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. 20, 1994
Filed:
Mar. 03, 1993
Takeshi Orita, Osaka, JP;
Koji Ijiri, Osaka, JP;
Nishimura Fumikazu, Kyoto, JP;
Chikao Hata, Osaka, JP;
Tatsumi Nakano, Miyazaki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A chip type of noise suppressing filter consists of an almost rectangular solid shaped ferrite core in which a magnetic field is induced, two penetration holes penetrating into a central portion of the ferrite core from a front side thereof to a back side thereof, and a metallic terminal formed of a metallic plate in which an electric current flows across the magnetic field induced in the ferrite core. The metallic terminal consists of two internal terminals inserted into the penetration holes, and two external terminals forcibly fitted on end surfaces of the ferrite core. The internal terminals is connected with each other at the back side of the ferrite core, and the external terminals being connected with the internal terminals at the front side of the ferrite core. Therefore, the electric current flows through one of the external terminals, one of the internal terminals, the other internal terminal, and the other external terminal, in that order. Because the external and internal terminals are formed of the metallic plate, the inductance of the filter is set to a regular value.