Patents by Inventor Shinya Ikesaka

Shinya Ikesaka 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: 10237961
    Abstract: A target supply device according to a first aspect of the present disclosure is configured to supply a metal target in a plasma generation region and may include a tank configured to house the metal target, a filter having been subjected to a dehydration process, the filter being configured to suppress passage of particles in the metal target housed in the tank, and a nozzle provided with a nozzle hole configured to eject the metal target that has passed through the filter.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: March 19, 2019
    Assignee: Gigaphoton Inc.
    Inventors: Tsukasa Hori, Yutaka Shiraishi, Shinya Ikesaka, Takanobu Ishihara, Toshiro Umeki
  • Publication number: 20190045614
    Abstract: A target supply device according to a first aspect of the present disclosure is configured to supply a metal target in a plasma generation region and may include a tank configured to house the metal target, a filter having been subjected to a dehydration process, the filter being configured to suppress passage of particles in the metal target housed in the tank, and a nozzle provided with a nozzle hole configured to eject the metal target that has passed through the filter.
    Type: Application
    Filed: October 9, 2018
    Publication date: February 7, 2019
    Applicant: Gigaphoton Inc.
    Inventors: Tsukasa HORI, Yutaka SHIRAISHI, Shinya IKESAKA, Takanobu ISHIHARA, Toshiro UMEKI
  • Patent number: 10136509
    Abstract: A target supply device according to a first aspect of the present disclosure is configured to supply a metal target in a plasma generation region and may include a tank configured to house the metal target, a filter having been subjected to a dehydration process, the filter being configured to suppress passage of particles in the metal target housed in the tank, and a nozzle provided with a nozzle hole configured to eject the metal target that has passed through the filter.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: November 20, 2018
    Assignee: Gigaphoton Inc.
    Inventors: Tsukasa Hori, Yutaka Shiraishi, Shinya Ikesaka, Takanobu Ishihara, Toshiro Umeki
  • Publication number: 20170280543
    Abstract: A target supply device according to a first aspect of the present disclosure is configured to supply a metal target in a plasma generation region and may include a tank configured to house the metal target, a filter having been subjected to a dehydration process, the filter being configured to suppress passage of particles in the metal target housed in the tank, and a nozzle provided with a nozzle hole configured to eject the metal target that has passed through the filter.
    Type: Application
    Filed: June 7, 2017
    Publication date: September 28, 2017
    Applicant: Gigaphoton Inc.
    Inventors: Tsukasa HORI, Yutaka SHIRAISHI, Shinya IKESAKA, Takanobu ISHIHARA, Toshiro UMEKI
  • Patent number: 9648715
    Abstract: A target supply device may include: a target generator configured to accommodate a liquid target material and having a nozzle with a nozzle hole from which the liquid target material is outputted; and a filter disposed in the target generator and made of glass, the glass reacting with the liquid target material, so that a solid reaction product is generated. The filter may include a first through-hole configured to allow the liquid target material to pass therethrough, and an inner surface of the first through-hole may be coated with a material which is not easy to react with the liquid target material.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: May 9, 2017
    Assignee: GIGAPHOTON INC.
    Inventors: Yutaka Shiraishi, Toshiyuki Hirashita, Shinya Ikesaka
  • Publication number: 20160249443
    Abstract: A target supply device may include: a target generator configured to accommodate a liquid target material and having a nozzle with a nozzle hole from which the liquid target material is outputted; and a filter disposed in the target generator and made of glass, the glass reacting with the liquid target material, so that a solid reaction product is generated. The filter may include a first through-hole configured to allow the liquid target material to pass therethrough, and an inner surface of the first through-hole may be coated with a material which is not easy to react with the liquid target material.
    Type: Application
    Filed: April 29, 2016
    Publication date: August 25, 2016
    Applicant: Gigaphoton Inc.
    Inventors: Yutaka SHIRAISHI, Toshiyuki HIRASHITA, Shinya IKESAKA
  • Publication number: 20110318894
    Abstract: According to one embodiment, a method is disclosed for manufacturing a semiconductor device. The method can include forming a first semiconductor region of a second conductivity type on a semiconductor layer of a first conductivity type, forming a mask selectively opening a surface of the first semiconductor region, and forming a trench penetrating through the first semiconductor region to reach the semiconductor layer. The method can include exposing further a part of the surface of the first semiconductor region from the mask. The method can include forming a control electrode in the trench, and forming selectively a second semiconductor region of the first conductivity type on the surface of the first semiconductor region. The method can include removing the mask having the opening. The method can include forming selectively a third conductor region of the second conductivity type on the surface of the first semiconductor region.
    Type: Application
    Filed: March 22, 2011
    Publication date: December 29, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hitoshi Kobayashi, Shinya Ikesaka