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:
Sep. 05, 2000
Filed:
May. 22, 1998
Applicant:
Inventors:
Shigekatsu Yamamoto, Fukui-ken, JP;
Katsuyuki Uchida, Hikone, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ; H01F / ;
U.S. Cl.
CPC ...
336192 ; 336200 ; 336225 ; 336232 ;
Abstract
A multilayer coil has a significantly reduced size but still provides a large inductance and a high Q-value. The multilayer coil includes insulative sheets which are respectively provided with coil conductors and via holes and which are laminated and fired. The coil conductors are electrically connected in series through the via holes so as to form a spiral coil. The via holes are disposed at approximately central portions of the side edge surface at the rear of the multilayer type coil, while the via holes are disposed at approximately central portions of the side edge surface at the front thereof.