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:
May. 24, 2005
Filed:
Nov. 10, 2003
Applicants:
Shigeru Taga, Nagoya, JP;
Hiroyuki Takahashi, Kasugai, JP;
Inventors:
Shigeru Taga, Nagoya, JP;
Hiroyuki Takahashi, Kasugai, JP;
Assignee:
NGK Spark Plug Co., Ltd., Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B003/00 ;
U.S. Cl.
CPC ...
Abstract
A wiring board including a laminate comprising: a low-temperature fired layer comprising ceramic particles α and a glass component; and a ceramic layer comprising ceramic particles β that do not sinter at the firing temperature of the low-temperature fired layer and a glass component, wherein the ceramic particles β have a mean particle size larger than that of the ceramic particles α and a specific surface area smaller than that of the ceramic particles α.