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:
Nov. 17, 1987
Filed:
Feb. 12, 1986
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A manual information input device allows the user to manually enter desired information using a readily available writing instrument such as a pencil rather than a specially designated input stylus such as a light pen or an electromagnetic pen. The manual information input device comprises a substrate supporting electrodes on one surface thereof, an input panel disposed in facing relation to the substrate and supporting electrodes in confronting relation to the electrodes on the substrate, a spacer disposed between the substrate and the flexible input panel and defining a closed space therebetween, and an electrically insulating material sealed in the space. The input panel is resilient. The electrodes on the substrate and the input panel jointly constitute a pixel matrix. The electrically insulating material comprises a liquid and/or a group of particles.