Patents by Inventor Ryuji Yamamoto

Ryuji Yamamoto 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: 9640387
    Abstract: A technique includes loading a substrate into a process chamber, supporting the substrate by a mounting table having a heater therein in the process chamber, forming a film on the substrate by supplying a processing gas into the process chamber in a state where the mounting table having the substrate supported thereon is disposed in a first position and the heater is turned on, unloading the substrate on which the film is formed, and supplying a reactive gas into the process chamber in a state where the mounting table is disposed in a second position and the heater is turned on. The second position is closer to a ceiling portion in the process chamber than the first position.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: May 2, 2017
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Ryuji Yamamoto, Tsukasa Kamakura, Yoshiro Hirose, Satoshi Shimamoto
  • Publication number: 20170117133
    Abstract: A method of manufacturing a semiconductor device includes forming a film on a substrate by performing a cycle a predetermined number of times. The cycle includes non-simultaneously performing: forming a first layer by supplying a precursor gas including a chemical bond of a first element and carbon and a first catalyst gas to the substrate; exhausting the precursor gas and the first catalyst gas through an exhaust system; forming a second layer by supplying a reaction gas including a second element and a second catalyst gas to the substrate to modify the first layer; and exhausting the reaction gas and the second catalyst gas through the exhaust system. At least in a specific cycle, the respective gases are supplied and confined in the process chamber while closing the exhaust system in at least one of the act of forming the first layer and the act of forming the second layer.
    Type: Application
    Filed: November 9, 2016
    Publication date: April 27, 2017
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Ryuji YAMAMOTO, Yoshiro HIROSE, Satoshi SHIMAMOTO
  • Patent number: 9613798
    Abstract: A technique includes forming a film containing a first element, a second element and carbon on a substrate by performing a cycle a predetermined number of times. The cycle includes non-simultaneously performing: forming a first layer containing the first element and carbon by supplying a precursor gas having a chemical bond of the first element and carbon from a first supply part to the substrate in a process chamber, and forming a second layer by supplying a reaction gas containing the second element from a second supply part to the substrate in the process chamber and supplying a plasma-excited inert gas from a third supply part to the substrate in the process chamber to modify the first layer, the third supply part being different from the second supply part.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: April 4, 2017
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Ryuji Yamamoto, Yoshiro Hirose, Satoshi Shimamoto
  • Patent number: 9587308
    Abstract: A cleaning method includes performing a first cleaning process of supplying a fluorine-based gas from a first nozzle heated to a first temperature and a nitrogen oxide-based gas from a second nozzle heated to a first temperature into a process chamber heated to the first temperature in order to remove on surfaces of members in the process chamber by a thermochemical reaction, changing in internal temperature of the process chamber to a second temperature higher than the first temperature, and performing a second cleaning process of supplying a fluorine-based gas from the first nozzle heated to the second temperature into the process chamber heated to the second temperature in order to remove substances remaining on the surfaces of the members in the process chamber after removing the deposits by the thermochemical reaction and to remove deposits deposited in the first nozzle by the thermochemical reaction.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: March 7, 2017
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Kenji Kameda, Ryuji Yamamoto, Yuji Urano
  • Patent number: 9558937
    Abstract: A method of manufacturing a semiconductor device includes: (a) forming a first film containing a metal element on a substrate by performing a cycle a predetermined number of times, the cycle including: (a-1) supplying a first precursor gas being a fluorine-free inorganic gas containing the metal element to the substrate; and (a-2) supplying a first reactant gas having reducibility to the substrate; (b) forming a second film containing the metal element on the first film by performing a cycle a predetermined number of times, the cycle including: (b-1) supplying a second precursor gas containing the metal element and fluorine to the substrate; and (b-2) supplying a second reactant gas having reducibility to the substrate; and (c) forming a film containing the metal element and obtained by the first film and the second film being laminated on the substrate by performing the (a) and (b).
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: January 31, 2017
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Kimihiko Nakatani, Kazuhiro Harada, Hiroshi Ashihara, Ryuji Yamamoto
  • Patent number: 9524867
    Abstract: A method of manufacturing a semiconductor device includes forming a film on a substrate by performing a cycle a predetermined number of times. The cycle includes non-simultaneously performing: forming a first layer by supplying a precursor gas including a chemical bond of a first element and carbon and a first catalyst gas to the substrate; exhausting the precursor gas and the first catalyst gas through an exhaust system; forming a second layer by supplying a reaction gas including a second element and a second catalyst gas to the substrate to modify the first layer; and exhausting the reaction gas and the second catalyst gas through the exhaust system. At least in a specific cycle, the respective gases are supplied and confined in the process chamber while closing the exhaust system in at least one of the act of forming the first layer and the act of forming the second layer.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: December 20, 2016
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Ryuji Yamamoto, Yoshiro Hirose, Satoshi Shimamoto
  • Publication number: 20160365246
    Abstract: A method of manufacturing a semiconductor device includes forming a seed layer containing a predetermined element on a substrate by performing a process a predetermined number of times, and supplying a second precursor containing the predetermined element and not containing the ligand to the substrate to form a film containing the predetermined element on the seed layer. The process includes alternately performing: supplying a first precursor to the substrate to form an adsorption layer of the first precursor, the first precursor containing the predetermined element and a ligand which is coordinated to the predetermined element and which contains at least one of carbon or nitrogen, and supplying a ligand desorption material to the substrate to desorb the ligand from the adsorption layer of the first precursor.
    Type: Application
    Filed: June 7, 2016
    Publication date: December 15, 2016
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Ryuji YAMAMOTO, Yoshiro HIROSE
  • Publication number: 20160344034
    Abstract: A lithium secondary battery, including: a hydrofluoric acid-containing electrolytic solution; an electrode; and a conductive assistant, in which the conductive assistant (1) contains a substance that is poorly soluble in the hydrofluoric acid-containing electrolytic solution, the substance including one or more kinds selected from transition metal compounds, and (2) contains a substance that is soluble in the hydrofluoric acid-containing electrolytic solution, the substance having a total metal mass of 0 mass % or more and 0.003 mass % or less with respect to a total mass of the electrode; and a conductive assistant, including: a substance that is poorly soluble in a hydrofluoric acid-containing electrolytic solution; and a substance that consumes hydrofluoric acid, the conductive assistant being substantially free, or including 1 mass % or less with respect to a total mass thereof, of a substance that is soluble in the hydrofluoric acid-containing electrolytic solution.
    Type: Application
    Filed: January 14, 2015
    Publication date: November 24, 2016
    Applicant: SHOWA DENKO K. K.
    Inventors: Ryuji YAMAMOTO, Tsuyoshi INOSE
  • Publication number: 20160225607
    Abstract: A method of manufacturing a semiconductor device includes forming a film on a substrate by performing a cycle a predetermined number of times. The cycle includes non-simultaneously performing: forming a first layer by supplying a precursor gas including a chemical bond of a first element and carbon and a first catalyst gas to the substrate; exhausting the precursor gas and the first catalyst gas through an exhaust system; forming a second layer by supplying a reaction gas including a second element and a second catalyst gas to the substrate to modify the first layer; and exhausting the reaction gas and the second catalyst gas through the exhaust system. At least in a specific cycle, the respective gases are supplied and confined in the process chamber while closing the exhaust system in at least one of the act of forming the first layer and the act of forming the second layer.
    Type: Application
    Filed: January 29, 2016
    Publication date: August 4, 2016
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Ryuji YAMAMOTO, Yoshiro HIROSE, Satoshi SHIMAMOTO
  • Patent number: 9397340
    Abstract: Provided is composite carbon fibers comprising multi-walled carbon nanotubes wherein 99% by number or more of the multi-walled carbon nanotubes have a fiber diameter of not less than 5 nm and not more than 40 nm, carbon particles having a primary particle diameter of not less than 20 nm and not more than 100 nm and graphitized carbon nanofibers wherein 99% by number or more of the graphitized carbon nanofibers have a fiber diameter of not less than 50 nm and not more than 300 nm, wherein the multi-walled carbon nanotubes are homogeneously dispersed between the graphitized carbon nanofibers and the carbon particles.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: July 19, 2016
    Assignee: SHOWA DENKO K.K.
    Inventors: Ryuji Yamamoto, Takeshi Nakamura, Nobuaki Ishii, Yuta Hirano
  • Patent number: 9390911
    Abstract: A method includes: forming a thin film on a substrate by performing a cycle a predetermined number of times, the cycle including: (a) supplying a source gas to the substrate in a process chamber; and (b) supplying a reactive gas to the substrate in the process chamber, wherein at least one of (a) and (b) includes: (c) supplying the source gas or the reactive gas at a first flow rate with exhaust of an inside of the process chamber being suspended until an inner pressure of the process chamber reaches a predetermined pressure; and (d) supplying the source gas or the reactive gas at a second flow rate less than the first flow rate with exhaust of the inside of the process chamber being performed while maintaining the inner pressure of the process chamber at the predetermined pressure after the inner pressure of the process chamber reaches the predetermined pressure.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: July 12, 2016
    Assignee: Hitachi Kokusai Electric, Inc.
    Inventors: Yoshiro Hirose, Ryota Sasajima, Yoshinobu Nakamura, Ryuji Yamamoto
  • Patent number: 9384961
    Abstract: A method for manufacturing a semiconductor device includes forming a thin film containing a specific element and having a prescribed composition on a substrate by alternately performing the following steps prescribed number of times: forming a first layer containing the specific element, nitrogen, and carbon on the substrate by alternately performing prescribed number of times: supplying a first source gas containing the specific element and a halogen-group to the substrate, and supplying a second source gas containing the specific element and an amino-group to the substrate, and forming a second layer by modifying the first layer by supplying a reactive gas different from each of the source gases, to the substrate.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: July 5, 2016
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshiro Hirose, Ryuji Yamamoto
  • Publication number: 20160153090
    Abstract: A technique includes forming a film containing a first element, a second element, and carbon on a substrate by performing a cycle a predetermined number of times. The cycle includes non-simultaneously performing: forming a first solid layer containing the first element and carbon, and having a thickness of more than one atomic layer and equal to or less than several atomic layers, by supplying a precursor gas having a chemical bond of the first element and carbon to the substrate and confining the precursor gas within the process chamber, under a condition in which the precursor gas is autolyzed and at least a part of the chemical bond of the first element and carbon is maintained without being broken; and forming a second solid layer by supplying a reaction gas containing the second element to the substrate to modify the first solid layer.
    Type: Application
    Filed: January 29, 2016
    Publication date: June 2, 2016
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Ryuji YAMAMOTO, Satoshi SHIMAMOTO, Yoshiro HIROSE
  • Patent number: 9356293
    Abstract: An object of the present invention is to provide composite carbon fibers in which multiwalled carbon nanotubes are homogeneously dispersed between graphitized carbon nanofibers and near the surface of the graphitized carbon nanofibers, the composite carbon fibers being capable of easily being dispersed in a matrix such as resin without leaving aggregates, and also imparting low resistance. Disclosed are composite carbon fibers comprising multiwalled carbon nanotubes having a fiber diameter of 5 nm or more and 30 nm or less and graphitized carbon nanofibers having a fiber diameter of 50 nm or more and 300 nm or less, wherein the multiwalled carbon nanotubes are homogeneously dispersed between the graphitized carbon nanofibers and near the surface of the graphitized carbon nanofibers.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: May 31, 2016
    Assignee: SHOWA DENKO K.K.
    Inventors: Ryuji Yamamoto, Takeshi Nakamura
  • Patent number: 9337491
    Abstract: An electrode for a lithium battery, which electrode includes an electrode active material which can charge and discharge lithium ions (A), a carbonaceous conductive additive (B) and a binder (C). The carbonaceous conductive additive contains carbon fiber, the carbon fiber including a mixture of two kinds of carbon fibers having different diameter distributions on a number basis; and the fiber diameter distribution of the carbon fiber in the electrode has one or more maximum values at 5-40 nm and at 50-300 nm, respectively. Also disclosed is a lithium battery using the electrode. The electrode enables production of a lithium battery having a reduced discharge capacity decline.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: May 10, 2016
    Assignee: SHOWA DENKO K.K.
    Inventors: Ryuji Yamamoto, Yuusuke Yamada, Takeshi Nakamura
  • Publication number: 20160064219
    Abstract: A technique includes loading a substrate into a process chamber, supporting the substrate by a mounting table having a heater therein in the process chamber, forming a film on the substrate by supplying a processing gas into the process chamber in a state where the mounting table having the substrate supported thereon is disposed in a first position and the heater is turned on, unloading the substrate on which the film is formed, and supplying a reactive gas into the process chamber in a state where the mounting table is disposed in a second position and the heater is turned on. The second position is closer to a ceiling portion in the process chamber than the first position.
    Type: Application
    Filed: August 28, 2015
    Publication date: March 3, 2016
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Ryuji YAMAMOTO, Tsukasa KAMAKURA, Yoshiro HIROSE, Satoshi SHIMAMOTO
  • Publication number: 20160042940
    Abstract: A method of manufacturing a semiconductor device includes: (a) forming a first film containing a metal element on a substrate by performing a cycle a predetermined number of times, the cycle including: (a-1) supplying a first precursor gas being a fluorine-free inorganic gas containing the metal element to the substrate; and (a-2) supplying a first reactant gas having reducibility to the substrate; (b) forming a second film containing the metal element on the first film by performing a cycle a predetermined number of times, the cycle including: (b-1) supplying a second precursor gas containing the metal element and fluorine to the substrate; and (b-2) supplying a second reactant gas having reducibility to the substrate; and (c) forming a film containing the metal element and obtained by the first film and the second film being laminated on the substrate by performing the (a) and (b).
    Type: Application
    Filed: October 19, 2015
    Publication date: February 11, 2016
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Kimihiko NAKATANI, Kazuhiro HARADA, Hiroshi ASHIHARA, Ryuji YAMAMOTO
  • Publication number: 20160024659
    Abstract: A technique includes forming a film containing a first element, a second element and carbon on a substrate by performing a cycle a predetermined number of times. The cycle includes non-simultaneously performing supplying a first precursor having chemical bonds between the first elements to a substrate, supplying a second precursor having chemical bonds between the first element and carbon without having the chemical bonds between the first elements to the substrate, and supplying a first reactant containing the second element to the substrate.
    Type: Application
    Filed: July 21, 2015
    Publication date: January 28, 2016
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Satoshi SHIMAMOTO, Yoshiro HIROSE, Ryuji YAMAMOTO
  • Patent number: 9234277
    Abstract: A method of manufacturing a semiconductor device is disclosed. The method includes forming a thin film having a borazine ring skeleton and containing a predetermined element, boron, carbon, and nitrogen on a substrate by performing a cycle a predetermined number of times. The cycle includes supplying a precursor gas containing the predetermined element and a halogen element to the substrate; supplying a reaction gas including an organic borazine compound to the substrate; and supplying a carbon-containing gas to the substrate. In addition, the cycle is performed under a condition in which the borazine ring skeleton in the organic borazine compound is maintained.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: January 12, 2016
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshiro Hirose, Ryuji Yamamoto, Atsushi Sano
  • Patent number: 9216598
    Abstract: A feeding apparatus includes an apparatus main body; a feeding section which feeds sheets in a feeding orientation; a feed tray which has a first tray to load some of the sheets, and a second tray provided above the first tray to load the rest of the sheets, and which is movable relative to the apparatus main body along the feeding orientation; and a guide which guides the sheets by contact with the sheets fed by the feeding section. At an end portion of the first tray on the downstream side in the feeding orientation, a first projective portion is formed to project upward and have a supporting portion capable of supporting the second tray on its upper end, and a second projective portion is formed to project upward from a different position from the first projective portion in a width direction perpendicular to the feeding orientation.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: December 22, 2015
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hirotaka Aoki, Tetsuo Asada, Shinichi Hisada, Ryuji Yamamoto