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:
Sep. 26, 2023
Filed:
Mar. 31, 2021
Applicant:
Zero Lab Co., Ltd., Tokyo, JP;
Inventor:
Ritsuo Koga, Tokyo, JP;
Assignee:
Zero Lab Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09F 9/37 (2006.01); B43L 1/00 (2006.01); G02F 1/09 (2006.01);
U.S. Cl.
CPC ...
G09F 9/375 (2013.01); B43L 1/008 (2013.01); G02F 1/09 (2013.01); G02F 1/094 (2021.01);
Abstract
A magnetic erasing device including a magnet that includes an S pole and an N pole extending along an axial direction of the magnet, and a rotation mechanism for rotating the magnet in a housing around an axis of the magnet, wherein lines of magnetic force generated around the axis of the magnet during rotation of the magnet are designed to be applied to magnetic particles in the microcapsules to erase a visible image on a magnetic panel when the axis of the magnet is spaced from a surface of the magnetic panel by a predetermined distance.