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:
Aug. 26, 2003
Filed:
Nov. 28, 2001
Applicant:
Inventor:
Kenji Masuko, Omihachiman, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03C 1/400 ; B32B 1/800 ;
U.S. Cl.
CPC ...
C03C 1/400 ; B32B 1/800 ;
Abstract
When ceramic electronic parts such as multilayer ceramic substrates that have a substrate body and metal wiring conductors comprising silver are manufactured, a composition comprising not only a borosilicate glass powder and a ceramic powder, but also an additive powder comprising at least one of cerium oxide, bismuth, bismuth oxide, antimony and antimony oxide is used as a composition for preparing the substrate body. Gray discoloration of the substrate body and yellow discoloration in the vicinities of the metal wiring conductors can be prevented.