Patents by Inventor Takahiro Ikebe

Takahiro Ikebe 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).

  • Publication number: 20240103354
    Abstract: A reflective mask blank, having a phase shift film having little dependence of phase difference and reflectance on film thickness, and a reflective mask.
    Type: Application
    Filed: December 1, 2023
    Publication date: March 28, 2024
    Applicant: HOYA CORPORATION
    Inventors: Yohei IKEBE, Tsutomu SHOKI, Takahiro ONOUE, Hirofumi KOZAKAI
  • Patent number: 7910028
    Abstract: The direct vapor depositing resin composition of the present invention comprises at least one selected from the group consisting of (A-I): a graft copolymer obtained by graft-polymerizing one or more monomers or a monomer mixture to a complex rubber-like polymer (G) composed of a polyorganosiloxane and a (meth)acrylate-based polymer and (A-II): a graft copolymer obtained by graft-polymerizing one or more monomers or a monomer mixture including an alkyl (meth)acrylate as an essential component to a rubber-like polymer (R) in which the content of diene units is 30% by weight or less in 100% by weight of the whole rubber-like polymer. The direct vapor depositing resin composition of the present invention can provide a beautiful bright appearance after direct vapor deposition of a metal, further, has high level mechanical strengths such as impact strength and the like, and weather resistance, and is also excellent in hot plate welding property with a transparent resin such as PMMA resins, PC resins and the like.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: March 22, 2011
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yoshihiro Nakai, Takahiro Ikebe, Keiji Obata, Hideyuki Shigemitsu
  • Publication number: 20100159134
    Abstract: The direct vapor depositing resin composition of the present invention comprises at least one selected from the group consisting of (A-I): a graft copolymer obtained by graft-polymerizing one or more monomers or a monomer mixture to a complex rubber-like polymer (G) composed of a polyorganosiloxane and a (meth)acrylate-based polymer and (A-II): a graft copolymer obtained by graft-polymerizing one or more monomers or a monomer mixture including an alkyl (meth)acrylate as an essential component to a rubber-like polymer (R) in which the content of diene units is 30% by weight or less in 100% by weight of the whole rubber-like polymer. The direct vapor depositing resin composition of the present invention can provide a beautiful bright appearance after direct vapor deposition of a metal, further, has high level mechanical strengths such as impact strength and the like, and weather resistance, and is also excellent in hot plate welding property with a transparent resin such as PMMA resins, PC resins and the like.
    Type: Application
    Filed: March 3, 2010
    Publication date: June 24, 2010
    Applicant: Mitsubishi Rayon co., Ltd.
    Inventors: Yoshihiro NAKAI, Takahiro Ikebe, Keiji Obata, Hideyuki Shigemitsu
  • Publication number: 20040249069
    Abstract: The direct vapor depositing resin composition of the present invention comprises at least one selected from the group consisting of (A-I): a graft copolymer obtained by graft-polymerizing one or more monomers or a monomer mixture to a complex rubber-like polymer (G) composed of a polyorganosiloxane and a (meth)acrylate-based polymer and (A-II): a graft copolymer obtained by graft-polymerizing one or more monomers or a monomer mixture including an alkyl(meth)acrylate as an essential component to a rubber-like polymer (R) in which the content of diene units is 30% by weight or less in 100% by weight of the whole rubber-like polymer. The direct vapor depositing resin composition of the present invention can provide a beautiful bright appearance after direct vapor deposition of a metal, further, has high level mechanical strengths such as impact strength and the like, and weather resistance, and is also excellent in hot plate welding property with a transparent resin such as PMMA resins, PC resins and the like.
    Type: Application
    Filed: February 5, 2004
    Publication date: December 9, 2004
    Inventors: Yoshihiro Nakai, Takahiro Ikebe, Keiji Obata, Hideyuki Shigemitsu
  • Patent number: 6777492
    Abstract: The graft copolymer (G) of the present invention is a graft copolymer which is prepared by emulsion graft polymerization of a rubber polymer comprising 0-50% by weight of a butadiene unit and 50-100% by weight of a (meth)acrylate unit and at least one monomer selected from aromatic alkenyl compound, methacrylate, acrylate and vinyl cyanide compound, said graft copolymer containing 0.5-2.0% by weight of an emulsifier residue. The thermoplastic resin composition containing the graft copolymer of the present invention causes less gas evolution during the molding, provides a molded article with good gloss of molding, and has excellent weather resistance, impact resistance and fluidity.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: August 17, 2004
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yoshihiro Nakai, Hideyuki Fujii, Hisaya Yokohama, Takahiro Ikebe, Nobumitsu Fukuyama, Hideyuki Shigemitsu