Patents by Inventor Kazumi Tsuchimichi

Kazumi Tsuchimichi 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).

  • Patent number: 10965211
    Abstract: A technology for suppressing a performance degradation of a solar battery caused by PID is provided. A conversion device includes a DC/DC converter and a control part. A solar battery is connected to an input end of the DC/DC converter. When direct-current power generated by the solar battery is converted and output, the DC/DC converter makes a potential of a negative electrode of the solar battery to be higher than a potential in a negative electrode of the output when the power input from the solar battery exceeds a prescribed value. The control part changes a voltage of the power output from the solar battery to detect a peak value of the power, and stops the operation of the DC/DC converter when the peak value is smaller than the prescribed value.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: March 30, 2021
    Assignee: OMRON Corporation
    Inventors: Hirokazu Ehara, Kazumi Tsuchimichi, Kenji Kobayashi, Yasuhiro Tsubota
  • Patent number: 10461645
    Abstract: A power supply system for recovering degraded performance of a solar cell due to PID is provided. The power supply system includes a solar cell, a non-isolated type DC/DC converter that boosts a DC voltage from the solar cell input from an input end with a predetermined boosting ratio and outputs a DC voltage from an output end, and an inverter that converts a DC voltage output from the output end of the DC/DC converter into an AC voltage, the power supply system being connected to an external power system for system interconnection, wherein the power supply system includes a potential adjustment device for applying a voltage of an external power system to the solar cell via the inverter to set a ground potential of a negative electrode of the solar cell to positive when an output of the solar cell is smaller than a predetermined value.
    Type: Grant
    Filed: November 23, 2017
    Date of Patent: October 29, 2019
    Assignee: OMRON Corporation
    Inventors: Yasuhiro Tsubota, Kenji Kobayashi, Takuji Kumagai, Naoki Maki, Kazumi Tsuchimichi
  • Publication number: 20190288600
    Abstract: A technology for suppressing a performance degradation of a solar battery caused by PID is provided. A conversion device includes a DC/DC converter and a control part. A solar battery is connected to an input end of the DC/DC converter. When direct-current power generated by the solar battery is converted and output, the DC/DC converter makes a potential of a negative electrode of the solar battery to be higher than a potential in a negative electrode of the output when the power input from the solar battery exceeds a prescribed value. The control part changes a voltage of the power output from the solar battery to detect a peak value of the power, and stops the operation of the DC/DC converter when the peak value is smaller than the prescribed value.
    Type: Application
    Filed: January 18, 2019
    Publication date: September 19, 2019
    Applicant: OMRON Corporation
    Inventors: Hirokazu EHARA, Kazumi TSUCHIMICHI, Kenji KOBAYASHI, Yasuhiro TSUBOTA
  • Patent number: 10381834
    Abstract: The disclosure reduces the size and cost of a power conditioner. A power conditioner including a DC/DC converter connected to a power supply device and an inverter connected to the DC/DC converter includes: a plus side wiring connecting the DC/DC converter and the inverter; a minus side wiring connecting the DC/DC converter and the inverter; a capacitor having one end connected to the plus side wiring and an other end connected to the minus side wiring; and a fuse provided on the minus side wiring, wherein the DC/DC converter has at least one switching element; the other end of the capacitor is connected to a first connection point provided on the minus side wiring on the DC/DC converter side with respect to the fuse; and the switching element is connected to a second connection point provided on the minus side wiring on the inverter side with respect to the fuse.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: August 13, 2019
    Assignee: OMRON Corporation
    Inventors: Kenji Kobayashi, Kazumi Tsuchimichi, Wataru Okada, Mamoru Yoshida, Gun Eto, Koji Fujita, Takayoshi Tawaragi
  • Patent number: 10340845
    Abstract: A voltage transform part transforms the direct-current power input to an input part. A first input and output part outputs the transformed direct-current power to a battery unit and to which direct-current power is input from the battery unit. A conversion part converts the direct-current power input to the input part into alternating-current power. A second input and output part outputs the alternating-current power to a power system or a load and to which an alternating-current power is input from the power system. The conversion part converts the alternating-current power input to the second input and output part into direct-current power. The second voltage transform part transforms the direct-current power converted by the conversion part and transforms the direct-current power input to the first input and output part. The conversion part converts the direct-current power transformed by the second voltage transform part into alternating-current power.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: July 2, 2019
    Assignee: OMRON Corporation
    Inventors: Atsuo Minato, Katsumi Ohashi, Arata Yoneda, Kazumi Tsuchimichi, Katsutaka Tanabe, Junichiro Yamada, Yasuhiro Tsubota
  • Patent number: 10320327
    Abstract: A power storage power conditioner includes an input part, a voltage-transforming part, a first input-output part, a converting part and a second input-output part. The voltage-transforming part transforms the voltage of DC power from the input part and the converting part into a second predetermined voltage. The first input-output part outputs the DC power of the voltage-transforming part to a battery unit, and inputs DC power from the battery unit. The voltage-transforming part transforms a voltage of the DC power from the first input-output part into a third predetermined voltage. The converting part converts the DC power from the input part and the voltage-transforming part into AC power. The second input-output part outputs the AC power to a power system or a load, and inputs AC power from the power system. The converting part converts the AC power from the second input-output part into DC power.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: June 11, 2019
    Assignee: OMRON Corporation
    Inventors: Kunio Aono, Kazumi Tsuchimichi, Kotaro Nakamura, Atsuo Minato
  • Publication number: 20190165725
    Abstract: A voltage transform part transforms the direct-current power input to an input part. A first input and output part outputs the transformed direct-current power to a battery unit and to which direct-current power is input from the battery unit. A conversion part converts the direct-current power input to the input part into alternating-current power. A second input and output part outputs the alternating-current power to a power system or a load and to which an alternating-current power is input from the power system. The conversion part converts the alternating-current power input to the second input and output part into direct-current power. The second voltage transform part transforms the direct-current power converted by the conversion part and transforms the direct-current power input to the first input and output part. The conversion part converts the direct-current power transformed by the second voltage transform part into alternating-current power.
    Type: Application
    Filed: September 13, 2018
    Publication date: May 30, 2019
    Applicant: OMRON Corporation
    Inventors: Atsuo MINATO, Katsumi OHASHI, Arata YONEDA, Kazumi TSUCHIMICHI, Katsutaka TANABE, Junichiro YAMADA, Yasuhiro TSUBOTA
  • Publication number: 20190165726
    Abstract: A power storage power conditioner includes an input part, a voltage-transforming part, a first input-output part, a converting part and a second input-output part. The voltage-transforming part transforms the voltage of DC power from the input part and the converting part into a second predetermined voltage. The first input-output part outputs the DC power of the voltage-transforming part to a battery unit, and inputs DC power from the battery unit. The voltage-transforming part transforms a voltage of the DC power from the first input-output part into a third predetermined voltage. The converting part converts the DC power from the input part and the voltage-transforming part into AC power. The second input-output part outputs the AC power to a power system or a load, and inputs AC power from the power system. The converting part converts the AC power from the second input-output part into DC power.
    Type: Application
    Filed: September 13, 2018
    Publication date: May 30, 2019
    Applicant: OMRON Corporation
    Inventors: Kunio AONO, Kazumi TSUCHIMICHI, Kotaro NAKAMURA, Atsuo MINATO
  • Publication number: 20180234018
    Abstract: A power supply system for recovering degraded performance of a solar cell due to PID is provided. The power supply system includes a solar cell, a non-isolated type DC/DC converter that boosts a DC voltage from the solar cell input from an input end with a predetermined boosting ratio and outputs a DC voltage from an output end, and an inverter that converts a DC voltage output from the output end of the DC/DC converter into an AC voltage, the power supply system being connected to an external power system for system interconnection, wherein the power supply system includes a potential adjustment device for applying a voltage of an external power system to the solar cell via the inverter to set a ground potential of a negative electrode of the solar cell to positive when an output of the solar cell is smaller than a predetermined value.
    Type: Application
    Filed: November 23, 2017
    Publication date: August 16, 2018
    Applicant: OMRON Corporation
    Inventors: Yasuhiro TSUBOTA, Kenji KOBAYASHI, Takuji KUMAGAI, Naoki MAKI, Kazumi TSUCHIMICHI
  • Publication number: 20060187444
    Abstract: The measurement light radiated from a radiator 2 enters an object of inspection through an integrating sphere 22. The measurement light is reflected on a base 52 of the object or a thin film 54. Further, the reflected light enters the integrating sphere 22 and is equalized in the integrating sphere 22. After that, the equalized reflected light is led to a light splitter 12 through an optical fiber 10. The light splitter 12 splits the reflected light in the order of wavelength, and applies an electrical signal corresponding to the intensity spectrum to an arithmetic processor 14. The arithmetic processor 14 determines the state of the thin film 54 formed on the surface of the object based on the electrical signal received from the light splitter 12.
    Type: Application
    Filed: February 1, 2006
    Publication date: August 24, 2006
    Inventors: Kazumi Tsuchimichi, Takeshi Takakura
  • Patent number: D574737
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: August 12, 2008
    Assignee: Omron Corporation
    Inventors: Koji Shimada, Takashi Kamei, Masahiro Kurokawa, Gaku Shiramizu, Kosuke Sugiyama, Mai Takami, Yuki Taniyasu, Kazumi Tsuchimichi, Yuichi Doi, Seitaro Hirano, Kenji Horie, Takuya Murata, Koyuru Nakano