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:
Jan. 18, 1994
Filed:
Mar. 27, 1992
Applicant:
Inventors:
Assignee:
Matsushita Electric Works, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; C08G / ;
U.S. Cl.
CPC ...
4283133 ; 4283139 ; 428458 ; 4284735 ; 428325 ; 528310 ; 528322 ;
Abstract
A polyimide composition is prepared with a polyimide containing minute hollow spherules made of a glass of a hydroxyl group content and having less than 0.5 mg/m.sup.2. A multilayer substrate for printed-wiring is prepared with this polyimide composition. The substrate possesses a low dielectric constant, dielectric dissipation factor and thermal expansion coefficient.
Ogasawara, Kenji. (1994). Polyimide composition and prepreg and laminate thereof (U.S. Patent No. 5279895). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5279895
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile