Patents by Inventor Ken-ichi Ootani

Ken-ichi Ootani 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).

  • Blow molding process
    Patent number: 6284171
    Abstract: A blow molding process in which a gas is blown into a parison within a mold to inflate the parison, the parison makes intimate contact with a mold shaping portion to form a hollow molded product, and the gas within the hollow molded product is discharged for cooling, the blow molding process including setting an internal gas pressure of the hollow molded product to 5 to 8 kgf/cm2; and discharging a gas satisfying an expression, F≧10×W. while blowing, wherein F is a gas flow rate (N1/min) and W is a hollow molded product weight (g).
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: September 4, 2001
    Assignee: Kao Corporation
    Inventors: Akira Nonomura, Kenji Ichinohe, Ken-ichi Ootani