Patents by Inventor Tsubasa HARAKAWA

Tsubasa HARAKAWA 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).

  • Movement system and position estimation method
    Patent number: 12085967
    Abstract: A servomotor (20) is driven to move a machine (10) with a ball screw (30). A first sensor (50) detects presence of the machine (10) at a first reference position (P) being predefined. A controller (60) stores a state of the servomotor (20) detected by an encoder (40) as reference state information upon detection of the machine (10) by the first sensor (50). The controller (60) estimates a position of the machine (10) based on the state of the servomotor (20) detected by the encoder (40) and the reference state information.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: September 10, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tsubasa Harakawa, Hiroshi Motomaru
  • MOVEMENT SYSTEM AND POSITION ESTIMATION METHOD
    Publication number: 20230213949
    Abstract: A servomotor (20) is driven to move a machine (10) with a ball screw (30). A first sensor (50) detects presence of the machine (10) at a first reference position (P) being predefined. A controller (60) stores a state of the servomotor (20) detected by an encoder (40) as reference state information upon detection of the machine (10) by the first sensor (50). The controller (60) estimates a position of the machine (10) based on the state of the servomotor (20) detected by the encoder (40) and the reference state information.
    Type: Application
    Filed: November 12, 2020
    Publication date: July 6, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tsubasa HARAKAWA, Hiroshi MOTOMARU