Patents by Inventor Mutsuhiro Amari

Mutsuhiro Amari 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).

  • High-strength, chemically resistant laminar film with limited extractables
    Patent number: 7407708
    Abstract: A chemically resistant, extractable free, composite laminar film including polyimide, PFA and m-PTFE layers.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: August 5, 2008
    Assignee: Entegris, Inc.
    Inventors: Mutsuhiro Amari, Yukio Hashimoto, Tsutomu Ogawa
  • Filter cartridge
    Publication number: 20050218068
    Abstract: The present invention has an object to provide a filter cartridge for purifying a chemical which can efficiently remove metal ions and impurities in the form of fine particles in a liquid to be filtered. The present invention provides, as the means to achieve the above described object, a filter cartridge comprising a fiber membrane material obtained by introducing ion exchange groups and/or chelate groups into an organic polymer fiber membrane base material having an average fiber diameter of 0.1 ?m to 20 ?m and an average pore size of 1 ?m to 20 ?m or a filter cartridge. And also present invention provides, as the means to achieve the above described object, comprising a bi-layered or laminated structure of filter membranes prepared from fiber membrane material obtained by introducing ion exchange groups and/or chelate groups into an organic polymer fiber membrane base material and a micro porous membrane material.
    Type: Application
    Filed: February 27, 2003
    Publication date: October 6, 2005
    Inventors: Makoto Komatsu, Kunio Fujiwara, Kazuyoshi Takeda, Yukio Hashimoto, Eriko Usui, Mutsuhiro Amari