Patents by Inventor Atsutoshi Nakamura

Atsutoshi Nakamura 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).

  • Valve control apparatus and flow rate controller
    Patent number: 8172199
    Abstract: A valve control apparatus including a stepping motor coupled to a valve and a motor control unit for controlling the stepping motor is provided. The motor control unit includes a motor control section for applying drive pulses to the pulse motor, a counting section for counting the number of drive pulses applied to the pulse motor, a voltage-drop detecting section for detecting a voltage drop of a drive power supply for the motor control section, and a writing section for writing a count from the counting section in a nonvolatile memory if the voltage-drop detecting section detects the voltage drop.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: May 8, 2012
    Assignee: Surpass Industry Co., Inc.
    Inventors: Yoshihiro Ushigusa, Atsutoshi Nakamura
  • Valve Control Apparatus and Flow Rate Controller
    Publication number: 20090230339
    Abstract: A valve control apparatus including a stepping motor coupled to a valve and a motor control unit for controlling the stepping motor is provided. The motor control unit includes a motor control section for applying drive pulses to the pulse motor, a counting section for counting the number of drive pulses applied to the pulse motor, a voltage-drop detecting section for detecting a voltage drop of a drive power supply for the motor control section, and a writing section for writing a count from the counting section in a nonvolatile memory if the voltage-drop detecting section detects the voltage drop.
    Type: Application
    Filed: May 8, 2007
    Publication date: September 17, 2009
    Applicant: SURPASS INDUSTRY CO., LTD.
    Inventors: Yoshihiro Ushigusa, Atsutoshi Nakamura