Patents by Inventor Shotaro Tsuda

Shotaro Tsuda 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).

  • Publication number: 20240033782
    Abstract: A substrate cleaning device includes a substrate holder that holds a substrate, a cleaning brush that is provided to be movable between a cleaning position for cleaning the substrate held by the substrate holder and a waiting position outward of the substrate held by the substrate holder, and has a cleaning surface capable of cleaning the substrate held by the substrate holder, a remover that is configured such that liquid is transferrable to the remover, and a driver that moves at least one of the cleaning brush and the remover with respect to another one such that at least part of liquid adhering to the cleaning surface is transferred to the remover when the cleaning surface and the remover come close to each other at a position outward of a position above the substrate held by the substrate holder, before the substrate is cleaned by the cleaning brush.
    Type: Application
    Filed: July 24, 2023
    Publication date: February 1, 2024
    Inventors: Shotaro TSUDA, Ryohei HOKAKU
  • Patent number: 11114302
    Abstract: A substrate processing apparatus includes an upper cup part including a first tubular portion and a second tubular portion that are formed each in a tubular shape capable of surrounding a substrate held by a substrate holder, the second tubular portion being connected to an upper side of the first tubular portion. The substrate processing apparatus also includes a cup moving unit that moves the upper cup part in a vertical direction with respect to the substrate holder to stop the upper cup part at each of a position where the first tubular portion surrounds the substrate, and a position where the second tubular portion surrounds the substrate.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: September 7, 2021
    Assignee: SCREEN Holdings Co., Ltd.
    Inventors: Shotaro Tsuda, Nobuyasu Hiraoka, Nobuaki Okita, Takayuki Nishida
  • Patent number: 10546763
    Abstract: In parallel with a lower-side scrub cleaning step where a brush is contacted with a lower surface inclined portion of a substrate, a center-side spray cleaning step is performed where a collision position of liquid droplets with respect to an upper surface of the substrate is moved between the center of the substrate and the middle of the substrate while the liquid droplets collide with the upper surface of the substrate. Thereafter, in parallel with an upper-side scrub cleaning step where the brush is contacted with an upper surface inclined portion of the substrate, an outer circumference-side spray cleaning step is performed where the collision position of the liquid droplets with respect to the upper surface of the substrate is moved between the middle of the substrate and the outer circumference of the substrate while the liquid droplets collide with the upper surface of the substrate.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: January 28, 2020
    Assignee: SCREEN Holdings Co., Ltd.
    Inventors: Shotaro Tsuda, Junichi Ishii
  • Publication number: 20190333771
    Abstract: A substrate processing apparatus includes an upper cup part including a first tubular portion and a second tubular portion that are formed each in a tubular shape capable of surrounding a substrate held by a substrate holder, the second tubular portion being connected to an upper side of the first tubular portion. The substrate processing apparatus also includes a cup moving unit that moves the upper cup part in a vertical direction with respect to the substrate holder to stop the upper cup part at each of a position where the first tubular portion surrounds the substrate, and a position where the second tubular portion surrounds the substrate.
    Type: Application
    Filed: November 22, 2017
    Publication date: October 31, 2019
    Inventors: Shotaro TSUDA, Nobuyasu HIRAOKA, Nobuaki OKITA, Takayuki NISHIDA
  • Publication number: 20190157117
    Abstract: In parallel with a lower-side scrub cleaning step where a brush is contacted with a lower surface inclined portion of a substrate, a center-side spray cleaning step is performed where a collision position of liquid droplets with respect to an upper surface of the substrate is moved between the center of the substrate and the middle of the substrate while the liquid droplets collide with the upper surface of the substrate. Thereafter, in parallel with an upper-side scrub cleaning step where the brush is contacted with an upper surface inclined portion of the substrate, an outer circumference-side spray cleaning step is performed where the collision position of the liquid droplets with respect to the upper surface of the substrate is moved between the middle of the substrate and the outer circumference of the substrate while the liquid droplets collide with the upper surface of the substrate.
    Type: Application
    Filed: April 22, 2016
    Publication date: May 23, 2019
    Inventors: Shotaro TSUDA, Junichi ISHII
  • Patent number: 10290511
    Abstract: A substrate treatment method is used for removing a resist from a front surface of a substrate. A substrate treatment apparatus includes a substrate holding unit which holds the substrate, and a sulfuric acid ozone/water mixture supplying unit which supplies a sulfuric acid ozone/water mixture to the front surface of the substrate held by the substrate holding unit, the sulfuric acid ozone/water mixture being a mixture which is prepared by a method including mixing water with sulfuric acid ozone prepared by dissolving ozone gas in sulfuric acid.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: May 14, 2019
    Assignee: SCREEN Holdings Co., Ltd
    Inventors: Keiji Iwata, Hiroki Tsujikawa, Shotaro Tsuda, Seiji Ano
  • Publication number: 20170162400
    Abstract: A substrate treatment method is used for removing a resist from a front surface of a substrate. A substrate treatment apparatus includes a substrate holding unit which holds the substrate, and a sulfuric acid ozone/water mixture supplying unit which supplies a sulfuric acid ozone/water mixture to the front surface of the substrate held by the substrate holding unit, the sulfuric acid ozone/water mixture being a mixture which is prepared by a method including mixing water with sulfuric acid ozone prepared by dissolving ozone gas in sulfuric acid.
    Type: Application
    Filed: February 15, 2017
    Publication date: June 8, 2017
    Inventors: Keiji IWATA, Hiroki TSUJIKAWA, Shotaro TSUDA, Seiji ANO
  • Publication number: 20140045339
    Abstract: A substrate treatment apparatus is provided which is used for removing a resist from a front surface of a substrate. The apparatus includes a substrate holding unit which holds the substrate, and a sulfuric acid ozone/water mixture supplying unit which supplies a sulfuric acid ozone/water mixture to the front surface of the substrate held by the substrate holding unit, the sulfuric acid ozone/water mixture being a mixture which is prepared by mixing water with sulfuric acid ozone prepared by dissolving ozone gas in sulfuric acid.
    Type: Application
    Filed: July 30, 2013
    Publication date: February 13, 2014
    Inventors: Keiji IWATA, Hiroki TSUJIKAWA, Shotaro TSUDA, Seiji ANO
  • Patent number: 6372365
    Abstract: A resin-coated Al—Zn alloy coated steel sheet is excellent in formability, resistance to chromium dissolution, corrosion resistance, alkali resistance, and paintability, and produced by the following method. That is, a silane coupling agent having amino group, chromium ion and at least one alcohol selected from the group consisting of trihydric alcohol and dihydric alcohol having the number of carbon of 2 to 3 are compounded into an acrylic polymer resin emulsion including carboxyl group and glycidyl group, and having an acid value of 10 to 60. A pH of the resultant mixture is adjusted within a range of 7 to 9 to obtain a chromate containing resin composition. The chromate containing resin composition is applied on an Al—Zn alloy coated steel sheet as a substrate, and then dried to obtain a resin film on the substrate. A compounding amount of the silane coupling agent is within a range of 0.5 to 3.0 wt % with respect to a resin solid component of the acrylic polymer resin emulsion.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: April 16, 2002
    Assignee: Daido Steel Sheet Corp.
    Inventors: Masatoshi Ibuki, Osamu Goto, Noriaki Yoshitake, Yoshiyuki Murasawa, Shotaro Tsuda
  • Patent number: 5624480
    Abstract: An acidic substitutional plating bath for zinciferous surfaces, particularly zinciferous metal-plated steel sheet, with which sludge production and equipment corrosion are inhibited and which has an improved heavy metal ion deposition efficiency is provided by an aqueous composition that has a pH of 2 to 4.5 and that contains 1.5 to 40 g/L of at least one heavy metal ion selected from nickel, iron, and cobalt; 0.5 to 10 g/L of phosphate ions; 1 to 250 g/L of sulfate ion; and 1 to 20 g/L of organic acid.
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: April 29, 1997
    Assignee: Henkel Corporation
    Inventors: Noriaki Yoshitake, Yoshiyuki Murasawa, Shotaro Tsuda