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:
Apr. 26, 1988
Filed:
Oct. 27, 1986
Takemi Yamamoto, Nagoya, JP;
Isao Kawano, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Aichi, JP;
Abstract
A thermo-magnetic recording device wherein a magnetized latent image is produced on a magnetic layer by locally heating the magnetic layer. The device includes a heat-generating ribbon for generating heat upon energization thereof, at least one working electrode movable relative to the magnetic layer in a recording direction, and relative to the heat-generating ribbon in sliding contact with the heat-generating ribbon, such that the at least one working electrode locally holds the heat-generating ribbon in contact with the magnetic layer, a deive for effecting a relative movement between the ribbon and the at least one working electrode, and at least one auxiliary electrode placed in direct or indirect contact with the heat-generating ribbon. An electric current is applied between the at least one working electrode and the at least one auxiliary electrode, to energize a local portion of the heat-generating ribbon which is currently in contact with the magnetic layer, thereby causing the energized portion of the heat-generating ribbon to generate heat for locally heating the magnetic layer to produce the magnetized latent image on the magnetic layer.