Patents by Inventor Yuichi Doki

Yuichi Doki 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: 11874198
    Abstract: A tire inspection device includes a gas sensor disposed outside of a tire and facing an outer surface of the tire. The gas sensor detects a gas that fills the tire.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: January 16, 2024
    Assignee: YAMAHA FINE TECHNOLOGIES CO., LTD.
    Inventors: Yuichi Doki, Takeshi Kato, Akane Iizuka
  • Patent number: 11454564
    Abstract: There is provided a gas sensor fault detection device that detects a sensor fault in a gas leak inspection device. The gas sensor fault detection device includes: a gas blowing unit that blows a gas toward a detection area of a gas sensor of the gas leak inspection device; and a position fixing unit that fixes a position of the gas blowing unit with reference to a hypothetical gas leak position of an inspection target being inspected by the gas leak inspection device.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: September 27, 2022
    Assignee: YAMAHA FINE TECHNOLOGIES CO., LTD.
    Inventors: Yuichi Doki, Takeshi Kato
  • Publication number: 20220276115
    Abstract: A tire inspection device includes a gas sensor disposed outside of a tire and facing an outer surface of the tire. The gas sensor detects a gas that fills the tire.
    Type: Application
    Filed: May 18, 2022
    Publication date: September 1, 2022
    Inventors: Yuichi DOKI, Takeshi KATO, Akane IIZUKA
  • Patent number: 11366037
    Abstract: A tire inspection device includes a gas sensor disposed outside of a tire and facing an outer surface of the tire. The gas sensor detects a gas that fills the tire.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: June 21, 2022
    Assignee: YAMAHA FINE TECHNOLOGIES CO., LTD.
    Inventors: Yuichi Doki, Takeshi Kato, Akane Iizuka
  • Patent number: 11358571
    Abstract: A wheeled tire includes a tire, and a wheel disposed on the tire. A space between the tire and the wheel is filled with a filler gas. The filler gas includes nitrogen gas having a concentration equal to or greater than a concentration of nitrogen gas in air, and hydrogen gas having a concentration of 0.5% or more. A concentration of oxygen gas in the filler gas is less than a concentration of oxygen gas in air.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: June 14, 2022
    Assignee: YAMAHA FINE TECHNOLOGIES CO., LTD.
    Inventors: Takeshi Kato, Hirotaka Takeyama, Yuichi Doki
  • Patent number: 11285446
    Abstract: A mixed gas supply device includes: a hydrogen gas generation unit that includes a hydrogen generator, the hydrogen generator generating hydrogen gas by decomposition of water and supplying the hydrogen gas; a nitrogen gas generation unit that includes a filter, the filter separating nitrogen gas from air and supplying the nitrogen gas; a gas mixing unit that mixes the supplied hydrogen gas and the supplied nitrogen gas and generates mix gas including the hydrogen gas and the nitrogen gas; and a single base on which the hydrogen gas generation unit, the nitrogen gas generation unit, and the gas mixing unit are mounted, the hydrogen gas generation unit, the nitrogen gas generation unit, and the gas mixing unit being integrated. The gas mixing unit supplies the generated mixed gas to outside.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: March 29, 2022
    Assignee: YAMAHA FINE TECHNOLOGIES CO., LTD.
    Inventors: Hidemi Takahashi, Takeshi Kato, Yuichi Doki, Hisashi Ichinokiyama
  • Publication number: 20200156599
    Abstract: A wheeled tire includes a tire, and a wheel disposed on the tire. A space between the tire and the wheel is filled with a filler gas. The filler gas includes nitrogen gas having a concentration equal to or greater than a concentration of nitrogen gas in air, and hydrogen gas having a concentration of 0.5% or more. A concentration of oxygen gas in the filler gas is less than a concentration of oxygen gas in air.
    Type: Application
    Filed: January 23, 2020
    Publication date: May 21, 2020
    Inventors: Takeshi KATO, Hirotaka TAKEYAMA, Yuichi DOKI
  • Publication number: 20200158591
    Abstract: A tire inspection device includes a gas sensor disposed outside of a tire and facing an outer surface of the tire. The gas sensor detects a gas that fills the tire.
    Type: Application
    Filed: January 23, 2020
    Publication date: May 21, 2020
    Inventors: Yuichi DOKI, Takeshi KATO, Akane IIZUKA
  • Publication number: 20200158593
    Abstract: There is provided a gas sensor fault detection device that detects a sensor fault in a gas leak inspection device. The gas sensor fault detection device includes: a gas blowing unit that blows a gas toward a detection area of a gas sensor of the gas leak inspection device; and a position fixing unit that fixes a position of the gas blowing unit with reference to a hypothetical gas leak position of an inspection target being inspected by the gas leak inspection device.
    Type: Application
    Filed: January 23, 2020
    Publication date: May 21, 2020
    Inventors: Yuichi DOKI, Takeshi KATO
  • Publication number: 20190232235
    Abstract: A mixed gas supply device includes: a hydrogen gas generation unit that includes a hydrogen generator, the hydrogen generator generating hydrogen gas by decomposition of water and supplying the hydrogen gas; a nitrogen gas generation unit that includes a filter, the filter separating nitrogen gas from air and supplying the nitrogen gas; a gas mixing unit that mixes the supplied hydrogen gas and the supplied nitrogen gas and generates mix gas including the hydrogen gas and the nitrogen gas; and a single base on which the hydrogen gas generation unit, the nitrogen gas generation unit, and the gas mixing unit are mounted, the hydrogen gas generation unit, the nitrogen gas generation unit, and the gas mixing unit being integrated. The gas mixing unit supplies the generated mixed gas to outside.
    Type: Application
    Filed: April 12, 2019
    Publication date: August 1, 2019
    Inventors: Hidemi TAKAHASHI, Takeshi KATO, Yuichi DOKI, Hisashi ICHINOKIYAMA
  • Patent number: 8433436
    Abstract: A substrate placing position adjusting method which acquires data on a substrate placing position where a substrate carrying unit is required to place a substrate on a substrate holding device capable of rotating about a vertical axis and included in a processing unit for processing a substrate substantially horizontally held by the substrate holding device, said substrate placing position adjusting method comprising the steps of: transferring a jig from the substrate carrying unit to the substrate holding device; measuring centrifugal acceleration imparted to a measuring position in the jig when the substrate holding device holding the jig is rotated at a fixed angular velocity; and calculating an eccentricity of the measuring position from a rotation center of the substrate holding device on the basis of a centrifugal acceleration.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: April 30, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Yuichi Doki, Tokutarou Hayashi
  • Publication number: 20120072005
    Abstract: A substrate placing position adjusting method which acquires data on a substrate placing position where a substrate carrying unit is required to place a substrate on a substrate holding device capable of rotating about a vertical axis and included in a processing unit for processing a substrate substantially horizontally held by the substrate holding device, said substrate placing position adjusting method comprising the steps of: transferring a jig from the substrate carrying unit to the substrate holding device; measuring centrifugal acceleration imparted to a measuring position in the jig when the substrate holding device holding the jig is rotated at a fixed angular velocity; and calculating an eccentricity of the measuring position from a rotation center of the substrate holding device on the basis of a centrifugal acceleration.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 22, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Yuichi Doki, Tokutarou Hayashi
  • Patent number: 8055376
    Abstract: In a substrate processing system for processing a substrate, such as a wafer W, held by a substrate holding device rotatable about a vertical axis, such as a spin chuck, a jig is placed on the substrate holding device, and centrifugal acceleration imparted to a predetermined measuring position on the jig and an eccentricity of the measuring position from the rotation center of the spin chuck are determined. The position of the rotation center is determined on the basis of centrifugal accelerations imparted to the measuring position when the jig is placed at three different positions and eccentricities of the measuring position from the rotation center when the jig is placed at the three different positions. Data on a substrate placing position, the center of the substrate placed at which coincides with the rotation center, is stored as data of a substrate placing position at which a substrate is to be placed.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: November 8, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Yuichi Doki, Tokutarou Hayashi
  • Patent number: 7884622
    Abstract: In the present invention, a position detecting substrate having a capacitive sensor is supported on a transfer arm and transferred by the transfer arm and mounted on a mounting part. The capacitive sensor on the position detecting substrate then detects a position of a target object on the mounting part to detect a mounting position of the position detecting substrate on the mounting part. Based on the mounting position of the position detecting substrate, the moving position of the transfer arm when transferring a substrate is then adjusted.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: February 8, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Yuichi Doki, Koji Mahara, Tokutarou Hayashi
  • Publication number: 20090051370
    Abstract: In the present invention, a position detecting substrate having a capacitive sensor is supported on a transfer arm and transferred by the transfer arm and mounted on a mounting part. The capacitive sensor on the position detecting substrate then detects a position of a target object on the mounting part to detect a mounting position of the position detecting substrate on the mounting part. Based on the mounting position of the position detecting substrate, the moving position of the transfer arm when transferring a substrate is then adjusted.
    Type: Application
    Filed: August 15, 2008
    Publication date: February 26, 2009
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Yuichi Doki, Koji Mahara, Tokutarou Hayashi
  • Publication number: 20080102200
    Abstract: A compact substrate processing system capable of accurately placing a substrate at a predetermined substrate placing position, a substrate placing position adjusting method, and a storage medium storing the substrate placing position adjusting method are provided. In a substrate processing system for processing a substrate, such as a wafer W, held by a substrate holding device rotatable about a vertical axis, such as a spin chuck 2, a jig 12 is placed on the substrate holding device, and centrifugal acceleration imparted to a predetermined measuring position on the jig 12 and an eccentricity of the measuring position from the rotation center of the spin chuck 2 are determined. The position of the rotation center is determined on the basis of centrifugal accelerations imparted to the measuring position when the jig 12 is placed at three different positions and eccentricities of the measuring position from the rotation center when the jig 12 is placed at the three different positions.
    Type: Application
    Filed: October 26, 2007
    Publication date: May 1, 2008
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Yuichi DOKI, Tokutarou Hayashi