Patents by Inventor Yoshimi Ikezawa

Yoshimi Ikezawa 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: 8623785
    Abstract: Provided is a thermal recording material comprising an intermediate layer and a heat-sensitive recording layer for color formation by heat stacked in this order onto a support, the thermal recording material being characterized in that the intermediate layer contains a bellows-shaped hollow resin and that the roughness of the surface on the color forming side is 1.0 ?m or less as measured by Parker Print Surf. The method for producing such a thermal recording material comprises the steps of: applying a coating liquid containing heat-expandable resin particles to a support, drying the coated support at a temperature lower than the expansion starting temperature of the heat-expandable resin particle, and subjecting the coated support to thermoforming for formation of an intermediate layer; and applying, to the intermediate layer, heat-sensitive recording-related components which contribute to color formation by heat, for formation of a heat-sensitive recording layer.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: January 7, 2014
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Nobuko Takahama, Takao Masuda, Yoshimi Ikezawa, Takahito Ochiai, Shinichiro Matsumoto, Yohei Uesugi
  • Publication number: 20130053240
    Abstract: Provided is a thermal recording material comprising an intermediate layer and a heat-sensitive recording layer for color formation by heat stacked in this order onto a support, the thermal recording material being characterized in that the intermediate layer contains a bellows-shaped hollow resin and that the roughness of the surface on the color forming side is 1.0 ?m or less as measured by Parker Print Surf. The method for producing such a thermal recording material comprises the steps of: applying a coating liquid containing heat-expandable resin particles to a support, drying the coated support at a temperature lower than the expansion starting temperature of the heat-expandable resin particle, and subjecting the coated support to thermoforming for formation of an intermediate layer; and applying, to the intermediate layer, heat-sensitive recording-related components which contribute to color formation by heat, for formation of a heat-sensitive recording layer.
    Type: Application
    Filed: March 28, 2011
    Publication date: February 28, 2013
    Applicant: MITSUBISHI PAPER MILLS LIMITED
    Inventors: Nobuko Takahama, Takao Masuda, Yoshimi Ikezawa, Takahito Ochiai, Shinichiro Matsumoto, Yohei Uesugi
  • Patent number: 8288313
    Abstract: A thermal recording material comprises a support and a thermal recording layer formed thereon, the thermal recording layer containing an electron-donating dye precursor and an electron-receiving developer that causes said dye precursor to develop a color, wherein said thermal recording layer contains vapor-phase synthesis silica, preferably, the vapor-phase synthesis silica has a specific surface area, measured by a BET method, of 50 to 200 m2/g and further is doped with aluminum oxide, and the thermal recording layer further contains the above vapor-phase synthesis silica and a diphenyl sulfones-bridged type compound, and the thermal recording material is excellent in anti-sticking property and image stability.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: October 16, 2012
    Assignee: Mitsubishi Paper Mills Limited
    Inventor: Yoshimi Ikezawa
  • Publication number: 20100069240
    Abstract: A thermal recording material comprises a support and a thermal recording layer formed thereon, the thermal recording layer containing an electron-donating dye precursor and an electron-receiving developer that causes said dye precursor to develop a color, wherein said thermal recording layer contains vapor-phase synthesis silica, preferably, the vapor-phase synthesis silica has a specific surface area, measured by a BET method, of 50 to 200 m2/g and further is doped with aluminum oxide, and the thermal recording layer further contains the above vapor-phase synthesis silica and a diphenyl sulfones-bridged type compound, and the thermal recording material is excellent in anti-sticking property and image stability.
    Type: Application
    Filed: February 13, 2008
    Publication date: March 18, 2010
    Inventor: Yoshimi Ikezawa