Patents by Inventor Keisuke Hashizume

Keisuke Hashizume 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).

  • State monitoring system
    Patent number: 10400755
    Abstract: Provided is a state monitoring system that monitors a state of an apparatus provided in a wind turbine, including a wireless measuring unit including a sensor provided to the apparatus, and a data collection. The wireless measuring unit includes a memory storing measured data obtained from the sensor, and a wireless communication unit transmitting the measured data obtained from the sensor to the data collection device. When the data collection device has not been able to receive the measured data from the wireless measuring unit, the data collection device requests the wireless measuring unit to retransmit the measured data.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: September 3, 2019
    Assignee: NTN Corporation
    Inventors: Akitoshi Takeuchi, Takashi Haseba, Keisuke Hashizume, Kazuki Koyamachi
  • STATE MONITORING SYSTEM
    Publication number: 20170096986
    Abstract: Provided is a state monitoring system that monitors a state of an apparatus provided in a wind turbine, including a wireless measuring unit including a sensor provided to the apparatus, and a data collection device. The wireless measuring unit includes a memory storing measured data obtained from the sensor, and a wireless communication unit transmitting the measured data obtained from the sensor to the data collection device. When the data collection device has not been able to receive the measured data from the wireless measuring unit, the data collection device requests the wireless measuring unit to retransmit the measured data.
    Type: Application
    Filed: March 17, 2015
    Publication date: April 6, 2017
    Inventors: Akitoshi TAKEUCHI, Takashi HASEBA, Keisuke HASHIZUME, Kazuki KOYAMACHI
  • CONDITION MONITORING SYSTEM AND CONDITION MONITORING METHOD
    Publication number: 20170016429
    Abstract: A wind turbine includes vibration sensors for detecting conditions of apparatuses in the wind turbine. Each of detection outputs of the vibration sensors is transmitted to an information processing device. The information processing device is arranged inside a support column of the wind turbine. The information processing device transmits the detection outputs to a management server over a network.
    Type: Application
    Filed: March 3, 2015
    Publication date: January 19, 2017
    Inventors: Kazuki KOYAMACHI, Takashi HASEBA, Akitoshi TAKEUCHI, Keisuke HASHIZUME
  • Signal detector for a semiconductor memory device
    Patent number: 3931538
    Abstract: Signal detector consisting of a flip-flop that is provided with at least a pair of inverters with the output of each inverter connected with the input of the other through a positive feedback loop and means to trigger said flip-flop at arbitrary times, the input of one of said inverters being connected to the signal line with both inverters designed to be electrically unbalanced between themselves.
    Type: Grant
    Filed: October 9, 1973
    Date of Patent: January 6, 1976
    Assignee: Hitachi, Ltd.
    Inventors: Kiyoo Itoh, Keisuke Hashizume, Katsuhiro Shimohigashi