Patents by Inventor Hisakazu ARAKI

Hisakazu ARAKI 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).

  • Injection molding machine and injection molding method
    Patent number: 11911945
    Abstract: Provided are an injection molding machine and an injection molding method. An injection molding machine includes: a plasticizing unit which rotates a screw to plasticize a molding material inside a plastication cylinder, and an injection unit. The injection unit has: a plunger reciprocally moving inside an injection chamber, and an injection driving device reciprocally moving the plunger. By driving the injection driving device to move the plunger backward and forward inside the injection chamber, and driving a rotary driving device to alternately rotate the screw in a normal rotation direction and a reverse rotation direction, the molding material is controlled to reciprocate between the plastication cylinder and the injection chamber.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: February 27, 2024
    Assignee: Sodick Co., Ltd.
    Inventors: Yoshikazu Kubo, Hisakazu Araki, Koichi Hirota, Kenzo Akiyama
  • INJECTION MOLDING MACHINE AND INJECTION MOLDING METHOD
    Publication number: 20220016818
    Abstract: Provided are an injection molding machine and an injection molding method. An injection molding machine includes: a plasticizing unit which rotates a screw to plasticize a molding material inside a plastication cylinder, and an injection unit. The injection unit has: a plunger reciprocally moving inside an injection chamber, and an injection driving device reciprocally moving the plunger. By driving the injection driving device to move the plunger backward and forward inside the injection chamber, and driving a rotary driving device to alternately rotate the screw in a normal rotation direction and a reverse rotation direction, the molding material is controlled to reciprocate between the plastication cylinder and the injection chamber.
    Type: Application
    Filed: July 19, 2021
    Publication date: January 20, 2022
    Applicant: Sodick Co., Ltd.
    Inventors: Yoshikazu KUBO, Hisakazu ARAKI, Koichi HIROTA, Kenzo AKIYAMA