Patents by Inventor Nobuhiro Nozato

Nobuhiro Nozato 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).

  • Pipe of hard thermoplastic resin, pipe joint structure and methods of manufacturing the same
    Patent number: 6357802
    Abstract: An air-pressure joint 1 comprising a pipe main body 2 made of a rigid thermoplastic resin and a release ring 3 made of a rigid thermoplastic resin inserted from one opening of the pipe main body, wherein the release ring includes a slip-off preventing protrusion 13 on an outer circumferential surface of its insertion site; and the pipe main body 2 includes a ring-shaped sealing portion 9 made of an elastic resin and integrally formed on an inner circumferential surface thereof, an insertion mouth pipe portion 7 made of a rigid rigid resin, coaxially disposed to abut one opening side portion of the pipe main body 2 and forming a recess groove 10 on an inner circumferential surface of an abutting portion thereof for stopping the slip-off preventing protrusion 13 of the release ring 3, and a ring-shaped connecting portion 8 made of a rigid synthetic resin and integrally molded to an outer circumferential surface of the abutting portion of this mouth pipe for connecting the insertion mouth pipe portion 7 to the p
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: March 19, 2002
    Assignees: Mikuni Plastics Co., Ltd., Daicel-Hüls, Ltd., Daicel Chemical Industries, Ltd.
    Inventors: Nobuhiro Nozato, Atsushi Inagaki, Shinichi Matsumoto, Hajime Komada, Mitsuteru Mutsuda, Masanori Hiraishi