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:
Feb. 01, 2011
Filed:
Aug. 20, 2007
Itsuo Watanabe, Ibaraki-ken, JP;
Tohru Fujinawa, Ibaraki-ken, JP;
Motohiro Arifuku, Saitama-ken, JP;
Houko Kanazawa, Ibaraki-ken, JP;
Atsushi Kuwano, Ibaraki-ken, JP;
Itsuo Watanabe, Ibaraki-ken, JP;
Tohru Fujinawa, Ibaraki-ken, JP;
Motohiro Arifuku, Saitama-ken, JP;
Houko Kanazawa, Ibaraki-ken, JP;
Atsushi Kuwano, Ibaraki-ken, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Abstract
A circuit-connecting material for interposing between circuit electrodes facing each other and electrically connecting the electrodes, after curing by heat and pressure, either by direct contact or via conductive particles present in the material. The circuit-connecting material features the following essential components: (1) a curing agent capable of generating free radicals upon heating, (2) a phenoxy resin having a weight average molecular weight of 10,000 or more, and that is chemically modified by a carboxyl-group-containing elastomer, and (3) a radical-polymerizable substance.