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:
Dec. 06, 2005
Filed:
Sep. 29, 2003
Applicant:
Fumio Akama, Tokyo-To, JP;
Inventor:
Fumio Akama, Tokyo-To, JP;
Assignee:
Nippon Mektron, Ltd., Tokyo-to, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K001/11 ; H01R012/04 ;
U.S. Cl.
CPC ...
Abstract
A multilayered circuit board has good imbedding properties for circuit patterns, and an interlayer insulating material having superior adhesive force and interlayer insulating properties. In a multilayered circuit board wherein interlayer connection is achieved by the contact of minute pointed protrusions, provided on a first conductive circuit layer, with a second conductive circuit layer, interlayer insulation is achieved by a film having a three-layer structure, comprising a thermoplastic film inserted between a pair of thermosetting adhesive layers.