Patents by Inventor Nobuo Hatta

Nobuo Hatta 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).

  • Patent number: 7022632
    Abstract: The composite nonwoven fabric for protective clothing of the present invention comprises (A) a water vapor-permeable, water-resistant nonwoven fabric made of polyolefin-based ultra-fine fibers having an average fiber diameter of 5 ?m or less, (B) a heat-bonding nonwoven fabric made of thermoplastic elastomer ultra-fine fibers, and (C) a porous fabric. The nonwoven fabric B is interposed between the nonwoven fabric A and the porous fabric C, and the fabrics A, B and C being integrally bonded to each other. The composite nonwoven fabric is suitable for a protective clothing because it is water vapor-permeable and water-resistant on its outer side to be exposed to outside air, and is of high strength, sweat-absorbable and antistatic on its inner side, and also well-balanced in these properties.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: April 4, 2006
    Assignees: Kuraray Co., Ltd., Chori Co., Ltd.
    Inventors: Nobuo Hatta, Yasurou Araida, Masami Tadokoro
  • Publication number: 20040176009
    Abstract: The composite nonwoven fabric for protective clothing of the present invention comprises (A) a water vapor-permeable, water-resistant nonwoven fabric made of polyolefin-based ultra-fine fibers having an average fiber diameter of 5 &mgr;m or less, (B) a heat-bonding nonwoven fabric made of thermoplastic elastomer ultra-fine fibers, and (C) a porous fabric. The nonwoven fabric B is interposed between the nonwoven fabric A and the porous fabric C, and the fabrics A, B and C being integrally bonded to each other. The composite nonwoven fabric is suitable for a protective clothing because it is water vapor-permeable and water-resistant on its outer side to be exposed to outside air, and is of high strength, sweat-absorbable and antistatic on its inner side, and also well-balanced in these properties.
    Type: Application
    Filed: May 19, 2003
    Publication date: September 9, 2004
    Applicants: KURARAY Co. Ltd., CHORI Co., Ltd.
    Inventors: Nobuo Hatta, Yasurou Araida, Masami Tadokoro
  • Publication number: 20020055316
    Abstract: The laminated sheet of the present invention comprises (A) a nonwoven fabric having a basis weight of 30 g/m2 or less made of polyolefin-based ultra-fine fibers of 5 &mgr;m or less in average fiber diameter; (B) a heat-bonding nonwoven fabric having a basis weight of 15 g/m2 or less made of thermoplastic elastomer ultra-fine fibers of 15 &mgr;m or less in average fiber diameter; and (C) a spun-bonded nonwoven fabric having a basis weight of 30 g/m2 or more made of thermoplastic polymer fibers. The nonwoven fabric A and the spun-bonded nonwoven fabric C are face-bonded via the heat-bonding nonwoven fabric B. The laminated sheet is excellent and well-balanced in a wind breaking performance, a water vapor permeability and a waterproof performance. The laminated sheet is also excellent mechanical properties and durability. With these excellent properties, the laminated sheet is suitably used as house wrap materials and roof underlay sheets.
    Type: Application
    Filed: July 19, 2001
    Publication date: May 9, 2002
    Applicant: KURARAY Co., Ltd.
    Inventors: Yasurou Araida, Nobuo Hatta, Masami Tadokoro