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:
Jul. 27, 1999
Filed:
Nov. 09, 1995
Applicant:
Inventors:
Seiichi Anzawa, Nagano, JP;
Hisashi Itoh, Nagano, JP;
Assignee:
Nagano Japan Radio Co., Ltd., Nagano-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ; H01F / ;
U.S. Cl.
CPC ...
336 61 ; 336 83 ; 336200 ; 336232 ;
Abstract
An area on which a coil part is formed on part of a substrate is secured, coil patterns are provided on a plurality of unit substrates corresponding to the area, the coil patterns of the laminated unit substrates are connected by a through hole to form the coil part, thereby resulting in miniaturization, reduction of the number of assembling processes, reduction of cost, noise prevention, and improvement of reliability. Heat radiation patterns are provided in unitary form on the coil patterns to secure a sufficient heat radiation property.