Patents Assigned to Itoh Denki Company, Limited
  • DC brushless motor control apparatus
    Patent number: 6858999
    Abstract: Drivers (12a,12b) drive respective DC brushless motors (8a, 8b) having rotor position detecting Hall-effect devices. A CPU (18) detects the numbers of rotations of the respective motors (8a, 8b) in response to the detection of the positions of the rotors by the Hall-effect devices, and causes the driving of the motors (8a, 8b) by the drivers (12a, 12b) to stop when the detected number of the rotations attains a preset value.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: February 22, 2005
    Assignee: Itoh Denki Company, Limited
    Inventor: Yoshiyuki Kujihashi
  • DC brushless motor control apparatus
    Publication number: 20040021435
    Abstract: Drivers (12a, 12b) drive respective DC brushless motors (8a, 8b) having rotor position detecting Hall-effect devices. A CPU (18) detects the numbers of rotations of the respective motors (8a, 8b) in response to the detection of the positions of the rotors by the Hall-effect devices, and causes the driving of the motors (8a, 8b) by the drivers (12a, 12b) to stop when the detected number of the rotations attains a preset value.
    Type: Application
    Filed: July 10, 2003
    Publication date: February 5, 2004
    Applicant: Itoh Denki Company, Limited
    Inventor: Yoshiyuki Kujihashi