Patents by Inventor Yoshiya NISHIMAKI

Yoshiya NISHIMAKI 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).

  • Air conditioner and rectifier
    Patent number: 10734910
    Abstract: Disclosed herein is an air conditioner including: a rectifier including a plurality of capacitors connected in series to each other, a switching device configured to control a flow of current supplied to the respective capacitors to charge or discharge the plurality of capacitors, a voltage detector configured to detect an output voltage of the plurality of capacitors, and a current detector configured to detect the current; and an inverter configured to generate alternating current by receiving an output voltage of the rectifier.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: August 4, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yuichi Takeda, Yasuyuki Yamada, Yoshiya Nishimaki
  • Motor driving device, air conditioning device including same, and control method for motor driving device
    Patent number: 10523147
    Abstract: An aspect of the disclosed invention calculates a value of an inductance of a synchronous motor whose characteristic is unclear while suppressing a failure of the synchronous motor. A motor driving device according to an embodiment of the disclosed invention comprises: a motor; an inverter for supplying an alternating voltage to the motor; a current meter for measuring an introduced current flowing through the motor on the basis of the alternating voltage; and a control unit for controlling the inverter to change the size of the alternating voltage in stages, and calculating an inductance of the motor on the basis of the introduced current measured by the current meter.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: December 31, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoshiya Nishimaki, Yuichi Takeda
  • AIR CONDITIONER AND RECTIFIER
    Publication number: 20190128555
    Abstract: Disclosed herein is an air conditioner including: a rectifier including a plurality of capacitors connected in series to each other, a switching device configured to control a flow of current supplied to the respective capacitors to charge or discharge the plurality of capacitors, a voltage detector configured to detect an output voltage of the plurality of capacitors, and a current detector configured to detect the current; and an inverter configured to generate alternating current by receiving an output voltage of the rectifier.
    Type: Application
    Filed: October 31, 2018
    Publication date: May 2, 2019
    Inventors: Yuichi TAKEDA, Yasuyuki YAMADA, Yoshiya NISHIMAKI
  • MOTOR DRIVING DEVICE, AIR CONDITIONING DEVICE INCLUDING SAME, AND CONTROL METHOD FOR MOTOR DRIVING DEVICE
    Publication number: 20190020294
    Abstract: An aspect of the disclosed invention calculates a value of an inductance of a synchronous motor whose characteristic is unclear while suppressing a failure of the synchronous motor. A motor driving device according to an embodiment of the disclosed invention comprises: a motor; an inverter for supplying an alternating voltage to the motor; a current meter for measuring an introduced current flowing through the motor on the basis of the alternating voltage; and a control unit for controlling the inverter to change the size of the alternating voltage in stages, and calculating an inductance of the motor on the basis of the introduced current measured by the current meter.
    Type: Application
    Filed: December 15, 2016
    Publication date: January 17, 2019
    Inventors: Yoshiya NISHIMAKI, Yuichi TAKEDA