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. 27, 1988
Filed:
May. 09, 1986
Kazuyoshi Watanabe, Tokyo, JP;
Hiroyuki Yoshino, Tokyo, JP;
Junichi Maeda, Tokyo, JP;
Osamu Negishi, Tokyo, JP;
Casio Computer Co., Ltd., Tokyo, JP;
Abstract
A compact electronic calculator having a graph display function of the invention has function keys for inputting functional formulas, a memory for storing an input functional formula, range input keys for inputting range data for variables in the formula, a memory for storing the range data, and a read-only memory (ROM) for storing a control program which sequentially calculates the values of the dependent variable for the independent variable with an ALU in accordance with the functional formula and the range data and which displays the calculated values on a display component.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile