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:
Jun. 26, 1984
Filed:
May. 06, 1981
Applicant:
Inventors:
Assignees:
TDK Electronics Co., Ltd., Tokyo, JP;
NGK Spark Plug Co., Ltd., Nagoya, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
336221 ; 336100 ; 338 66 ; 315 41 ; 315 58 ; 315 59 ; 315 62 ; 335248 ; 335257 ; 335277 ;
Abstract
A high frequency coil including an inductance device formed by fitting a pair of electrode caps at both ends of a ferrite magnetic core wound by a winding on a peripheral surface of the core; a heat resistant electric insulating coated layer formed on the peripheral surface of the inductance device and a heat resistant electric insulating resilient tube fitted onto the peripheral surface of the coated inductance device.