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:
Oct. 27, 1992
Filed:
Feb. 28, 1991
Applicant:
Inventors:
Youhei Ishikawa, Nagaokakyo, JP;
Takekazu Okada, Nagaokakyo, JP;
Keiji Okamura, Nagaokakyo, JP;
Takashi Kawanami, Nagaokakyo, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P / ;
U.S. Cl.
CPC ...
333-11 ; 174 521 ; 333 242 ;
Abstract
A non-reciprocal circuit element which includes a case, a circuit element main body provided in the case including central conductors disposed to intersect each other in an electrically insulated state and matching circuitry, and ferrite members disposed to confront the central conductors so as to impress a d.c. magnetic field. The case is made of an insulative resin, and covered by electrode films formed to constitute at least part of the circuit element main body and terminals for the central conductors.