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:
Aug. 20, 1985
Filed:
Jun. 18, 1980
Applicant:
Inventors:
Yasuzo Murata, Kanagawa, JP;
Hiroshi Sato, Kanagawa, JP;
Assignee:
Pilot Man-Nen-Hitsu Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B43L / ;
U.S. Cl.
CPC ...
428117 ; 40449 ; 346 21 ; 3461351 ; 428119 ; 428692 ; 428900 ; 434152 ; 434259 ; 434409 ; 434432 ;
Abstract
A magnetic display panel having a transparent or translucent front substrate and a rear substrate bonded thereto by an adhesive with a dispersing liquid confining space formed between the substrates, preferably in the form of multiple cells. The dispersing liquid, composed of a fine particulate thickener, fine magnetic particles, a colorant and a dispersing medium, has a yield value of at least 5 dyne/cm.sup.2. A clear, long-lasting image is recordable by tracing a permanent magnet upon the face of the first substrate.