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:
Apr. 24, 2007
Filed:
Apr. 16, 2003
Applicants:
Shinji Tsuchikawa, Shimodate, JP;
Michitoshi Arata, Shimodate, JP;
Kenichi Tomioka, Shimodate, JP;
Kazuhito Kobayashi, Shimodate, JP;
Inventors:
Shinji Tsuchikawa, Shimodate, JP;
Michitoshi Arata, Shimodate, JP;
Kenichi Tomioka, Shimodate, JP;
Kazuhito Kobayashi, Shimodate, JP;
Assignee:
Hitachi Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 27/30 (2006.01); B32B 27/38 (2006.01); C08L 67/00 (2006.01); C08L 25/08 (2006.01); C08L 25/14 (2006.01); C08L 35/00 (2006.01); C08L 45/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a thermosetting resin composition comprising: (1) a metal salt of a disubstituted phosphinic acid, and (2) a resin having a dielectric constant of 2.9 or less at a frequency of 1 GHz or more, and a prepreg and a laminated board using the same.