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.

Date of Patent:
Jan. 02, 1990

Filed:

Jun. 24, 1988
Applicant:
Inventor:

Hideyuki Kanbayashi, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ; G03B / ;
U.S. Cl.
CPC ...
355243 ; 355 55 ;
Abstract

A copying machine in which copying magnification can be changed comprises a slide lever for selecting an arbitrary copying magnification and a CPU for calculating the copying magnification based on the amount of travel of the slide lever, wherein the CPU controls the copying machine such that the copying operation is carried out at desired prescribed magnification rates regardless of the set position of the slide lever in the equal scale magnification region and in prescribed magnification copying regions which are frequently used and that the copying operation is carried out at a magnification rate corresponding to the set position of the slide lever in particular magnification set regions other than the above described regions.


Find Patent Forward Citations

Kanbayashi, Hideyuki. (1990). Copying machine in which copying magnification can be easily set (U.S. Patent No. 4891670). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4891670

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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