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:
May. 22, 2001
Filed:
Jun. 11, 1999
Toshiyuki Abe, Tokyo, JP;
Norimasa Ishitobi, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
Input-output terminal electrodes,and,are overlaid in both respective edge faces of the multilayer body,of a multilayer filter. Ground electrodes,and,are overlaid on both respective sides of the multilayer body,. Through-hole electrodes,and,for use as a pair of inductance elements are formed in the multilayer body. One ends of the inductance elements are each electrically coupled to the input-output terminal electrodes,and,, the other ends being connected to the conductive layer formed as a sealed electrode,. Paralleled capacitors connected to the inductance elements are formed in the multilayer body,. The ratio W/d of the diameter d of the through-hole electrodes,and,to width W between the ground electrodes,and,on both edge faces of the multilayer body,is set at not less than,and not greater than