;
Takayuki Inoi, Sendai, JP;
Yoshihiko Saiki, Sendai, JP;
Sadamu Toita, Sendai, JP;
NEC TOKIN Corporation, Sendai, JP;
Abstract
A transmission line type noise filter includes a metal fine wire ( ) made of valve-operational metal and serving as a central conductor, a capacitance forming portion ( ) formed over a predetermined length on the periphery of the metal fine wire, and a conductor layer ( ) formed on the surface of the capacitance forming portion and serving as an external conductor. The capacitance forming portion ( ) includes a sintered body ( ) formed on the metal fine wire and made of the foregoing valve-operational metal, a dielectric film ( ) formed on the surface of the sintered body and serving as a dielectric, and a solid electrolyte layer ( ) formed on the surface of the dielectric film.