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).

  • Patent number: 8031374
    Abstract: 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: Grant
    Filed: March 28, 2007
    Date of Patent: October 4, 2011
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Takayuki Ohkubo, Kenichi Aso, Yoshihiko Tamura
  • Patent number: 7836825
    Abstract: 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: Grant
    Filed: March 31, 2005
    Date of Patent: November 23, 2010
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yoshihiko Tamura, Kenichi Aso
  • Patent number: 7675533
    Abstract: 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: Grant
    Filed: March 30, 2005
    Date of Patent: March 9, 2010
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yoshihiko Tamura, Kenichi Aso
  • Publication number: 20090161166
    Abstract: 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: Application
    Filed: March 28, 2007
    Publication date: June 25, 2009
    Inventors: Takayuki Ohkubo, Kenichi Aso, Yoshihiko Tamura
  • Publication number: 20080273074
    Abstract: 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: Application
    Filed: March 30, 2005
    Publication date: November 6, 2008
    Inventors: Yoshihiko Tamura, Kenichi Aso
  • Publication number: 20080271632
    Abstract: 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: Application
    Filed: March 31, 2005
    Publication date: November 6, 2008
    Inventors: Yoshihiko Tamura, Kenichi Aso
  • Patent number: 6998213
    Abstract: 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: Grant
    Filed: September 17, 2002
    Date of Patent: February 14, 2006
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Kenichi Aso, Yoshihiko Tamura
  • Patent number: 6819348
    Abstract: 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: Grant
    Filed: September 11, 2002
    Date of Patent: November 16, 2004
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yoshihiko Tamura, Kenichi Aso
  • Patent number: 6797671
    Abstract: 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: Grant
    Filed: December 2, 2002
    Date of Patent: September 28, 2004
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yoshihiko Tamura, Kenichi Aso
  • Publication number: 20030157356
    Abstract: 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: Application
    Filed: December 2, 2002
    Publication date: August 21, 2003
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Yoshihiko Tamura, Kenichi Aso
  • Publication number: 20030138719
    Abstract: 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: Application
    Filed: September 17, 2002
    Publication date: July 24, 2003
    Applicant: Dai Nippon Prtg. Co., Ltd.
    Inventors: Kenichi Aso, Yoshihiko Tamura
  • Publication number: 20030137579
    Abstract: 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: Application
    Filed: September 11, 2002
    Publication date: July 24, 2003
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Yoshihiko Tamura, Kenichi Aso
  • Patent number: 5550098
    Abstract: 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: Grant
    Filed: March 30, 1994
    Date of Patent: August 27, 1996
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Kenichi Aso, Hideaki Sato, Hiroshi Eguchi, Komei Kafuku, Ryohei Takiguchi