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:
Feb. 14, 1978
Filed:
May. 12, 1975
Sharp Kabushiki Kaisha, Osaka, JA;
Abstract
An electronic calculator disclosed herein is comprised mainly of a multi-digit liquid crystal display unit, a mechanical contact type keyboard unit and a semiconductor circuit unit including a computation circuit, logical control circuit, storage circuit, program memory circuit, etc., these units being all incorporated on a single plate of electrically insulating material. One of a pair of spaced apart electrically insulating plates forming a capacity for the liquid crystal composition is of a length sufficient to support all the constitutional units, which has two major surfaces one for supporting the keyboard unit and the other for supporting the semiconductor circuit unit. Connection between oppositely disposed keyboard unit and semiconductor circuit unit is accomplished by any conventional method, for example, multi-terminal connector, conductive material printing, through holes, wire bonding and so on.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile