Patents by Inventor Daizo Hosotani

Daizo Hosotani 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).

  • Nitrile group-containing highly saturated copolymer rubber
    Patent number: 8404767
    Abstract: A nitrile group-containing highly saturated copolymer rubber having an iodine value of 80 or less and containing a caprate in 0.01 to 0.4 wt %. Preferably, the caprate is an alkaline earth metal caprate or Group XIII metal caprate. According to present invention, it is possible to provide a nitrile group-containing highly saturated copolymer rubber improved in mold fouling resistance while maintaining good normal state physical properties and heat resistance when being made into a cross-linked product.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: March 26, 2013
    Assignee: Zeon Corporation
    Inventors: Daizo Hosotani, Hiroyasu Nagamori, Shinya Ikeda
  • HIGHLY SATURATED NITRILE RUBBER FOR SEAL MATERIAL AND CROSS-LINKED RUBBER
    Publication number: 20100324226
    Abstract: A highly saturated nitrile rubber for a seal material used for sealing a solution containing an alcohol, the highly saturated nitrile rubber for a seal material having an iodine value of 80 or less and a content of a surfactant of 0.4 wt % or less. According to the present invention, it is possible to effectively prevent leaching of a contained ingredient by a water soluble ink, a fuel oil containing alcohol, or another solution containing an alcohol and possible to give cross-linked rubber superior in heat aging resistance.
    Type: Application
    Filed: August 8, 2008
    Publication date: December 23, 2010
    Inventor: Daizo Hosotani
  • NITRILE GROUP-CONTAINING HIGHLY SATURATED COPOLYMER RUBBER
    Publication number: 20100305278
    Abstract: A nitrile group-containing highly saturated copolymer rubber having an iodine value of 80 or less and containing a caprate in 0.01 to 0.4 wt %. Preferably, the caprate is an alkaline earth metal caprate or Group XIII metal caprate. According to present invention, it is possible to provide a nitrile group-containing highly saturated copolymer rubber improved in mold fouling resistance while maintaining good normal state physical properties and heat resistance when being made into a cross-linked product.
    Type: Application
    Filed: December 26, 2008
    Publication date: December 2, 2010
    Inventors: Daizo Hosotani, Hiroyasu Nagamori, Shinya Ikeda