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. 22, 1995
Filed:
May. 14, 1992
Hiroshi Yoneda, Katsuta, JP;
Kaoru Uchiyama, Ibaraki, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi AUtomotive Engineering Co., Ltd., Ibaraki, JP;
Abstract
A noise removing apparatus wherein a .pi. filter is constructed by a pair of feedthrough ceramic capacitors and a lead for connecting the feedthrough ceramic capacitors to each other to improve the radio wave trouble resistance of an electronic equipment and remove a shielding casing. Electrodes are formed on the both sides of a dielectric plate having a plurality of through holes by plating or the like, the electrode on one side is divided into plural ones in correspondence to the number of the through holes, resist portions are formed on the electrode on the other side so as to be in one-to-one correspondence to the through holes to provide a plurality of feedthrough ceramic capacitors, and an arbitrary pair of electrodes on one side are connected to each other through an inductive lead passing through the associated through holes, thereby to construct a .pi. filter.