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. 15, 2007
Filed:
May. 10, 2004
Applicants:
Shuta Kihara, Kanagawa, JP;
Ko Kedo, Tokyo, JP;
Inventors:
Shuta Kihara, Kanagawa, JP;
Ko Kedo, Tokyo, JP;
Assignee:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The metal foil-clad laminate of the present invention comprises at least one polyimide layer made of a polyimide having repeating units represented by the following formula I: wherein R and Φ are as defined in the specification, at least one insulating substrate, and at least one metal foil layer. The polyimide is excellent in thermopress-bonding property, solubility in solvents and heat resistance, and exhibits a low dielectric constant. The metal foil-clad laminate having the polyimide layer is suitably applicable to high-frequency printed wiring boards, etc.