Patents by Inventor Keiichi Suzaka

Keiichi Suzaka 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).

  • Method for producing hollow molded article and injection stretch blow molding machine
    Patent number: 11623382
    Abstract: A blow mold high-pressure switching step in a blow molding process of an injection stretch blow molding machine is arranged at the first half portion of the blow molding process, to shorten the injection molding process and improve the moldability. The blow mold high-pressure switching step 61B3 of increasing a mold clamping force for blow molds which have been closed in a blow molding process 61B is configured to be performed at a timing within a time from the start of the upper/lower mold opening step 62A1 for opening upper and lower molds in the injection molding process 62A to release a preform 3P to the completion of the injection mold high-pressure switching step 62A3 for increasing the mold clamping force for the closed injection molding mold.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: April 11, 2023
    Assignee: Aoki Technical Laboratory, Inc.
    Inventor: Keiichi Suzaka
  • METHOD FOR PRODUCING HOLLOW MOLDED ARTICLE AND INJECTION STRETCH BLOW MOLDING MACHINE
    Publication number: 20230017761
    Abstract: A blow mold high-pressure switching step in a blow molding process of an injection stretch blow molding machine is arranged at the first half portion of the blow molding process, to shorten the injection molding process and improve the moldability. The blow mold high-pressure switching step 61B3 of increasing a mold clamping force for blow molds which have been closed in a blow molding process 61B is configured to be performed at a timing within a time from the start of the upper/lower mold opening step 62A1 for opening upper and lower molds in the injection molding process 62A to release a preform 3P to the completion of the injection mold high-pressure switching step 62A3 for increasing the mold clamping force for the closed injection molding mold.
    Type: Application
    Filed: July 12, 2022
    Publication date: January 19, 2023
    Inventor: Keiichi Suzaka