Patents by Inventor Rikyu Ikariyama

Rikyu Ikariyama 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: 20240008273
    Abstract: According to one embodiment, a semiconductor device manufacturing method includes forming a stacked film with alternating first-type sacrificial layers and second-type sacrificial layers, then removing the first-type sacrificial layers from the stacked film to leave the second-type sacrificial layers with spaces therebetween. The second-type sacrificial layers are then each replaced with an insulating layer after removing the first-type sacrificial layers. After the second-type sacrificial layers are replaced with the insulating layer, a conductive layer is formed inside the spaces formed by removing the first-type sacrificial layers.
    Type: Application
    Filed: January 9, 2023
    Publication date: January 4, 2024
    Inventors: Rikyu IKARIYAMA, Shinya OKUDA, Takuya KONNO
  • Publication number: 20230014146
    Abstract: A film deposition device according to the present embodiment includes a chamber. A mounting part is provided in the chamber to allow a substrate to be placed thereon and contains aluminum nitride. A heater is provided in the mounting part. A supply part is configured to supply a process gas for film deposition to the substrate on the mounting part in the chamber. A cover film covers a mounting surface of the mounting part on which the substrate is placed, a back surface opposite to the mounting surface, and a side surface between the mounting surface and the back surface and contains yttrium oxide.
    Type: Application
    Filed: December 7, 2021
    Publication date: January 19, 2023
    Applicant: Kioxia Corporation
    Inventor: Rikyu IKARIYAMA
  • Patent number: 11098405
    Abstract: A shower head includes a face plate having an outer peripheral portion and a plurality of gas injection holes disposed inside the outer peripheral portion, a movable portion facing the face plate and having a gas introduction passage, and a seal interposed between the outer peripheral portion of the face plate and the movable portion. The movable portion is arranged to move, in the first direction, between a first position in which the movable portion is coupled to the face plate by interposing the seal between the movable portion and the face plate, and the gas introduction passage communicates with the inside of the chamber via the gas injection holes, and a second position in which the movable portion is separated from the face plate, and the gas introduction passage communicates with the inside of the chamber via a gap between the movable portion and the face plate.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: August 24, 2021
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Hideaki Masuda, Nobuhide Yamada, Rikyu Ikariyama
  • Publication number: 20190085453
    Abstract: A shower head includes a face plate having an outer peripheral portion and a plurality of gas injection holes disposed inside the outer peripheral portion, a movable portion facing the face plate and having a gas introduction passage, and a seal interposed between the outer peripheral portion of the face plate and the movable portion. The movable portion is arranged to move, in the first direction, between a first position in which the movable portion is coupled to the face plate by interposing the seal between the movable portion and the face plate, and the gas introduction passage communicates with the inside of the chamber via the gas injection holes, and a second position in which the movable portion is separated from the face plate, and the gas introduction passage communicates with the inside of the chamber via a gap between the movable portion and the face plate.
    Type: Application
    Filed: February 22, 2018
    Publication date: March 21, 2019
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Hideaki MASUDA, Nobuhide YAMADA, Rikyu IKARIYAMA
  • Publication number: 20160020232
    Abstract: According to one embodiment, a solid state imaging device includes a semiconductor layer and an anti-reflection film. The semiconductor layer performs photoelectric conversion. The anti-reflection film is provided on the semiconductor layer. The anti-reflection film is conductive.
    Type: Application
    Filed: July 13, 2015
    Publication date: January 21, 2016
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroyuki FUKUMIZU, Rikyu IKARIYAMA
  • Patent number: 9236229
    Abstract: According to one embodiment, a gas supply member is provided with a gas supply passage including a gas flow channel with a first diameter, and an exhaust port connected to one end portion of the gas flow channel and provided to a surface of a downstream side of the gas supply member. An yttria-containing film is formed on a surface constituting the exhaust port and the surface of the downstream side of the gas supply member. At least a part of the surface constituting the exhaust port is formed with a curved surface.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: January 12, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideo Eto, Rikyu Ikariyama, Makoto Saito, Sachiyo Ito
  • Publication number: 20150357359
    Abstract: According to one embodiment, a solid state imaging device includes a semiconductor layer, an intermediate film, an anti-reflection film and a conductive film. The semiconductor layer performs photoelectric conversion. The intermediate film is provided on the semiconductor layer. The intermediate film has a negative charge. The anti-reflection film is provided on the intermediate film. The conductive film is provided on the anti-reflection film.
    Type: Application
    Filed: June 4, 2015
    Publication date: December 10, 2015
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Rikyu IKARIYAMA, Hiroyuki FUKUMIZU
  • Publication number: 20150279877
    Abstract: According to one embodiment, a solid state imaging device includes a semiconductor layer, a first layer, a second layer and third layer. The semiconductor layer performs photoelectric conversion. The first layer has a first refractive index. The second layer is provided between the first layer and the semiconductor layer, the second layer includes a metal oxide and has a second refractive index not greater than the first refractive index. The third layer is provided between the first layer and the second layer. The third layer has a third refractive index and includes an element bonding covalently with oxygen. The third refractive index is not greater than the first refractive index.
    Type: Application
    Filed: February 19, 2015
    Publication date: October 1, 2015
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Rikyu IKARIYAMA, Hiroyuki FUKUMIZU, Noriteru YAMADA, Naohiro TSUDA, Kazunori KAKEHI
  • Publication number: 20120037596
    Abstract: According to one embodiment, a gas supply member is provided with a gas supply passage including a gas flow channel with a first diameter, and an exhaust port connected to one end portion of the gas flow channel and provided to a surface of a downstream side of the gas supply member. An yttria-containing film is formed on a surface constituting the exhaust port and the surface of the downstream side of the gas supply member. At least a part of the surface constituting the exhaust port is formed with a curved surface.
    Type: Application
    Filed: July 29, 2011
    Publication date: February 16, 2012
    Inventors: Hideo ETO, Rikyu Ikariyama, Makoto Saito, Sachiyo Ito
  • Patent number: 7804231
    Abstract: Provided are a piezoelectric film, a piezoelectric film element, a liquid discharge head using the piezoelectric film element, and a liquid discharge apparatus. A piezoelectric film element that can be suitably used for a discharge pressure-generating element of a liquid discharge head is obtained by using an epitaxial oxide film composed of a perovskite composite oxide constituted according to a general formula ABO3 as a piezoelectric film. The epitaxial oxide film has at least an A domain and a B domain having a crystal orientation deviation with respect to each other. The crystal orientation deviation between the A domain and the B domain is less than 2°.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: September 28, 2010
    Assignees: Canon Kabushiki Kaisha, Tokyo Institute of Technology
    Inventors: Toshihiro Ifuku, Katsumi Aoki, Takanori Matsuda, Hiroshi Funakubo, Shintaro Yokoyama, Yong Kwan Kim, Hiroshi Nakaki, Rikyu Ikariyama
  • Patent number: 7622852
    Abstract: The invention provides a piezoelectric film having a large piezoelectric property, and a piezoelectric element, a liquid discharge head and a liquid discharge apparatus utilizing the same. The piezoelectric film is formed by an epitaxial oxide of <100> orientation having at least a tetragonal crystal structure, in which the oxide is a perovskite type composite oxide represented by a general formula ABO3 and contains at least domains C, D and E of [100] orientation having mutual deviation in crystal direction, where the angular deviation between [100] directions in domains C and D, in domains D and E, in domains C and E and in domains D and E are respectively 5° or less, 5° or less, 0.3° or less, and 0.3° or more, and the angular deviation between [001] directions in domains C and E and in domains D and E are respectively 1.0° or more, and 1.0° or more.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: November 24, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshihiro Ifuku, Tetsuro Fukui, Kenichi Takeda, Hiroshi Funakubo, Hiroshi Nakaki, Rikyu Ikariyama, Osami Sakata
  • Publication number: 20080211881
    Abstract: The invention provides a piezoelectric film having a large piezoelectric property, and a piezoelectric element, a liquid discharge head and a liquid discharge apparatus utilizing the same. The piezoelectric film is formed by an epitaxial oxide of <100> orientation having at least a tetragonal crystal structure, in which the oxide is a perovskite type composite oxide represented by a general formula ABO3 and contains at least domains C, D and E of [100] orientation having mutual deviation in crystal direction, where the angular deviation between [100] directions in domains C and D, in domains D and E, in domains C and E and in domains D and E are respectively 5° or less, 5° or less, 0.3° or less, and 0.3° or more, and the angular deviation between [001] directions in domains C and E and in domains D and E are respectively 1.0° or more, and 1.0° or more.
    Type: Application
    Filed: February 14, 2008
    Publication date: September 4, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshihiro Ifuku, Tetsuro Fukui, Kenichi Takeda, Hiroshi Funakubo, Hiroshi Nakaki, Rikyu Ikariyama, Osami Sakata
  • Publication number: 20080012054
    Abstract: Provided are a piezoelectric film, a piezoelectric film element, a liquid discharge head using the piezoelectric film element, and a liquid discharge apparatus. A piezoelectric film element that can be suitably used for a discharge pressure-generating element of a liquid discharge head is obtained by using an epitaxial oxide film composed of a perovskite composite oxide constituted according to a general formula ABO3 as a piezoelectric film. The epitaxial oxide film has at least an A domain and a B domain having a crystal orientation deviation with respect to each other. The crystal orientation deviation between the A domain and the B domain is less than 2°.
    Type: Application
    Filed: February 21, 2007
    Publication date: January 17, 2008
    Applicants: CANON KABUSHIKI KAISHA, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Toshihiro IFUKU, Katsumi Aoki, Takanori Matsuda, Hiroshi Funakubo, Shintaro Yokoyama, Yong Kim, Hiroshi Nakaki, Rikyu Ikariyama