Patents by Inventor Ryuichi Tokuno

Ryuichi Tokuno 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
    Patent number: 9724863
    Abstract: An injection molding machine is provided that includes a clamping force sensor that detects a clamping force of a mold, and a clamping force monitoring unit that monitors a detected value of the clamping force sensor and calculates a first mold open distance and/or a second mold open distance. The first mold open distance is calculated based on the difference between the maximum value of the detected values obtained during an injection process and a pressure holding process and the detected value obtained at the start of the injection process. The second mold open distance that is calculated based on the difference between the detected value obtained at the end of the pressure holding process and the detected value obtained at the start of the injection process.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: August 8, 2017
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventors: Ryuichi Tokuno, Suguru Nishimura
  • INJECTION MOLDING MACHINE
    Publication number: 20130251836
    Abstract: An injection molding machine is provided that includes a clamping force sensor that detects a clamping force of a mold, and a clamping force monitoring unit that monitors a detected value of the clamping force sensor and calculates a first mold open distance and/or a second mold open distance. The first mold open distance is calculated based on the difference between the maximum value of the detected values obtained during an injection process and a pressure holding process and the detected value obtained at the start of the injection process. The second mold open distance that is calculated based on the difference between the detected value obtained at the end of the pressure holding process and the detected value obtained at the start of the injection process.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 26, 2013
    Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventors: Ryuichi Tokuno, Suguru Nishimura