Patents by Inventor Yoshihiro Koto

Yoshihiro Koto 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: 11965323
    Abstract: According to the embodiment, a toilet device includes a nozzle, a flow channel, a heat exchanger, and a flow channel unit. The flow channel unit is located upstream or downstream of the heat exchanger in the flow channel. The flow channel unit includes a flow rate sensor and a vacuum breaker. The flow rate sensor detects a flow rate of water. The vacuum breaker suppresses a backflow of water. The flow rate sensor includes a first case part and a sensor part. The sensor part is housed inside the first case part. The vacuum breaker includes a second case part and a valve part. The valve part is housed inside the second case part. At least a part of the first case part and at least a part of the second case part is formed of a continuous member.
    Type: Grant
    Filed: August 3, 2022
    Date of Patent: April 23, 2024
    Assignee: TOTO LTD.
    Inventors: Ikko Hatta, Shonosuke Sawa, Mizuki Ide, Yoshihiro Koto
  • Publication number: 20230068488
    Abstract: According to the embodiment, a toilet device includes a nozzle, a flow channel, a heat exchanger, and a flow channel unit. The flow channel unit is located upstream or downstream of the heat exchanger in the flow channel. The flow channel unit includes a flow rate sensor and a vacuum breaker. The flow rate sensor detects a flow rate of water. The vacuum breaker suppresses a backflow of water. The flow rate sensor includes a first case part and a sensor part. The sensor part is housed inside the first case part. The vacuum breaker includes a second case part and a valve part. The valve part is housed inside the second case part. At least a part of the first case part and at least a part of the second case part is formed of a continuous member.
    Type: Application
    Filed: August 3, 2022
    Publication date: March 2, 2023
    Inventors: Ikko HATTA, Shonosuke SAWA, Mizuki IDE, Yoshihiro KOTO
  • Patent number: 11008746
    Abstract: A sanitary washing device is on a toilet including a bowl. The sanitary washing device includes a casing, a nozzle, a shielding plate, and a controller. The nozzle washes a human body private part. The nozzle is advanceable and retractable between a storage position and an advanced position. The shielding plate is rotatable with respect to the casing and positioned frontward of the nozzle when the nozzle is at the storage position. The controller controls an operation of the nozzle. The nozzle has a first spout hole squirting water. The shielding plate is at a first position when the nozzle is at the advanced position. The controller performs a frontward washing operation of squirting water after using the sanitary washing device. A part of the shielding plate is positioned frontward of a front end part of the nozzle in the frontward washing operation.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: May 18, 2021
    Assignee: TOTO LTD.
    Inventors: Yuki Ko, Masayuki Mochita, Yoshihiro Koto
  • Publication number: 20200392713
    Abstract: According to the embodiment, a sanitary washing device is provided on a toilet including a bowl. The sanitary washing device includes a casing, a nozzle, a shielding plate, and a controller. The nozzle washes a human body private part. The nozzle is advanceable and retractable between a storage position and an advanced position. The shielding plate is provided rotatably with respect to the casing and positioned frontward of the nozzle when the nozzle is at the storage position. The controller controls an operation of the nozzle. The nozzle has a first spout hole squirting water. The shielding plate is at a first position when the nozzle is at the advanced position. The controller performs a frontward washing operation of squirting water after using the sanitary washing device. A part of the shielding plate is positioned frontward of a front end part of the nozzle in the frontward washing operation.
    Type: Application
    Filed: May 20, 2020
    Publication date: December 17, 2020
    Inventors: Yuki Ko, Masayuki Mochita, Yoshihiro Koto
  • Patent number: 10724221
    Abstract: According to one embodiment, a sanitary washing device includes a nozzle being capable of discharging water toward a human body private part, a solenoid valve provided on a water channel between a water supply source and the nozzle, the solenoid valve opening and shutting the water channel, and a pressure regulator valve provided on the water channel between the solenoid valve and the nozzle, the pressure regulator valve regulating a pressure of water flowing through the water channel. At least a portion of the pressure regulator valve is disposed in a range to which the solenoid valve is projected from upward to downward.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: July 28, 2020
    Assignee: TOTO LTD.
    Inventors: Takakuni Yoshida, Masayuki Mochita, Yoshihiro Koto, Takeshi Yamakawa
  • Publication number: 20180058054
    Abstract: According to one embodiment, a sanitary washing device includes a nozzle being capable of discharging water toward a human body private part, a solenoid valve provided on a water channel between a water supply source and the nozzle, the solenoid valve opening and shutting the water channel, and a pressure regulator valve provided on the water channel between the solenoid valve and the nozzle, the pressure regulator valve regulating a pressure of water flowing through the water channel. At least a portion of the pressure regulator valve is disposed in a range to which the solenoid valve is projected from upward to downward.
    Type: Application
    Filed: August 1, 2017
    Publication date: March 1, 2018
    Inventors: Takakuni Yoshida, Masayuki Mochita, Yoshihiro Koto, Takeshi Yamakawa