Patents by Inventor Kazuyuki Yokobayashi

Kazuyuki Yokobayashi 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).

  • Temperature adjusting and compressing in injection stretch blow molding for forming raised portions in the container produced
    Patent number: 5124110
    Abstract: A process for forming a hollow container from a hot closed-end parison includes the steps of injection molding a hot closed-end parison, adjusting the temperature of the hot closed-end parison by heating or cooling the hot closed-end parison in a predetermined location within a temperature adjusting pot in a temperature adjusting device. The parison is then blow-molded into a hollow container having a predetermined configuration after the parison has been adjusted in temperature. The temperature adjusting step uses at least either of the temperature adjusting pot or a temperature adjusting core in the temperature adjusting device so as to apply a pre-treatment, such as by clamping, to a portion of said hot closed-end parison for obtaining a predetermined concavo-convex pattern in the hollow container formed at the subsequent blowing step. Thus, a hollow container, a portion of which has the desired concavo-convex pattern, can be mass-produced simply and inexpensively.
    Type: Grant
    Filed: July 18, 1990
    Date of Patent: June 23, 1992
    Assignee: Nissei ASB Machine Co., Ltd.
    Inventor: Kazuyuki Yokobayashi