Patents by Inventor Motoki Nagase

Motoki Nagase 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).

  • Filter medium
    Patent number: 7452831
    Abstract: The filter fabric containing polyphenylene sulfide fibers, characterized in that the following (1) and/or (2) is satisfied is used to provide a filter fabric and a bag filter composed of the filter fabric excellent in dust-collecting efficiency and high in mechanical strength: (1) Containing at least two webs, one of which on the dust side contains 50 wt % or more of heat resistant fibers with a fiber, diameter of 15 ?m or less, while the other web on the clean side contains 50 wt % or more of heat resistant fibers with a fiber diameter of 20 ?m or more (2) Containing a web containing polyphenylene sulfide staple fibers with their fineness kept in a range from 1 to 3 dtex and fluorine-based staple fibers with their fineness kept in a range from 2 to 4 dtex.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: November 18, 2008
    Assignee: Toray Industries, Inc.
    Inventors: Kenko Yamada, Motoki Nagase
  • Filter medium
    Publication number: 20060172639
    Abstract: The filter fabric containing polyphenylene sulfide fibers, characterized in that the following (1) and/or (2) is satisfied is used to provide a filter fabric and a bag filter composed of the filter fabric excellent in dust-collecting efficiency and high in mechanical strength: (1) Containing at least two webs, one of which on the dust side contains 50 wt % or more of heat resistant fibers with a fiber, diameter of 15 ?m or less, while the other web on the clean side contains 50 wt % or more of heat resistant fibers with a fiber diameter of 20 ?m or more (2) Containing a web containing polyphenylene sulfide staple fibers with their fineness kept in a range from 1 to 3 dtex and fluorine-based staple fibers with their fineness kept in a range from 2 to 4 dtex.
    Type: Application
    Filed: March 25, 2004
    Publication date: August 3, 2006
    Applicant: Toray Industries, Inc., a corporation of Japan
    Inventors: Kenko Yamada, Motoki Nagase