Patents by Inventor Sakaoki Okita

Sakaoki Okita 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).

  • Apparatus for granulating plastics
    Patent number: 5190768
    Abstract: A plastics granulating apparatus includes a cutter holder having cutter knives driven to rotate along a die surface of a die and a housing provided with a cutter drive shaft for driving the cutter holder to rotate in a manner so that plastics particles are obtained by cutting resin extruded from the die with the cutter knives, wherein a sleeve is axially movably provided in the housing so as to coaxially rotatably hold the cutter drive shaft, and a pressure medium is supplied into space chambers formed between the sleeve and the housing so that the cutter drive shaft moves axially with axial movement of the sleeve.
    Type: Grant
    Filed: May 22, 1991
    Date of Patent: March 2, 1993
    Assignee: The Japan Steel Works, Ltd.
    Inventors: Yasuhiko Ishida, Minoru Yoshida, Hideki Mizuguchi, Sakaoki Okita, Tetsuo Makida