Abstract: A method for manufacturing a magnetic recording medium comprising a first step in which a first magnetic layer, having a repetitive magnetization pattern formed by a magnetic head over its entire surfaces is formed on a base layer. The base layer and the first magnetic layer together form a first laminated body. In a second step, a second magnetic layer in which magnetic particles are oriented in a predetermined direction and which is thermally magnetizable is formed on a second base layer. The second base layer and the second magnetic layer form a second laminated body. In a third step, the second laminated body is bonded to the first laminated body.

Abstract: In a magnetically recording and erasing the magnetic latent image on the magnetic recording medium, the magnetic recording medium includes a base layer, a first magnetic layer in which a repetitive magnetic pattern is in advance formed, and a second magnetic layer on which the magnetic latent image to be formed is thermo-magnetically formed. A method of erasing the magnetic latent image on the second magnetic layer includes the steps of simultaneously applying an external magnetic field and heat to be thermally magnetized layer of a magnetic recording medium.

Abstract: The present invention relates to a thermomagnetic recording apparatus in which a chemical compound material the Curie point of which varies in response to a ratio of chemical combination in chemical compound constituent is utilized as a magnetic material for its magnetic recording medium, and the Curie temperature is set higher than the ambient temperature by a prescribed value on the ratio of chemical combination determined, thereby resulting in printing at a relatively low temperature and precision of printing in a prescribed degree.

Abstract: Magnetic recording arrangement, for example, in a thermomagnetographic plain-paper printer, produces a latent magnetic image on a magnetic recording medium which is composed of a ferromagnetic layer, first magnetized along a predetermined direction before forming the latent magnetic image, and a magnetic layer of high permeability to be converted into a paramagnetic layer by being subjected to the heat from a heating head until the layer is heated to its Curie point or above. The magnetic layers are respectively laminated to opposite sides of a base layer, the heating head being placed at the opposite side of the base layer from the ferromagnetic layer so as to remain out of contact with the ferromagnetic layer, thus making the cleaning of the heating head substantially unnecessary while keeping the latent magnetic image of high quality.

Abstract: A method of thermo-magnetic recording employs a recording medium of a magnetization material disposed on an insulator. An area on the medium is joule-heated via the application of a voltage across contacting electrodes up to a bias point, and a heat pattern is applied in the form of an image to form a magnetic latent image.

Abstract: A magnetic recording medium for use in recording a magnetic latent image includes a high permeability layer having a low Curie point and a magnetic recording layer formed thereover. In use, the high permeability layer is selectively heated to the Curie point, so as to allow a magnetic signal to pass therethrough and be recorded on the recording layer.

Abstract: A magnetic copying method and apparatus reads data from originals and records them in a ferromagnetic, image memory bearer. The master latent images formed on the image memory bearer are transferred from the memory bearer onto a ferromagnetic recording body as slave magnetic latent images, and, subsequently, these slave magnetic latent images are developed with toner into toner images so that they can be transferred onto transferring materials. Subsequently, the toner images on the transferring materials are fixed. The image memory bearer can be rewound after all the data contained in it have been transferred onto the transferring material so that additional copies can easily be made.

Abstract: A thermomagnetic printer includes a recording unit for storing a latent image in which there are provided a magnetic recording layer providing thermomagnetic effect when placed in magnetic field with temperature graduation on one side of a photoconductive layer and a transparent electrically conductive layer on the other side.When storing a latent image in the magnetic recording layer, light which emits corresponding to the image to be reproduced on a paper is irradiated onto the photoconductive layer through the transparent electrically conductive layer while applying magnetic field to the magnetic recording layer and supplying electricity between the magnetic recording layer and the electrically conductive layer, whereby irradiated part of the photoconductive layer and the corresponding part of the magnetic recording layer are heated by Joule heat effect and the latter is magnetized by the thermomagnetic effect.

Abstract: This invention provides a magnetic printer which permits substantially thorough removal of the residual developing agent from the magnetic latent image carrier or the photoreceptor's surface after the stage of image transfer even when the developing agent in use has high specific resistance and excels in both transfer property and developing property.

Abstract: A method for manufacturing a magnetic recording medium wherein a first magnetic layer having a repetitive magnetization pattern is formed on a base layer, an intermediate layer of non-magnetic material is formed over the first magnetic layer, and a second magnetic layer in which magnetic particles are orientated in a predetermined direction is formed on the intermediate layer.

Abstract: A thin film magnetic recording head and process for fabricating it is disclosed. The magnetic recording head has a core with a gap the same length as the width of an original document to be produced and is positioned in contact with a moving magnetic recording medium and perpendicular to the direction of movement thereof. A high magnetic permeable body is disposed in the gap of the head core and is in contact with the magnetic recording medium. A heat generation body of the same length as the high magnetic permeable body is positioned in contact therewith. Means for selectively heating segments of the heat generation body corresponding to the width of a picture element is provided.

Abstract: A combination thermal and magnetic recording head is advantageously designed such that the heat generating resistor elements forming the thermal device are incorporated with the magnetic head device. Specifically, the thermal head may be incorporated in the air gap of the magnetic device.

Abstract: A method of erasing a magnetic latent image includes the steps of simultaneously applying an external magnetic field and heat to a thermally magnetized layer of a magnetic recording medium.

Abstract: A magnetic recording medium for use in recording a magnetic latent image includes a high permeability layer having a low Curie point and a magnetic recording layer formed thereover. In use, the high permeability layer is selectively heated to the Curie point, so as to allow a magnetic signal to pass therethrough and be recorded on the recording layer.

Abstract: Silicone rubber is employed as an outer coating material on a fuser member and is applied to the base member by means of a novel construction which prevents the separation of the outer silicone rubber coating from the roll even when silicone oil is applied thereto. The fuser member comprises a base member, a layer of a heat-resistant resin formed on the base member and a layer of a silicone rubber formed on the heat-resistant resin layer, the silicone rubber being vulcanized after the formation of the layer of silicone rubber on the resin layer. A primer layer may be used between the heat-resistant resin layer and the silicone rubber layer.

Abstract: Silicone rubber is employed as a coating material on a fuser member and adhered to the base member by means of a novel polysiloxane composition. The novel polysiloxane composition comprises specified quantities of two moieties of organopolysiloxane, an allyl ester of a polybasic acid, an aliphatic salt of a metal, and a silane, and strongly adheres the silicone rubber outer layer to the base member or core even when silicone oil is used as a release agent on the fuser member.