Patents by Inventor Toshi Katoh

Toshi Katoh 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).

  • Rotational angel detector with rotational-angle change-amount calculating unit calculating amount of change of absolute rotational angle
    Patent number: 7548058
    Abstract: A small-sized rotational angle detector can output both the absolute rotational angle ? including the frequency of the steering shaft and the relative rotational angle signal. The amount of change of the absolute rotational angle is calculated on a sampling-period basis. A transition interval is determined based on the sampling period and the amount of change of the absolute rotational angle. Based on the preset pulse pattern, A-phase, B-phase and Z-phase pulses transitioning at the transition intervals are generated. Assuming that the amount of change of the absolute rotational angle in the sampling period of 10 ms is 2°, 2.5 ms obtained by dividing the sampling period 10 ms by the range of change 4 converted based on a predetermined unit 0.5° of the absolute rotational angle region, is defined as a pulse transition interval. The pulses are outputted as a relative rotational angle signal.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: June 16, 2009
    Assignee: Niles Co., Ltd.
    Inventor: Toshi Katoh
  • Rotational angel detector
    Publication number: 20070229062
    Abstract: A small-sized rotational angle detector can output both the absolute rotational angle ? including the frequency of the steering shaft and the relative rotational angle signal. The amount of change of the absolute rotational angle is calculated on a sampling-period basis. A transition interval is determined based on the sampling period and the amount of change of the absolute rotational angle. Based on the preset pulse pattern, A-phase, B-phase and Z-phase pulses transitioning at the transition intervals are generated. Assuming that the amount of change of the absolute rotational angle in the sampling period of 10 ms is 2°, 2.5 ms obtained by dividing the sampling period 10 ms by the range of change 4 converted based on a predetermined unit 0.5° of the absolute rotational angle region, is defined as a pulse transition interval. The pulses are outputted as a relative rotational angle signal.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 4, 2007
    Applicant: NILES CO., LTD.
    Inventor: Toshi Katoh