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. 24, 1987
Filed:
Jan. 02, 1986
Applicant:
Inventors:
Takanori Shimizu, Hiratsuka, JP;
Masahiko Ikeda, Hiratsuka, JP;
Assignee:
Pilot Man-nen Hitsu Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G01D / ;
U.S. Cl.
CPC ...
346 742 ; 346 743 ; 346 745 ; 3461 / ;
Abstract
An XY plotter apparatus includes a magnetic panel, a writing tool for applying a magnetic field, a writing tool drive and an erasing magnetic field generator. The writing tool consists of an electromagnet which is arranged so that specified characters and figures may be displayed at a high speed on a magnetic panel by the writing tool. Data of a figure to be displayed is inputted into the writing tool drive so as to generate signals for position control and a signal for actuating a switch for a coil inside the electromagnet.