Patents by Inventor Yuuichi Shirasu

Yuuichi Shirasu 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).

  • Composite porous membrane and method for producing the same
    Patent number: 7807221
    Abstract: An object of the present invention is to provide a composite porous membrane, which has not only excellent filtration capacity, but also excellent adhesion between a porous membrane and a braid and mechanical properties, and a method for producing the composite porous membrane. The present invention relates to a composite porous membrane comprising a braid, and a membrane material; wherein the membrane material comprises a first porous layer comprising a dense layer which is arranged on the outer surface of the braid, and a second porous layer comprising a dense layer which is arranged on the first porous layer, and a method for producing the composite porous membrane.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: October 5, 2010
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Katsuhiko Shinada, Kei Murase, Teruyuki Yamada, Yuuichi Shirasu, Masahiko Mizuta, Hiroyuki Fujiki
  • Composite porous membrane and method for producing the same
    Patent number: 7562778
    Abstract: An object of the present invention is to provide a composite porous membrane, which has not only excellent filtration capacity, but also excellent adhesion between a porous membrane and a braid and mechanical properties, and a method for producing the composite porous membrane. The present invention relates to a composite porous membrane comprising a braid, and a membrane material; wherein the membrane material comprises a first porous layer comprising a dense layer which is arranged on the outer surface of the braid, and a second porous layer comprising a dense layer which is arranged on the first porous layer, and a method for producing the composite porous membrane.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: July 21, 2009
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Katsuhiko Shinada, Kei Murase, Teruyuki Yamada, Yuuichi Shirasu, Masahiko Mizuta, Hiroyuki Fujiki
  • Composite porous membrane and method for producing the same
    Patent number: 7306105
    Abstract: An object of the present invention is to provide a composite porous membrane, which has not only excellent filtration capacity, but also excellent adhesion between a porous membrane and a braid and mechanical properties, and a method for producing the composite porous membrane. The present invention relates to a composite porous membrane comprising a braid, and a membrane material; wherein the membrane material comprises a first porous layer comprising a dense layer which is arranged on the outer surface of the braid, and a second porous layer comprising a dense layer which is arranged on the first porous layer, and a method for producing the composite porous membrane.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: December 11, 2007
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Katsuhiko Shinada, Kei Murase, Teruyuki Yamada, Yuuichi Shirasu, Masahiko Mizuta, Hiroyuki Fujiki
  • Composite porous membrane and method for producing the same
    Publication number: 20070262017
    Abstract: An object of the present invention is to provide a composite porous membrane, which has not only excellent filtration capacity, but also excellent adhesion between a porous membrane and a braid and mechanical properties, and a method for producing the composite porous membrane. The present invention relates to a composite porous membrane comprising a braid, and a membrane material; wherein the membrane material comprises a first porous layer comprising a dense layer which is arranged on the outer surface of the braid, and a second porous layer comprising a dense layer which is arranged on the first porous layer, and a method for producing the composite porous membrane.
    Type: Application
    Filed: July 11, 2007
    Publication date: November 15, 2007
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Katsuhiko Shinada, Kei Murase, Teruyuki Yamada, Yuuichi Shirasu, Masahiko Mitzuta, Hiroyuki Fujiki
  • Composite Porous Membrane and Method for Producing the Same
    Publication number: 20070243324
    Abstract: An object of the present invention is to provide a composite porous membrane, which has not only excellent filtration capacity, but also excellent adhesion between a porous membrane and a braid and mechanical properties, and a method for producing the composite porous membrane. The present invention relates to a composite porous membrane comprising a braid, and a membrane material; wherein the membrane material comprises a first porous layer comprising a dense layer which is arranged on the outer surface of the braid, and a second porous layer comprising a dense layer which is arranged on the first porous layer, and a method for producing the composite porous membrane.
    Type: Application
    Filed: June 21, 2007
    Publication date: October 18, 2007
    Applicant: Mitsubishi Rayon Engineering Co., Ltd. & Mitsubishi Rayon Co., Ltd.
    Inventors: Katsuhiko SHINADA, Kei Murase, Teruyuki Yamada, Yuuichi Shirasu, Masahiko Mizuta, Hiroyuki Fujiki
  • Composite porous membrane and method for producing the same
    Publication number: 20050205488
    Abstract: An object of the present invention is to provide a composite porous membrane, which has not only excellent filtration capacity, but also excellent adhesion between a porous membrane and a braid and mechanical properties, and a method for producing the composite porous membrane. The present invention relates to a composite porous membrane comprising a braid, and a membrane material; wherein the membrane material comprises a first porous layer comprising a dense layer which is arranged on the outer surface of the braid, and a second porous layer comprising a dense layer which is arranged on the first porous layer, and a method for producing the composite porous membrane.
    Type: Application
    Filed: May 10, 2005
    Publication date: September 22, 2005
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Katsuhiko Shinada, Kei Murase, Teruyuki Yamada, Yuuichi Shirasu, Masahiko Mizuta, Hiroyuki Fujiki