Patents by Inventor Shoichi Tsuiki

Shoichi Tsuiki 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: 11697932
    Abstract: According to an embodiment, a toilet device includes a detector configured to detect at least one of a water level inside a flush toilet or an indicator associated with the water level, a clog determiner determining a clog state of the flush toilet based on a detection result of the detector, and a controller determining, based on a determination result of the clog determiner, whether or not to prohibit a flushing water supply to the flush toilet. The controller sets a flush prohibition time at least after the flushing water supply to the flush toilet has ended. A flush operation for flushing the flush toilet not is accepted temporarily in the flush prohibition time. The clog determiner determines the clog state of the flush toilet based on the detection result of the detector within the flush prohibition time or directly after the flush prohibition time.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: July 11, 2023
    Assignee: TOTO LTD.
    Inventors: Shoichi Tsuiki, Motoki Kobayashi, Yuya Masahira
  • Patent number: 11466440
    Abstract: According to the embodiment, a toilet device includes a detector and a controller. The detector is detecting whether or not flush water is at a position lower than a full level and higher than a seal level at a surface of a bowl of a flush toilet. The controller is determining a clog state of the flush toilet based on a detection result of the detector after a flush water supplier is closed. The flush water supplier is located in a flow channel discharging flush water into the bowl. The position of the detection region of the detector at the surface of the bowl is separated from flush water flowing in a vertical direction from a water discharge port of the flow channel toward a bottom portion of the bowl after the flush water supplier is closed.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: October 11, 2022
    Assignee: TOTO LTD.
    Inventors: Motoki Kobayashi, Shoichi Tsuiki, Yuya Masahira, Hirofumi Nagatomi, Yasuo Nambu
  • Publication number: 20210062490
    Abstract: According to the embodiment, a toilet device includes a detector and a controller. The detector is detecting whether or not flush water is at a position lower than a full level and higher than a seal level at a surface of a bowl of a flush toilet. The controller is determining a clog state of the flush toilet based on a detection result of the detector after a flush water supplier is closed. The flush water supplier is located in a flow channel discharging flush water into the bowl. The position of the detection region of the detector at the surface of the bowl is separated from flush water flowing in a vertical direction from a water discharge port of the flow channel toward a bottom portion of the bowl after the flush water supplier is closed.
    Type: Application
    Filed: June 1, 2020
    Publication date: March 4, 2021
    Inventors: Motoki Kobayashi, Shoichi Tsuiki, Yuya Masahira, Hirofumi Nagatomi, Yasuo Nambu
  • Patent number: 10779693
    Abstract: According to one embodiment, a sanitary washing device includes a main part, a toilet seat, and a sensor. The toilet seat is supported to be rotatable. The sensor is provided in an interior of the main part and uses a radio wave to detect a user in front of the main part. A position of the sensor does not change. In a state in which the toilet seat is closed, the user in front of the main part is detected by the sensor in a first region and a second region higher than the first region. In a state in which the toilet seat is open, the user in front of the main part is detected by the sensor in the first region without the user in front of the main part being detected by the sensor in the second region.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: September 22, 2020
    Assignee: TOTO LTD.
    Inventors: Shoichi Tsuiki, Takeshi Yasugata, Yuta Tanogashira, Masami Tsujita
  • Patent number: 10731325
    Abstract: According to one embodiment, a sanitary washing device includes a main part, a toilet lid, and a radio wave sensor. The main part includes a toilet lid opening/closing part including a metal. The toilet lid is pivotally supported by the toilet lid opening/closing part to be rotatable with respect to the main part. The radio wave sensor is provided in an interior of the main part and uses a radio wave to detect a user in front of the main part. The radio wave sensor is positioned further frontward than the toilet lid opening/closing part. At least a part of the radio wave sensor overlaps at least a part of the toilet lid opening/closing part in a horizontal direction.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: August 4, 2020
    Assignee: TOTO LTD.
    Inventors: Yuta Tanogashira, Shoichi Tsuiki, Takeshi Yasugata, Masami Tsujita
  • Patent number: 10705197
    Abstract: According to one embodiment, a sensor device includes a transmitter part, a receiver part, a signal generation part, and a determination part. The transmitter part is configured to emit a radio wave outside as a transmission wave. The receiver part is configured to receive a reflection wave reflected by an object as a reception wave. The signal generation part is configured to generate a first output signal generated based on the transmission wave and the reception wave, a second output signal provided with a phase different from that of the first output signal, and a third output signal generated based on the first output signal and the second output signal. The determination part is configured to determine presence or absence of an object based on the first output signal, the second output signal, and the third output signal.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: July 7, 2020
    Assignee: TOTO LTD.
    Inventors: Shoichi Tsuiki, Yuta Tanogashira
  • Patent number: 10694907
    Abstract: According to one embodiment, a sanitary washing device includes a toilet seat, a main part, a radio wave sensor, and a circuit board, wherein the main part is provided at a rear of the toilet seat; the radio wave sensor is provided in an interior of the main part and uses a radio wave to detect a user in front of the main part; and the circuit board includes a metal member and is positioned between the toilet seat and the radio wave sensor in a state in which the toilet seat is closed.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: June 30, 2020
    Assignee: TOTO LTD.
    Inventors: Masami Tsujita, Shoichi Tsuiki, Yuta Tanogashira, Takeshi Yasugata
  • Publication number: 20200123752
    Abstract: According to an embodiment, a toilet device includes a detector configured to detect at least one of a water level inside a flush toilet or an indicator associated with the water level, a clog determiner determining a clog state of the flush toilet based on a detection result of the detector, and a controller determining, based on a determination result of the clog determiner, whether or not to prohibit a flushing water supply to the flush toilet. The controller sets a flush prohibition time at least after the flushing water supply to the flush toilet has ended. A flush operation for flushing the flush toilet not is accepted temporarily in the flush prohibition time. The clog determiner determines the clog state of the flush toilet based on the detection result of the detector within the flush prohibition time or directly after the flush prohibition time.
    Type: Application
    Filed: September 11, 2019
    Publication date: April 23, 2020
    Inventors: Shoichi Tsuiki, Motoki Kobayashi, Yuya Masahira
  • Patent number: 10538904
    Abstract: According to one embodiment, a sanitary washing device includes a main part, a toilet seat, and a radio wave sensor. The main part includes a toilet seat movable part including a metal. The toilet seat is supported by the toilet seat movable part to be rotatable. The radio wave sensor is provided in an interior of the main part and uses a radio wave to detect a user in front of the main part. The radio wave sensor includes a controller that determines a state of the user and outputs a signal relating to a determination result. The toilet seat movable part opens and closes the toilet seat based on the signal. The controller is positioned further rearward than the toilet seat movable part. At least a part of the controller overlaps at least a part of the toilet seat movable part in a frontward/rearward direction.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: January 21, 2020
    Assignee: TOTO LTD.
    Inventors: Masami Tsujita, Shoichi Tsuiki, Yuta Tanogashira, Takeshi Yasugata
  • Patent number: 10478027
    Abstract: According to one embodiment, a toilet seat device includes a toilet seat, and a Doppler sensor using radio waves. An opened state of the toilet seat is sensed when approach of a user to the toilet seat is sensed based on a sensing signal outputted by the Doppler sensor. It is regarded that use is in progress for urination by the user when the toilet seat is in the opened state. In a state of being regarded that use is in progress for urination, a post-use operation is performed after sensing leaving of the user from the toilet seat based on the sensing signal.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: November 19, 2019
    Assignee: TOTO LTD.
    Inventors: Masami Tsujita, Shoichi Tsuiki, Yuta Tanogashira
  • Patent number: 10450734
    Abstract: According to one embodiment, a sanitary washing device includes a main part and a sensor. The main part includes a nozzle and a flow channel switching unit. The flow channel switching unit includes a motor and switches a flow channel of water flowing toward the nozzle by an operation of the motor. The sensor is provided in an interior of the main part and includes a transmitter/receiver and a controller. The transmitter/receiver radiates a radio wave and receives the radio wave reflected by an user. The controller determines a state of the user based on the radio wave received by the transmitter/receiver and outputs a signal relating to a determination result. The main part controls an operation of the flow channel switching unit and the nozzle based on the signal. The nozzle is positioned between the sensor and the motor in a width direction of the nozzle.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: October 22, 2019
    Assignee: TOTO LTD.
    Inventors: Masami Tsujita, Shoichi Tsuiki, Yuta Tanogashira, Takeshi Yasugata
  • Patent number: 10267025
    Abstract: A sanitary device includes a wet area device includes a radio wave sensor, a control section and a controlled section. The radio wave sensor is configured to output a sensing signal concerning a water flow. The control section is configured to determine a state of the water flow based on phase information of the sensing signal and to output a control signal based on a determination result. The controlled section is configured to be controlled based on the control signal.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: April 23, 2019
    Assignee: TOTO LTD.
    Inventors: Yuta Tanogashira, Shoichi Tsuiki, Masami Tsujita
  • Patent number: 10231583
    Abstract: A toilet apparatus according to an embodiment includes a toilet seat, a main part, a toilet, a tank, and a radio wave sensor. The toilet seat is pivotally supported by the main part to be openable and closable. The toilet is provided under the main part. The main part is placed on the toilet. The tank is provided inside the toilet. Water for washing the toilet is stored in the tank. The radio wave sensor is disposed higher than the tank. The radio wave sensor detects a human body by radiating a radio wave frontward of the main part.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: March 19, 2019
    Assignee: TOTO LTD.
    Inventors: Yuta Tanogashira, Shoichi Tsuiki, Takeshi Yasugata, Kenichi Okamoto
  • Publication number: 20180344111
    Abstract: According to one embodiment, a sanitary washing device includes a main part, a toilet seat, and a sensor. The toilet seat is supported to be rotatable. The sensor is provided in an interior of the main part and uses a radio wave to detect a user in front of the main part. A position of the sensor does not change. In a state in which the toilet seat is closed, the user in front of the main part is detected by the sensor in a first region and a second region higher than the first region. In a state in which the toilet seat is open, the user in front of the main part is detected by the sensor in the first region without the user in front of the main part being detected by the sensor in the second region.
    Type: Application
    Filed: May 31, 2018
    Publication date: December 6, 2018
    Inventors: Shoichi Tsuiki, Takeshi Yasugata, Yuta Tanogashira, Masami Tsujita
  • Publication number: 20180347167
    Abstract: According to one embodiment, a sanitary washing device includes a main part, a toilet seat, and a radio wave sensor. The main part includes a toilet seat movable part including a metal. The toilet seat is supported by the toilet seat movable part to be rotatable. The radio wave sensor is provided in an interior of the main part and uses a radio wave to detect a user in front of the main part. The radio wave sensor includes a controller that determines a state of the user and outputs a signal relating to a determination result. The toilet seat movable part opens and closes the toilet seat based on the signal. The controller is positioned further rearward than the toilet seat movable part. At least a part of the controller overlaps at least a part of the toilet seat movable part in a frontward/rearward direction.
    Type: Application
    Filed: June 1, 2018
    Publication date: December 6, 2018
    Inventors: Masami Tsujita, Shoichi Tsuiki, Yuta Tanogashira, Takeshi Yasugata
  • Publication number: 20180344110
    Abstract: According to one embodiment, a sanitary washing device includes a toilet seat, a main part, a radio wave sensor, and a circuit board, wherein the main part is provided at a rear of the toilet seat; the radio wave sensor is provided in an interior of the main part and uses a radio wave to detect a user in front of the main part; and the circuit board includes a metal member and is positioned between the toilet seat and the radio wave sensor in a state in which the toilet seat is closed.
    Type: Application
    Filed: May 31, 2018
    Publication date: December 6, 2018
    Inventors: Masami Tsujita, Shoichi Tsuiki, Yuta Tanogashira, Takeshi Yasugata
  • Publication number: 20180347166
    Abstract: According to one embodiment, a sanitary washing device includes a main part, a toilet lid, and a radio wave sensor. The main part includes a toilet lid opening/closing part including a metal. The toilet lid is pivotally supported by the toilet lid opening/closing part to be rotatable with respect to the main part. The radio wave sensor is provided in an interior of the main part and uses a radio wave to detect a user in front of the main part. The radio wave sensor is positioned further frontward than the toilet lid opening/closing part. At least a part of the radio wave sensor overlaps at least a part of the toilet lid opening/closing part in a horizontal direction.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 6, 2018
    Inventors: Yuta Tanogashira, Shoichi Tsuiki, Takeshi Yasugata, Masami Tsujita
  • Publication number: 20180347169
    Abstract: According to one embodiment, a sanitary washing device includes a main part and a sensor. The main part includes a nozzle and a flow channel switching unit. The flow channel switching unit includes a motor and switches a flow channel of water flowing toward the nozzle by an operation of the motor. The sensor is provided in an interior of the main part and includes a transmitter/receiver and a controller. The transmitter/receiver radiates a radio wave and receives the radio wave reflected by an user. The controller determines a state of the user based on the radio wave received by the transmitter/receiver and outputs a signal relating to a determination result. The main part controls an operation of the flow channel switching unit and the nozzle based on the signal. The nozzle is positioned between the sensor and the motor in a width direction of the nozzle.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 6, 2018
    Inventors: Masami Tsujita, Shoichi Tsuiki, Yuta Tanogashira, Takeshi Yasugata
  • Patent number: 10136773
    Abstract: A toilet device includes a toilet seat device, a radio wave sensor, and a controller. The toilet seat device is provided on a toilet bowl. The controller is configured to operate the toilet seat device based on a signal outputted from the radio wave sensor. The radio wave sensor is being operable for detecting presence of a human body in a first area including front of the toilet seat device, detecting motion of a human body in a second area including the front of the toilet seat device and a region outside the first area, and determining sensing of the human body based on detection result of the motion of the human body and detection result of the presence of the human body.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: November 27, 2018
    Assignee: TOTO LTD.
    Inventors: Shoichi Tsuiki, Yuta Tanogashira, Masami Tsujita
  • Patent number: 10136776
    Abstract: A toilet apparatus according to an embodiment includes a human body detector and a controlled part. The toilet apparatus is mounted to a toilet. The human body detector radiates a radio wave and detects a human body based on the signal that is obtained. The human body detector outputs a control signal based on the detection result. The controlled part is controlled based on the control signal. The human body detector has two or more establishment times from when the signal is obtained until when the detection result based on the signal is established.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: November 27, 2018
    Assignee: TOTO LTD.
    Inventors: Yuta Tanogashira, Shoichi Tsuiki