Patents by Inventor Kenichi Aso
Kenichi Aso 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: 8031374Abstract: A control section 9 of a thermal printer 1 performs CMYK/RGB-gray conversion, gradation conversion, halftone conversion for an input image data 3, and performs shift processing and rotation processing in accordance with the resolution and the number of lines of the thermal printer 1. The control section 9 performs heat-accumulation correction processing for the image data subjected to the halftone processing, and the image data subjected to the shift processing and the rotation processing, and then prints a hairline image. When a circular hairline is printed, the control section 9 defines a pattern of circular hairlines, and produces a horizontal hairline pattern.Type: GrantFiled: March 28, 2007Date of Patent: October 4, 2011Assignee: Dai Nippon Printing Co., Ltd.Inventors: Takayuki Ohkubo, Kenichi Aso, Yoshihiko Tamura
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Patent number: 7836825Abstract: A method of controlling the luminance of a transmissive board at the moment of transmissive illumination by providing the steps of determining a criterion number of ink transfers by roughly controlling the luminance of the highest luminance at the moment of transmissive illumination to closely reflect the lowest transmissive luminance on the board, determining the criterion area-ratio by the minor control of the luminance on the board so that the higher luminance most closely reflects the luminance of the lowest luminance on the board, and equalizing the luminance of all luminance on the board so that all luminance is controlled to be the lowest luminance of the transmissive board at the time of transmissive illumination by a light source by the transfer of ink according to a prepared processing number. Also provided is the transmissive board wherein the transmissive luminance is controlled by the method of the invention.Type: GrantFiled: March 31, 2005Date of Patent: November 23, 2010Assignee: Dai Nippon Printing Co., Ltd.Inventors: Yoshihiko Tamura, Kenichi Aso
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Patent number: 7675533Abstract: A thermal transfer printer for film capable of thermal transfer printing on a plastic film. The thermal transfer printer for film is provided with a conveyance for conveying the plastic film along a predetermined path, an ink ribbon moving mechanism which includes a holder for holding a plurality of ink ribbons 11 and moves an ink ribbon selected arbitrarily from the plurality of ink ribbons to a print position arranged on the predetermined path, and a print head which prints on the plastic film by heating the ink ribbon moved to the print position.Type: GrantFiled: March 30, 2005Date of Patent: March 9, 2010Assignee: Dai Nippon Printing Co., Ltd.Inventors: Yoshihiko Tamura, Kenichi Aso
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Publication number: 20090161166Abstract: A control section 9 of a thermal printer 1 performs CMYK/RGB-gray conversion, gradation conversion, halftone conversion for an input image data 3, and performs shift processing and rotation processing in accordance with the resolution and the number of lines of the thermal printer 1. The control section 9 performs heat-accumulation correction processing for the image data subjected to the halftone processing, and the image data subjected to the shift processing and the rotation processing, and then prints a hairline image. When a circular hairline is printed, the control section 9 defines a pattern of circular hairlines, and produces a horizontal hairline pattern.Type: ApplicationFiled: March 28, 2007Publication date: June 25, 2009Inventors: Takayuki Ohkubo, Kenichi Aso, Yoshihiko Tamura
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Publication number: 20080273074Abstract: A thermal transfer printer for film capable of thermal transfer printing on a plastic film. The thermal transfer printer for film is provided with a conveyance for conveying the plastic film along a predetermined path, an ink ribbon moving mechanism which includes a holder for holding a plurality of ink ribbons 11 and moves an ink ribbon selected arbitrarily from the plurality of ink ribbons to a print position arranged on the predetermined path, and a print head which prints on the plastic film by heating the ink ribbon moved to the print position.Type: ApplicationFiled: March 30, 2005Publication date: November 6, 2008Inventors: Yoshihiko Tamura, Kenichi Aso
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Publication number: 20080271632Abstract: A method for controlling luminance of a transmissive board at the moment of transmissive illumination, in a short time, at a low cost. The luminance of a control object is made the target luminance by a rough control step of printing ink having a constant light transmittance on a front side or a back side of the control object in a transmissive board. The rough control step is repeated a number times within a range such that the luminance does not exceed the target luminance. The ink is printed on the front side or the back side by controlling the amount of the ink to be printed to a unit area in accordance with a luminance difference between the target luminance and the control luminance which is not eliminated in the rough control step.Type: ApplicationFiled: March 31, 2005Publication date: November 6, 2008Inventors: Yoshihiko Tamura, Kenichi Aso
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Patent number: 6998213Abstract: There are provided a thermal transfer film which can yield an image formed object possessing excellent fastness or resistance properties such as excellent abrasion resistance and lightfastness, has good sensitivity in transfer, and is free from blocking during storage in a roll form, a thermal transfer recording medium, and a method for image formation using them. The thermal transfer film comprises: a substrate; and one or a plurality of layers provided on one side of the substrate, the one or plurality of layers including at least a thermal transfer layer, the thermal transfer layer being located on the uppermost surface of the thermal transfer film, the thermal transfer layer comprising at least two polyester resins different from each other in number average molecular weigh.Type: GrantFiled: September 17, 2002Date of Patent: February 14, 2006Assignee: Dai Nippon Printing Co., Ltd.Inventors: Kenichi Aso, Yoshihiko Tamura
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Patent number: 6819348Abstract: There are provided a thermal transfer film which can yield a thermally transferred print possessing excellent fastness or resistance properties such as excellent abrasion resistance, lightfastness, and alteration preventive property, is less likely to cause damage to an object, is free from a deterioration in quality of the print, and does not incur an increase in production cost, a method for image formation using the thermal transfer film, and an image formed object. The thermal transfer film according to the present invention comprises a substrate and one or a plurality of layers including a thermal transfer layer provided on one side of the substrate, the thermal transfer layer being located on the uppermost surface of the thermal transfer film, a convex being provided on a part of the thermal transfer layer.Type: GrantFiled: September 11, 2002Date of Patent: November 16, 2004Assignee: Dai Nippon Printing Co., Ltd.Inventors: Yoshihiko Tamura, Kenichi Aso
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Patent number: 6797671Abstract: There are provided a method for image formation which can produce an image formed object possessing excellent fastness or resistance properties such as excellent abrasion resistance, lightfastness, and alteration preventive properties, is less likely to cause damage to an object, is free from a deterioration in image quality, and does not incur an increase in production cost, and an image formed object. In the method for image formation, an intermediate transfer recording medium comprising a substrate and a light transparent protective layer provided on the substrate, and a first thermal transfer recording medium comprising a substrate and a light transparent ink layer provided on the substrate are first provided. The intermediate transfer recording medium and the first thermal transfer recording medium are put on top of each other. The assembly is imagewise heated to form a light transparent image on the light transparent protective layer in the intermediate transfer recording medium.Type: GrantFiled: December 2, 2002Date of Patent: September 28, 2004Assignee: Dai Nippon Printing Co., Ltd.Inventors: Yoshihiko Tamura, Kenichi Aso
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Publication number: 20030157356Abstract: There are provided a method for image formation which can produce an image formed object possessing excellent fastness or resistance properties such as excellent abrasion resistance, lightfastness, and alteration preventive properties, is less likely to cause damage to an object, is free from a deterioration in image quality, and does not incur an increase in production cost, and an image formed object. In the method for image formation, an intermediate transfer recording medium comprising a substrate and a light transparent protective layer provided on the substrate, and a first thermal transfer recording medium comprising a substrate and a light transparent ink layer provided on the substrate are first provided. The intermediate transfer recording medium and the first thermal transfer recording medium are put on top of each other. The assembly is imagewise heated to form a light transparent image on the light transparent protective layer in the intermediate transfer recording medium.Type: ApplicationFiled: December 2, 2002Publication date: August 21, 2003Applicant: Dai Nippon Printing Co., Ltd.Inventors: Yoshihiko Tamura, Kenichi Aso
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Publication number: 20030138719Abstract: There are provided a thermal transfer film which can yield an image formed object possessing excellent fastness or resistance properties such as excellent abrasion resistance and lightfastness, has good sensitivity in transfer, and is free from blocking during storage in a roll form, a thermal transfer recording medium, and a method for image formation using them. The thermal transfer film comprises: a substrate; and one or a plurality of layers provided on one side of the substrate, the one or plurality of layers including at least a thermal transfer layer, the thermal transfer layer being located on the uppermost surface of the thermal transfer film, the thermal transfer layer comprising at least two polyester resins different from each other in number average molecular weigh.Type: ApplicationFiled: September 17, 2002Publication date: July 24, 2003Applicant: Dai Nippon Prtg. Co., Ltd.Inventors: Kenichi Aso, Yoshihiko Tamura
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Publication number: 20030137579Abstract: There are provided a thermal transfer film which can yield a thermally transferred print possessing excellent fastness or resistance properties such as excellent abrasion resistance, lightfastness, and alteration preventive property, is less likely to cause damage to an object, is free from a deterioration in quality of the print, and does not incur an increase in production cost, a method for image formation using the thermal transfer film, and an image formed object. The thermal transfer film according to the present invention comprises a substrate and one or a plurality of layers including a thermal transfer layer provided on one side of the substrate, the thermal transfer layer being located on the uppermost surface of the thermal transfer film, a convex being provided on a part of the thermal transfer layer.Type: ApplicationFiled: September 11, 2002Publication date: July 24, 2003Applicant: Dai Nippon Printing Co., Ltd.Inventors: Yoshihiko Tamura, Kenichi Aso
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Patent number: 5550098Abstract: An object of the present invention is to provide a thermal transfer sheet wherein a clear image having a sufficient density is formed in a thermal transfer process using a sublimable dye and wherein the formed image exhibits excellent fastnesses, particularly excellent light fastness.The present invention is directed to a thermal transfer sheet comprising a base sheet and a dye-containing layer formed on the one surface of the base sheet wherein a dye included in the dye-containing layer comprises a mixture of two or more specific dyes.Type: GrantFiled: March 30, 1994Date of Patent: August 27, 1996Assignee: Dai Nippon Printing Co., Ltd.Inventors: Kenichi Aso, Hideaki Sato, Hiroshi Eguchi, Komei Kafuku, Ryohei Takiguchi