Patents by Inventor Masafumi Hayashi
Masafumi Hayashi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6650481Abstract: A lens sheet of the present invention comprises: a lens layer having a plurality of unit lenses, each of which is adapted to fully reflect a part of an incident light beam on a fully reflecting portion so as to emit it from a light emitting portion, arranged in a one- or two-dimensional direction on a light emitting side; and reflection attenuating layers for reflecting the light beam incident from an incident light side and attenuating the light beam incident from the light emitting side, the reflection attenuating layers being formed of a material, which can form the layers via a vacuum film forming method, on the fully reflecting portion.Type: GrantFiled: April 15, 2002Date of Patent: November 18, 2003Assignee: Dai Nippon Printing Co., Ltd.Inventors: Futoshi Osawa, Kumpei Oda, Takanori Oboshi, Masafumi Hayashi
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Publication number: 20030179274Abstract: The present invention provides an image displaying medium with a metallic image, which comprises a metallic image formed on a transfer receiving material with a color image formed thereon, wherein the metallic image is formed by using a thermal transfer sheet in which at least a resinous peelable layer and a metal thin layer are provided on one surface of a substrate film in this order, the resinous peelable layer comprising a pigment and a thermoplastic resin having a glass transition temperature of 60° C. or higher and the metal thin layer comprising a composition containing an aluminum pigment prepared by forming an aluminum film by deposition on a carrier sheet with a releasing layer provided thereon, and peeling the aluminum film from the carrier sheet to finely divide it, and a binder of a thermoplastic resin having a glass transition temperature of 50 to 150° C.Type: ApplicationFiled: March 11, 2003Publication date: September 25, 2003Inventors: Daigo Morizumi, Masafumi Hayashi
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Patent number: 6534154Abstract: Disclosed is an image-receiving sheet having better toner-fixing ability, an excellent image quality and high carriage quality in electrophotographic copying machines and printers. In an image-receiving sheet in which a layer containing a binder and a filler is formed on one surface of a substrate 1, the Beck smoothness of the containment layer is 2000 seconds or less and the haze of the image-receiving sheet is 5 to 15% to stabilize the carriage quality and to obtain a high quality image from OHP projectors. The containment layer is either one of a receptor layer 2 for recording an image or a backface layer 3 and in the image-receiving sheet, a layer having a Beck smoothness of 20000 seconds or less is formed on the surface opposite to the surface of the substrate 1 on which the containment layer is formed, thereby further bettering the carriage quality.Type: GrantFiled: December 15, 1999Date of Patent: March 18, 2003Assignee: Dai Nippon Printing Co., Ltd.Inventors: Masafumi Hayashi, Nobuho Ikeuchi
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Patent number: 6524760Abstract: An image receiving sheet includes a substrate and a receptor layer. The substrate has at least one face, the receptor layer has a binder resin, and the receptor layer is provided on the face of the substrate. The binder resin of the receptor layer has storage elasticity moduli of 104 Pa or more at 130° C. and 102 Pa or more at 200° C.Type: GrantFiled: December 15, 1999Date of Patent: February 25, 2003Assignee: Dai Nippon Printing Co., Ltd.Inventors: Nobuho Ikeuchi, Masafumi Hayashi
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Publication number: 20030002159Abstract: A lens sheet of the present invention comprises: a lens layer having a plurality of unit lenses, each of which is adapted to fully reflect a part of an incident light beam on a fully reflecting portion so as to emit it from a light emitting portion, arranged in a one- or two-dimensional direction on a light emitting side; and reflection attenuating layers for reflecting the light beam incident from an incident light side and attenuating the light beam incident from the light emitting side, the reflection attenuating layers being formed of a material, which can form the layers via a vacuum film forming method, on the fully reflecting portion.Type: ApplicationFiled: April 15, 2002Publication date: January 2, 2003Inventors: Futoshi Osawa, Kumpei Oda, Takanori Oboshi, Masafumi Hayashi
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Publication number: 20020182532Abstract: The present invention uses a thermal transfer film in combination with a thermally sensitive color developing paper. The hue of the thermal transfer ink layer or the hue of the developed color of the color developing paper can be recorded on the color developing paper when the applied energy is low, and a plurality of colors can be recorded on the color developing paper by color mixture of the transfer from the thermal transfer ink layer and the developed color of the color developing paper when the applied energy is high.Type: ApplicationFiled: June 26, 2002Publication date: December 5, 2002Inventor: Masafumi Hayashi
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Patent number: 6455221Abstract: The present invention uses a thermal transfer film in combination with a thermally sensitive color developing paper. The hue of the thermal transfer ink layer or the hue of the developed color of the color developing paper can be recorded on the color developing paper when the applied energy is low, and a plurality of colors can be recorded on the color developing paper by color mixture of the transfer from the thermal transfer ink layer and the developed color of the color developing paper when the applied energy is high.Type: GrantFiled: December 6, 2000Date of Patent: September 24, 2002Assignee: Dai Nippon Printing Co., Ltd.Inventor: Masafumi Hayashi
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Patent number: 6444383Abstract: The present invention provides an image receiving sheet applicable to an over head projector (OHP) and a process for forming an OHP image. The image receiving sheet is capable of forming a yellow image providing a parallel-ray transmittance (Y) of 50% or more when the transmittance density (X) is in a range from 0 to 1.0 by electrophotography. The image receiving sheet is capable of forming a yellow image providing a haze value (Z) of 40% or less when the transmittance density (X) is in a range from 0 to 1.0 by electrophotography.Type: GrantFiled: January 26, 2001Date of Patent: September 3, 2002Assignee: Dai Nippon Printing Co., Ltd.Inventors: Nobuho Ikeuchi, Masafumi Hayashi
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Patent number: 6410199Abstract: An image receiving sheet is provided for superior image reproduction. The image receiving sheet include a substrate and a receptor layer over at least one side of said substrate. The receptor layer includes a resin binder. The storage elasticity modulus of the resin binder is equal to or greater than 106 Pa at temperatures below about 40° C. and substantially satisfies the following relationships: G′130/G′200≦9.0 and G′130≦103 Pa, where G′130 is the storage elasticity modulus of the resin binder at 130° C. and G′200 is the storage elasticity modulus of the resin binder at 200° C.Type: GrantFiled: October 29, 1999Date of Patent: June 25, 2002Assignee: Dai Nippon Printing Co., Ltd.Inventors: Nobuho Ikeuchi, Masafumi Hayashi
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Publication number: 20020061391Abstract: The present invention provides a thermal transfer sheet, which comprises a substrate file and a metallic layer disposed on one side of the substrate film, the metallic layer being comprising leaf-shaped aluminum powder. The preferable leaf-shaped aluminum powder is obtainable via a process in which an aluminum film is formed by a vapor deposition on a peelability facilitating surface of a carrier sheet, the aluminum film is peeled off the carrier sheet and finely divided. Using the thermal transfer sheet, it is possible to produce a printed product having a high metallic luster and hiding property and excellent in qualities including design, appearance or decoration. Furthermore, it is not expensive to produce the thermal transfer sheet of the present invention.Type: ApplicationFiled: September 28, 2001Publication date: May 23, 2002Inventors: Masafumi Hayashi, Nobuho Ikeuchi, Daigo Morizumi
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Publication number: 20020039641Abstract: Disclosed is an image forming method comprising the steps of: providing a print output by a nonsilver photographic color hard copy recording system; providing a protective layer transfer sheet comprising a thermally transferable protective layer having a single or multi-layer structure separably provided on a substrate sheet; putting the print and the protective layer transfer sheet on top of each other and thermally transferring the protective layer onto an image in the print so as to cover at least the printed portion in the print; and separating the substrate sheet from the protective layer transfer sheet.Type: ApplicationFiled: August 3, 2001Publication date: April 4, 2002Inventors: Masafumi Hayashi, Nobuho Ikeuchi, Yoshinori Kamikubo
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Publication number: 20020029713Abstract: A scratch layer transfer sheet comprising a substrate film and a transferable scratch layer disposed on one surface of the substrate film, the transferable scratch layer comprising a hiding layer, being able to be thermally transferred to the print surface of a transfer-receiving material and being able to be removed from the print surface by scratching it after it is transferred. The scratch layer transfer sheet is overlapped on a transfer-receiving material such that the transferable scratch layer faces the print surface of the transfer-receiving material to transfer said transferable scratch layer to the print surface by heating.Type: ApplicationFiled: July 10, 2001Publication date: March 14, 2002Inventors: Daigo Morizumi, Keiji Hirose, Masafumi Hayashi, Nobuho Ikeuchi, Mikio Asajima
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Publication number: 20010044031Abstract: The present invention provides an image receiving sheet applicable to an over head projector (OHP) and a process for forming an OHP image. The image receiving sheet is capable of forming a yellow image providing a parallel-ray transmittance (Y) of 50% or more when the transmittance density (X) is in a range from 0 to 1.0 by electrophotography. The image receiving sheet is capable of forming a yellow image providing a haze value (Z) of 40% or less when the transmittance density (X) is in a range from 0 to 1.0 by electrophotography.Type: ApplicationFiled: January 26, 2001Publication date: November 22, 2001Inventors: Nobuho Ikeuchi, Masafumi Hayashi
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Patent number: 6317148Abstract: The invention relates to a thermal transfer sheet including a thermally transferable ink layer on one surface of a substrate film, wherein said ink layer contains a coloring agent, and a decoloring agent that prevents thermal color-developing paper from color development or makes the color, once developed thereby, invisible; a thermal transfer sheet including on one surface of a substrate film a first thermally transferable ink layer containing a decoloring agent that prevents thermal color-developing paper from color development or makes the color, once developed thereby, invisible, wherein at least one second thermal transfer ink layer is interposed between said ink layer and said substrate film; and a thermal transfer recording method that uses these thermal transfer sheets.Type: GrantFiled: June 18, 1999Date of Patent: November 13, 2001Assignee: Dai Nippon Printing Co., Ltd.Inventors: Masafumi Hayashi, Shunichi Ebihara
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Patent number: 6312789Abstract: A recording sheet of the present invention comprises a substrate film, a receptor layer for retaining a toner image and a release layer for releasing the receptor layer from a fixing surface of a fixing means, the receptor layer and the release layer being disposed on at least one side of the substrate film in this order from a position of the substrate film, wherein the release layer contains a release agent having compatibility to toner and releasing ability to the fixing surface. A preferable release agent is wax, particularly wax having a polar group in its molecular structure, such as carnauba wax and candelilla wax. The recording sheet of the present invention can provide a high quality of the toner image with no occurrence of fusion to the fixing surface and cohesive failure of the receptor layer even when the thermal fixing is carried out with no oil supplied to the fixing surface of the fixing means.Type: GrantFiled: January 27, 1999Date of Patent: November 6, 2001Assignee: Dai Nippon Printing Co., Ltd.Inventors: Masafumi Hayashi, Noritaka Egashira
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Publication number: 20010004509Abstract: The present invention uses a thermal transfer film in combination with a thermally sensitive color developing paper. The hue of the thermal transfer ink layer or the hue of the developed color of the color developing paper can be recorded on the color developing paper when the applied energy is low, and a plurality of colors can be recorded on the color developing paper by color mixture of the transfer from the thermal transfer ink layer and the developed color of the color developing paper when the applied energy is high.Type: ApplicationFiled: December 6, 2000Publication date: June 21, 2001Inventor: Masafumi Hayashi
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Patent number: 6203890Abstract: A co-winding type thermal transfer sheet is constituted by forming on one surface side of a substrate film a heat-fusible ink layer comprising a pigment and a particulate binder, and causing a tracing paper to be peelably bonded onto the heat-fusible ink layer by the medium of an adhesive layer. The thus constituted co-winding type thermal transfer sheet is capable of providing an original image which can be reproduced by use of a blueprint process so as to provide blueprint images having a high precision and a high contrast. In addition, a co-winding type thermal transfer sheet may also be constituted by forming a heat-fusible ink layer on one surface side of a substrate film and causing a transparent resin sheet to be peelably bonded onto the heat-fusible ink layer by the medium of an adhesive layer containing a cross-linking agent. The thus constituted co-winding type thermal transfer sheet is capable of providing an image excellent in wear resistance on the transparent resin sheet.Type: GrantFiled: February 8, 2000Date of Patent: March 20, 2001Assignee: DAI Nippon Printing Co., Ltd.Inventors: Hirokatsu Imamura, Masafumi Hayashi, Kouichi Nakamura, Hirokazu Kaneko, Shigeki Umise, Kenichiro Suto, Hiromi Watanabe
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Patent number: 6120893Abstract: The present invention provides an image receiving sheet having a good conveyance property in an electrophotographic copier or printer, having no flaw or dirt and having a superior image quality, characterized in that the image receiving sheet includes an image receiving layer 3 on one surface of a substrate 2 and a backing layer on other surface of the substrate 2 and that the backing layer includes a binder, a component of a silicon containing compound and a particle.Type: GrantFiled: December 1, 1998Date of Patent: September 19, 2000Assignee: Dai Nippon Printing Co., Ltd.Inventors: Shinichi Kurokawa, Masafumi Hayashi
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Patent number: 6063538Abstract: An image receiving sheet is provided which can offer good toner fixation and stably provide excellent image quality, has no significant dependency upon environmental conditions, has constant surface electric resistivity, and can be used also in electrophotography wherein no silicone oil is used at the time of fixation of the toner. Provision of a receptive layer 2 provided on at least one side of a substrate 1, the receptive layer 2 comprising a thermoplastic resin and a conductive material not utilizing ionic conduction, can provide an image receiving sheet 4 that has antistatic properties and surface electric resistivity which are stable against a fluctuation in environmental conditions around the image receiving sheet.Type: GrantFiled: October 23, 1998Date of Patent: May 16, 2000Assignee: Dai Nippon Printing Co., Ltd.Inventors: Masafumi Hayashi, Noritaka Egashira
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Patent number: 6043191Abstract: A co-winding type thermal transfer sheet is constituted by forming on one surface side of a substrate film a heat-fusible ink layer comprising a pigment and a particulate binder, and causing a tracing paper to be peelably bonded onto the heat-fusible ink layer by the medium of an adhesive layer. The thus constituted co-winding type thermal transfer sheet is capable of providing an original image which can be reproduced by use of a blueprint process so as to provide blueprint images having a high precision and a high contrast.In addition, a co-winding type thermal transfer sheet may also be constituted by forming a heat-fusible ink layer on one surface side of a substrate film and causing a transparent resin sheet to be peelably bonded onto the heat-fusible ink layer by the medium of an adhesive layer containing a cross-linking agent. The thus constituted co-winding type thermal transfer sheet is capable of providing an image excellent in wear resistance on the transparent resin sheet.Type: GrantFiled: May 18, 1999Date of Patent: March 28, 2000Assignee: Dai Nippon Printing Co., Ltd.Inventors: Hirokatsu Imamura, Masafumi Hayashi, Kouichi Nakamura, Hirokazu Kaneko, Shigeki Umise, Kenichiro Suto, Hiromi Watanabe