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:
Jun. 21, 1983
Filed:
Jul. 09, 1979
Applicant:
Inventors:
Masafumi Yoshida, Iwaki, JP;
Kenichi Nakamura, Iwaki, JP;
Assignee:
Kureha Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
428 77 ; 310311 ; 310340 ; 310364 ; 310367 ; 310800 ; 3461351 ; 427100 ; 428209 ; 428212 ; 428421 ; 428458 ; 428462 ; 428480 ; 428910 ;
Abstract
A data recording sheet in which data signals are stored in a polarizable macromolecular material sheet layer with polarization different locally in the direction of the surfaces of said sheet layer. The sheet layer causes pyroelectric or piezo-electric polarization through polarization operation, and the data signals thus stored are reproduced in a pyroelectric or piezo-electric mode. The polarizable macromolecular material sheet layer is laminated through a thin intermediate electrode layer on a macromolecular substrate layer whose Young's modulus is greater than that of the sheet layer.