Patents by Inventor Norihito TSUKAMOTO

Norihito TSUKAMOTO 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: 9822450
    Abstract: The present invention provides a vacuum processing apparatus capable of reducing attachment of particles generated in a processing space to an inner wall of a chamber, and of easily adjusting pressure in the processing space while introducing a gas into the processing space at a desired flow rate. A vacuum processing apparatus according to one embodiment includes: a container; a gas exhaust portion; a substrate holder configured to retain a substrate; a shield provided to surround the substrate holder and dividing an inside of the container into a processing space and an outside space; a gas introducing portion; a plasma generating portion; and an exhaust portion provided to the shield having a communication path through which the processing space and the outside space communicate, wherein at least part of the communication path is hidden from a region where the plasma generating portion generates the plasma.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: November 21, 2017
    Assignee: Canon Anelva Corporation
    Inventors: Toshikazu Nakazawa, Norihito Tsukamoto, Keisuke Ueda, Eiji Ozaki
  • Patent number: 9127355
    Abstract: Provided is a substrate processing apparatus including an openable and closable lid and being capable of precisely controlling a gap between multiple shields. The substrate processing apparatus includes: an openable and closable lid provided on an opening of a chamber; a first shield provided on a surface of the lid at the chamber side and having an insertion hole; an insertion section fixed to the lid while inserted through the insertion hole, and configured to support the first shield in a manner movable within a predetermined distance; a restriction section provided on an end portion of the insertion section and configured to restrict the movement of the first shield; and biasing means configured to bias the first shield to a member provided inside the chamber when the lid is closed.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: September 8, 2015
    Assignee: CANON ANELVA CORPORATION
    Inventors: Toshikazu Nakazawa, Norihito Tsukamoto, Keisuke Ueda, Eiji Ozaki
  • Patent number: 9085820
    Abstract: Provided is a substrate processing apparatus including an openable and closable lid and being capable of precisely controlling a gap between multiple shields. The substrate processing apparatus includes: an openable and closable lid provided on an opening of a chamber; a first shield provided on a surface of the lid at the chamber side and having an insertion hole; an insertion section fixed to the lid while inserted through the insertion hole, and configured to support the first shield in a manner movable within a predetermined distance; a restriction section provided on an end portion of the insertion section and configured to restrict the movement of the first shield; and biasing means configured to bias the first shield to a member provided inside the chamber when the lid is closed.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: July 21, 2015
    Assignee: CANON ANELVA CORPORATION
    Inventors: Toshikazu Nakazawa, Norihito Tsukamoto, Keisuke Ueda, Eiji Ozaki
  • Publication number: 20140261182
    Abstract: The present invention provides a vacuum processing apparatus capable of reducing attachment of particles generated in a processing space to an inner wall of a chamber, and of easily adjusting pressure in the processing space while introducing a gas into the processing space at a desired flow rate. A vacuum processing apparatus according to one embodiment includes: a container; a gas exhaust portion; a substrate holder configured to retain a substrate; a shield provided to surround the substrate holder and dividing an inside of the container into a processing space and an outside space; a gas introducing portion; a plasma generating portion; and an exhaust portion provided to the shield having a communication path through which the processing space and the outside space communicate, wherein at least part of the communication path is hidden from a region where the plasma generating portion generates the plasma.
    Type: Application
    Filed: June 4, 2014
    Publication date: September 18, 2014
    Applicant: CANON ANELVA CORPORATION
    Inventors: Toshikazu NAKAZAWA, Norihito TSUKAMOTO, Keisuke UEDA, Eiji OZAKI