Patents by Inventor Mitsuhiro Oota

Mitsuhiro Oota 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: 9527327
    Abstract: The purpose is to provide a protective layer transfer sheet and an intermediate transfer medium, in which a transfer layer has excellent foil tearing property during transfer and in which sufficient durability can be imparted to the thermally transferred image. The above problem is solved by a protective layer transfer sheet (100) in which a transfer layer (20) is provided on one surface of a substrate (1) so as to be peelable from the substrate (1), wherein the transfer layer (20) comprises a peeling layer (2) and a protective layer (3) which are layered in this order from the substrate; wherein the protective layer (3) includes an acrylic polyol resin having a glass transition temperature (Tg) of more than 80° C. or a polyester polyurethane resin having a glass transition temperature (Tg) of not less than 50° C.; and wherein the peeling layer includes at least one selected from a group consisting of polyester resins, acrylic urethane resins, and epoxy resins.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: December 27, 2016
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Junpei Oomura, Kenzo Hayashi, Mitsuhiro Oota, Kano Sakamoto, Shinya Yoda
  • Patent number: 9387653
    Abstract: The purpose is to provide a protective layer transfer sheet and an intermediate transfer medium, in which the protective layer has excellent foil tearing property during transfer and in which sufficient durability can be imparted to the thermally transferred image. The above problem is solved by a protective layer transfer sheet in which a transferable protective layer (20) is provided on one surface of a substrate (1) so as to be peelable from the substrate (1), wherein the transferable protective layer (20) has a layered structure in which a first protective layer (3A), and a second protective layer (3B) which is in contact directly with the first protective layer (3A), are provided in this order from the substrate (1); the first protective layer contains an epoxy-cured resin in which a reactive resin having a functional group capable of reacting with an epoxy group and having a glass transition temperature (Tg) of not less than 60° C.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: July 12, 2016
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Junpei Oomura, Kenzo Hayashi, Mitsuhiro Oota, Kano Sakamoto, Shinya Yoda
  • Publication number: 20160082707
    Abstract: The purpose is to provide a protective layer transfer sheet and an intermediate transfer medium, in which the protective layer has excellent foil tearing property during transfer and in which sufficient durability can be imparted to the thermally transferred image. The above problem is solved by a protective layer transfer sheet in which a transferable protective layer (20) is provided on one surface of a substrate (1) so as to be peelable from the substrate (1), wherein the transferable protective layer (20) has a layered structure in which a first protective layer (3A), and a second protective layer (3B) which is in contact directly with the first protective layer (3A), are provided in this order from the substrate (1); the first protective layer contains an epoxy-cured resin in which a reactive resin having a functional group capable of reacting with an epoxy group and having a glass transition temperature (Tg) of not less than 60° C.
    Type: Application
    Filed: March 20, 2014
    Publication date: March 24, 2016
    Inventors: Junpei OOMURA, Kenzo HAYASHI, Mitsuhiro OOTA, Kano SAKAMOTO, Shinya YODA
  • Publication number: 20160067997
    Abstract: The purpose is to provide a protective layer transfer sheet and an intermediate transfer medium, in which a transfer layer has excellent foil tearing property during transfer and in which sufficient durability can be imparted to the thermally transferred image. The above problem is solved by a protective layer transfer sheet (100) in which a transfer layer (20) is provided on one surface of a substrate (1) so as to be peelable from the substrate (1), wherein the transfer layer (20) comprises a peeling layer (2) and a protective layer (3) which are layered in this order from the substrate; wherein the protective layer (3) includes an acrylic polyol resin having a glass transition temperature (Tg) of more than 80° C. or a polyester polyurethane resin having a glass transition temperature (Tg) of not less than 50° C.; and wherein the peeling layer includes at least one selected from a group consisting of polyester resins, acrylic urethane resins, and epoxy resins.
    Type: Application
    Filed: March 28, 2014
    Publication date: March 10, 2016
    Inventors: Junpei OOMURA, Kenzo HAYASHI, Mitsuhiro OOTA, Kano SAKAMOTO, Shinya YODA
  • Publication number: 20150118420
    Abstract: In an intermediate transfer medium, a substrate, protective layers having a layered structure of two or more layers, and a receiving layer are layered in this order. One layer in the protective layers having the layered structure contains, as a main component, one material or a mixture of two or more materials selected from the group consisting of polyesters having a high polymerization degree, a number-average molecular weight (Mn) of not less than 12,000 and a Tg of not less than 60° C., polycarbonates and polyester urethanes. Another layer in the protective layers having the layered structure contains one or more materials selected from the group consisting of polyvinyl alcohols, polyvinyl butyrals, polyvinyl acetals and polyvinyl pyrrolidones or includes a cationic resin, and the receiving layer contains a side chain-type aralkyl-modified silicone in an amount of 0.5-5% by weight on a base of the total weight of the receiving layer.
    Type: Application
    Filed: December 30, 2014
    Publication date: April 30, 2015
    Inventors: Shinya YODA, Tadahiro ISHIDA, Mitsuhiro OOTA
  • Patent number: 8962112
    Abstract: In an intermediate transfer medium, a substrate, protective layers having a layered structure of two or more layers, and a receiving layer are layered in this order. One layer in the protective layers having the layered structure contains, as a main component, one material or a mixture of two or more materials selected from the group consisting of polyesters having a high polymerization degree, a number-average molecular weight (Mn) of not less than 12,000 and a Tg of not less than 60° C., polycarbonates and polyester urethanes. Another layer in the protective layers having the layered structure contains one or more materials selected from the group consisting of polyvinyl alcohols, polyvinyl butyrals, polyvinyl acetals and polyvinyl pyrrolidones or includes a cationic resin, and the receiving layer contains a side chain-type aralkyl-modified silicone in an amount of 0.5-5% by weight on a base of the total weight of the receiving layer.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: February 24, 2015
    Assignee: Dai Nippon Printing Co., ltd.
    Inventors: Shinya Yoda, Tadahiro Ishida, Mitsuhiro Oota
  • Patent number: 8717397
    Abstract: There is provided a thermal transfer sheet that, by virtue of flexibility and heat resistance imparted by a primer layer constituting the thermal transfer sheet, is less likely to be broken even upon exposure to a high level of thermal energy and is highly suitable for high-speed printing. The thermal transfer sheet has a thermally transferable colorant layer provided on one surface of a base material sheet, and a heat-resistant slipping layer provided on the other surface of the base material sheet through a primer layer. The primer layer contains at least a polyvinyl alcohol resin and a crosslinking agent.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: May 6, 2014
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Tomoko Suzuki, Yoshimasa Kobayashi, Kano Sakamoto, Shinya Yoda, Mitsuhiro Oota
  • Publication number: 20130164463
    Abstract: In an intermediate transfer medium, a substrate, protective layers having a layered structure of two or more layers, and a receiving layer are layered in this order. One layer in the protective layers having the layered structure contains, as a main component, one material or a mixture of two or more materials selected from the group consisting of polyesters having a high polymerization degree, a number-average molecular weight (Mn) of not less than 12,000 and a Tg of not less than 60° C., polycarbonates and polyester urethanes. Another layer in the protective layers having the layered structure contains one or more materials selected from the group consisting of polyvinyl alcohols, polyvinyl butyrals, polyvinyl acetals and polyvinyl pyrrolidones or includes a cationic resin, and the receiving layer contains a side chain-type aralkyl-modified silicone in an amount of 0.5-5% by weight on a base of the total weight of the receiving layer.
    Type: Application
    Filed: August 23, 2011
    Publication date: June 27, 2013
    Applicant: DAI NIPPON PRINTING CO, LTD.
    Inventors: Shinya Yoda, Tadahiro Ishida, Mitsuhiro Oota
  • Publication number: 20130135417
    Abstract: There is provided a thermal transfer sheet that, by virtue of flexibility and heat resistance imparted by a primer layer constituting the thermal transfer sheet, is less likely to be broken even upon exposure to a high level of thermal energy and is highly suitable for high-speed printing. The thermal transfer sheet has a thermally transferable colorant layer provided on one surface of a base material sheet, and a heat-resistant slipping layer provided on the other surface of the base material sheet through a primer layer. The primer layer contains at least a polyvinyl alcohol resin and a crosslinking agent.
    Type: Application
    Filed: August 25, 2010
    Publication date: May 30, 2013
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Tomoko Suzuki, Yoshimasa Kobayashi, Kano Sakamoto, Shinya Yoda, Mitsuhiro Oota