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.

Date of Patent:
Dec. 14, 2010

Filed:

May. 31, 2005
Applicants:

Koichi Kawamura, Kanagawa, JP;

Takeyoshi Kano, Kanagawa, JP;

Inventors:

Koichi Kawamura, Kanagawa, JP;

Takeyoshi Kano, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention provides a multi-layer circuit board sequentially having an insulating substrate, a first electrically conductive pattern arbitrarily formed, an insulating material layer and a second electrically conductive pattern formed by providing an electrically conductive material on a graft polymer pattern formed on the insulating material layer, and having an electrically conductive path which electrically connects the first electrically conductive pattern present on the insulating substrate and the second electrically conductive pattern. The graft polymer pattern includes a combination of a region where a graft polymer is present and a region where no graft polymer is present, or a combination of a region where a hydrophilic graft polymer is present and a region where a hydrophobic graft polymer is present.


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