Patents by Inventor Toshiro Hada

Toshiro Hada 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: 8513160
    Abstract: The present invention provides a heat-sensitive recording material that has high gloss and excellent absorption and scratch off properties against sebum soiling; and a method for producing the heat-sensitive recording material. More specifically, the present invention provides a heat-sensitive recording material containing a heat-sensitive recording layer, an intermediate layer, and a protective layer, which are sequentially formed in this order on a support. The heat-sensitive recording layer contains a leuco dye and a developer; the intermediate layer contains an aqueous adhesive; and the protective layer is cured by irradiation of an ultraviolet- or electron-beam-curable resin composition with ultraviolet light or an electron beam. The heat-sensitive recording material additionally contains, on the protective layer, an uppermost layer which contains an aqueous adhesive and a pigment having a mean particle diameter of not more than 100 nm.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: August 20, 2013
    Assignee: OJI Holdings Corporation
    Inventors: Toshiro Hada, Masaaki Shimizu, Yasuyuki Aoki, Naotaka Endo, Hiroyuki Ohhashi, Tomokazu Ishiguro
  • Patent number: 8476191
    Abstract: The present invention relates to a heat-sensitive recording material comprising one or more heat-sensitive recording layers, an intermediate layer and a protective layer that are formed on one side of a transparent support, and the present inventions provide a heat-sensitive recording material and a process for providing the heat-sensitive recording material, wherein the one or more heat-sensitive recording layers are formed from one or more heat-sensitive recording layer coating compositions that each contain a leuco dye and a developer, the intermediate layer is formed from an intermediate layer coating composition that contains a hydrazine-based compound and an oxazoline group-containing compound, and the protective layer is formed from a protective layer coating composition that contains a modified polyvinyl alcohol.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: July 2, 2013
    Assignee: Oji Holdings Corporation
    Inventors: Toshiro Hada, Yoshihiko Yoneda
  • Publication number: 20110318511
    Abstract: The present invention provides a heat-sensitive recording material that has high gloss and excellent absorption and scratch off properties against sebum soiling; and a method for producing the heat-sensitive recording material. More specifically, the present invention provides a heat-sensitive recording material containing a heat-sensitive recording layer, an intermediate layer, and a protective layer, which are sequentially formed in this order on a support. The heat-sensitive recording layer contains a leuco dye and a developer; the intermediate layer contains an aqueous adhesive; and the protective layer is cured by irradiation of an ultraviolet- or electron-beam-curable resin composition with ultraviolet light or an electron beam. The heat-sensitive recording material additionally contains, on the protective layer, an uppermost layer which contains an aqueous adhesive and a pigment having a mean particle diameter of not more than 100 nm.
    Type: Application
    Filed: February 16, 2010
    Publication date: December 29, 2011
    Applicant: OJI PAPER CO., LTD.
    Inventors: Toshiro Hada, Masaaki Shimizu, Yasuyuki Aoki, Naotaka Endo, Hiroyuki Ohhashi, Tomokazu Ishiguro
  • Publication number: 20110177942
    Abstract: The present invention relates to a heat-sensitive recording material comprising one or more heat-sensitive recording layers, an intermediate layer and a protective layer that are formed on one side of a transparent support, and the present inventions provide a heat-sensitive recording material and a process for providing the heat-sensitive recording material, wherein the one or more heat-sensitive recording layers are formed from one or more heat-sensitive recording layer coating compositions that each contain a leuco dye and a developer, the intermediate layer is formed from an intermediate layer coating composition that contains a hydrazine-based compound and an oxazoline group-containing compound, and the protective layer is formed from a protective layer coating composition that contains a modified polyvinyl alcohol.
    Type: Application
    Filed: October 2, 2009
    Publication date: July 21, 2011
    Applicant: OJI PAPER CO., LTD.
    Inventors: Toshiro Hada, Yoshihiko Yoneda
  • Patent number: 7354884
    Abstract: Disclosed is a heat-sensitive recording material comprising (a) a transparent film, (b) a heat-sensitive recording layer formed on one side of the transparent film, and containing an electron-donating compound, an electron-accepting compound, and a binder, (c) a protective layer formed on the heat-sensitive recording layer, and containing an aqueous resin as a primary component; and (d) a backside layer formed on the other side of the transparent film, and containing a pigment and a binder; the heat-sensitive recording material containing in the backside layer spherical resin particles having a mean volume particle diameter of 2 to 15 ?m in an amount of 0.2 to 5.0 mass % of the backside layer.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: April 8, 2008
    Assignee: OJI Paper Co., Ltd.
    Inventors: Toshiro Hada, Shigeji Matsuzawa, Masanao Tajiri, Ritsuo Mando
  • Publication number: 20050239646
    Abstract: Disclosed is a heat-sensitive recording material comprising (a) a transparent film, (b) a heat-sensitive recording layer formed on one side of the transparent film, and containing an electron-donating compound, an electron-accepting compound, and a binder, (c) a protective layer formed on the heat-sensitive recording layer, and containing an aqueous resin as a primary component; and (d) a backside layer formed on the other side of the transparent film, and containing a pigment and a binder; the heat-sensitive recording material containing in the backside layer spherical resin particles having a mean volume particle diameter of 2 to 15 ?m in an amount of 0.2 to 5.0 mass % of the backside layer.
    Type: Application
    Filed: September 8, 2003
    Publication date: October 27, 2005
    Applicant: Oji Paper Co., Ltd.
    Inventors: Toshiro Hada, Shigeji Matsuzawa, Masanao Tajiri, Ritsuo Mando