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. 20, 1988
Filed:
Jul. 24, 1987
Applicant:
Inventors:
Shun-ichi Numata, Hitachi, JP;
Koji Fujisaki, Hitachi, JP;
Noriyuki Kinjo, Hitachi, JP;
Junichi Imaizumi, Hitachi, JP;
Yoshikatsu Mikami, Shimodate, JP;
Assignees:
Hitachi, Ltd., Tokyo, JP;
Hitachi Chemical Co., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428209 ; 428435 ; 428458 ; 4284735 ; 428688 ; 428901 ; 428364 ;
Abstract
A resin material comprising a polyamide having as chemical structural unit at least one aromatic ring which can rotate around its molecular axis but has no flexibility at another direction, said polyimide being oriented at least at a uniaxial direction, has a low thermal expansion coefficient and can be shaped together with an inorganic material into one body to give a composite shaped article.