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.:

US 8319111 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 27, 2012

Filed:

Oct. 02, 2007
Applicants:

Hajime Saiki, Aichi, JP;

Mikiya Sakurai, Gufu, JP;

Atsuhiko Sugimoto, Gifu, JP;

Inventors:

Hajime Saiki, Aichi, JP;

Mikiya Sakurai, Gufu, JP;

Atsuhiko Sugimoto, Gifu, JP;

Assignee:

NGK Spark Plug Co., Ltd., Aichi-ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/03 (2006.01);
U.S. Cl.
CPC ...
Abstract

A wiring board having a favorable electrical reliability and in which a crack is unlikely to occur at a connection interface of via conductors even though the number of via conductors in series, which constitutes the stacked via, becomes larger than that of a conventional wiring board.


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