Patents by Inventor Ryuto OZASA

Ryuto OZASA 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: 20210308828
    Abstract: A dressing apparatus includes a bus member which is equipped with a ceiling plate and a circular or polygonal cylindrical skirt portion provided at a bottom surface of the ceiling plate and which is configured to accommodate a polishing pad from thereabove. The bus member includes a dual fluid nozzle configured to jet a cleaning liquid and a gas onto a polishing surface of the polishing pad; a dress board configured to come into contact with the polishing surface of the polishing pad; and a rinse nozzle configured to supply a rinse liquid onto a contact surface between the polishing surface of the polishing pad and the dress board. A cleaning liquid, a fragment of a grindstone or a sludge is suppressed from being scattered around by the skirt portion.
    Type: Application
    Filed: June 15, 2021
    Publication date: October 7, 2021
    Inventors: Yoshiki Okamoto, Yasushi Takiguchi, Akihiro Kubo, Hayato Hosaka, Ryuto Ozasa
  • Patent number: 11059145
    Abstract: A dressing apparatus 200 includes a bus member 203 which is equipped with a ceiling plate 201 and a circular or polygonal cylindrical skirt portion 202 provided at a bottom surface of the ceiling plate 201 and which is configured to accommodate a polishing pad 131 from thereabove. The bus member 203 includes a dual fluid nozzle 204 configured to jet a cleaning liquid and a gas onto a polishing surface of the polishing pad 131; a dress board 205 configured to come into contact with the polishing surface of the polishing pad 131; and a rinse nozzle 206 configured to supply a rinse liquid onto a contact surface between the polishing surface of the polishing pad 131 and the dress board 205. A cleaning liquid, a fragment of a grindstone or a sludge is suppressed from being scattered around by the skirt portion 202.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: July 13, 2021
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Yoshiki Okamoto, Yasushi Takiguchi, Akihiro Kubo, Hayato Hosaka, Ryuto Ozasa
  • Patent number: 10840079
    Abstract: A substrate processing apparatus includes: a first holding part configured to hold a substrate; a second holding part configured to hold the substrate; a sliding member configured to rotate about a vertical axis so that the sliding member slides on a back surface of the substrate; a revolution mechanism configured to revolve the sliding member under rotation about a vertical revolution axis; and a relative movement mechanism configured to horizontally move a relative position between the substrate and a revolution trajectory of the sliding member so that when the substrate is held by the first holding part, the sliding member slides on a central portion of the back surface of the substrate, and when the substrate is held by the second holding part, the sliding member slides on the peripheral portion of the back surface of the substrate under rotation.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: November 17, 2020
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Yasushi Takiguchi, Taro Yamamoto, Yoshiki Okamoto, Hayato Hosaka, Teruhiko Kodama, Akihiro Kubo, Ryuto Ozasa, Yuji Ariuchi, Shinsuke Kimura
  • Publication number: 20190047118
    Abstract: A dressing apparatus 200 includes a bus member 203 which is equipped with a ceiling plate 201 and a circular or polygonal cylindrical skirt portion 202 provided at a bottom surface of the ceiling plate 201 and which is configured to accommodate a polishing pad 131 from thereabove. The bus member 203 includes a dual fluid nozzle 204 configured to jet a cleaning liquid and a gas onto a polishing surface of the polishing pad 131; a dress board 205 configured to come into contact with the polishing surface of the polishing pad 131; and a rinse nozzle 206 configured to supply a rinse liquid onto a contact surface between the polishing surface of the polishing pad 131 and the dress board 205. A cleaning liquid, a fragment of a grindstone or a sludge is suppressed from being scattered around by the skirt portion 202.
    Type: Application
    Filed: August 9, 2018
    Publication date: February 14, 2019
    Inventors: Yoshiki Okamoto, Yasushi Takiguchi, Akihiro Kubo, Hayato Hosaka, Ryuto Ozasa
  • Publication number: 20180151343
    Abstract: A substrate processing apparatus includes: a first holding part configured to hold a substrate; a second holding part configured to hold the substrate; a sliding member configured to rotate about a vertical axis so that the sliding member slides on a back surface of the substrate; a revolution mechanism configured to revolve the sliding member under rotation about a vertical revolution axis; and a relative movement mechanism configured to horizontally move a relative position between the substrate and a revolution trajectory of the sliding member so that when the substrate is held by the first holding part, the sliding member slides on a central portion of the back surface of the substrate, and when the substrate is held by the second holding part, the sliding member slides on the peripheral portion of the back surface of the substrate under rotation.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 31, 2018
    Inventors: Yasushi TAKIGUCHI, Taro YAMAMOTO, Yoshiki OKAMOTO, Hayato HOSAKA, Teruhiko KODAMA, Akihiro KUBO, Ryuto OZASA, Yuji ARIUCHI, Shinsuke KIMURA