Patents by Inventor Norihisa Minowa

Norihisa Minowa 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).

  • Bonding perfluoroelastomers to aluminum
    Publication number: 20060201613
    Abstract: A surface of an aluminum substrate is anodized. A curable perfluoroelastomer composition is then compression molded and vulcanized onto the anodized aluminum surface. The bonded part may then be post cured in order to improve both the tensile properties of the vulcanized perfluoroelastomer and the bond strength to the surface of the aluminum substrate.
    Type: Application
    Filed: February 10, 2006
    Publication date: September 14, 2006
    Inventors: Norihisa Minowa, Kohtaro Takahashi
  • Valve seal assembly
    Patent number: 6932354
    Abstract: The present invention is directed to a valve seal assembly for use in multi-chamber vacuum devices. The seal assembly comprises a door and a deformable seal ring running along the periphery of the door, wherein the seal ring is held in place by a reversibly mounted securing means such as a disk, ring or clamp.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: August 23, 2005
    Assignee: DuPont Dow Elastomers, LLC
    Inventors: Dale Robert Kane, Norihisa Minowa, Kohtaro Takahashi
  • Valve seal assembly
    Publication number: 20050046123
    Abstract: The present invention is directed to a valve seal assembly for use in multi-chamber vacuum devices. The seal assembly comprises a door and a deformable seal ring running along the periphery of the door, wherein the seal ring is held in place by a reversibly mounted securing means such as a disk, ring or clamp.
    Type: Application
    Filed: October 7, 2004
    Publication date: March 3, 2005
    Inventors: Norihisa Minowa, Kohtaro Takahashi
  • Valve seal assembly
    Publication number: 20030164596
    Abstract: The present invention is directed to a valve seal assembly for use in multi-chamber vacuum devices. The seal assembly comprises a door and a deformable seal ring running along the periphery of the door, wherein the seal ring is held in place by a reversibly mounted securing means such as a disk, ring or clamp.
    Type: Application
    Filed: February 6, 2003
    Publication date: September 4, 2003
    Inventors: Dale Robert Kane, Norihisa Minowa, Kohtaro Takahashi