Patents by Inventor Kunihiro Sakai

Kunihiro Sakai 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: 20210079546
    Abstract: A hydrogen system includes: a compressor in which protons extracted from an anode fluid supplied to an anode move to a cathode through an electrolyte membrane and compressed hydrogen is generated; and a first eliminator including: a water-permeable membrane; a cathode gas flow path through which a cathode gas discharged from the cathode of the compressor flows, the cathode gas flow path being provided on one main surface of the water-permeable membrane; and an accommodation portion provided on the other main surface of the water-permeable membrane and filled with a liquid at a pressure lower than that of the cathode gas. The first eliminator removes moisture contained in the cathode gas.
    Type: Application
    Filed: December 1, 2020
    Publication date: March 18, 2021
    Inventors: HIDENOBU WAKITA, TOMOYA KAMATA, OSAMU SAKAI, KUNIHIRO UKAI, YUKIMUNE KANI, KEIICHI YAMAMOTO, MISA YOROZUYA
  • Patent number: 10811712
    Abstract: A hydrogen supply system includes an electrochemical hydrogen pump which includes: an electrolyte membrane; an anode provided on a first surface of the electrolyte membrane; a cathode provided on a second surface of the electrolyte membrane opposite to the first surface; and a current adjuster adjusting a current amount flowing between the anode and the cathode, and which performs a hydrogen supply operation by allowing a current to flow between the anode and the cathode using the current adjuster so as to boost the pressure of hydrogen which is supplied to an anode side at a cathode side and to supply the pressure-boosted hydrogen to a hydrogen demander; and a dew point adjuster adjusting a dew point of a mixed gas in which a hydrogen-containing gas which is discharged from the anode side and a hydrogen-containing gas which is supplied from an outside are mixed together.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: October 20, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Osamu Sakai, Kunihiro Ukai, Hidenobu Wakita
  • Patent number: 10756376
    Abstract: A hydrogen supply system includes: an electrochemical hydrogen pump including an electrolyte membrane, an anode and a cathode provided to a first and second main surfaces of the electrolyte membrane, respectively, an anode flow path and cathode flow path through which hydrogen flows, and a voltage applicator applying a voltage between the anode and cathode, pressurizing and sending hydrogen supplied to the anode via the anode flow path to the cathode by applying a voltage by the voltage applicator, and supplying the pressurized hydrogen in the cathode flow path to a hydrogen reservoir; a pressure adjuster adjusting a cathode flow path pressure; and a controller controlling the pressure adjuster and making the cathode flow path pressure higher than an anode flow path pressure before starting a hydrogen pressurization action for pressurizing and supplying hydrogen supplied to the anode flow path to the cathode flow path.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: August 25, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hidenobu Wakita, Kunihiro Ukai, Osamu Sakai, Yoichiro Tsuji
  • Patent number: 10722841
    Abstract: A hydrogen supply system includes: a controller; and an electrochemical hydrogen pump including: an electrolyte membrane; a pair of electrodes provided on two surfaces of the electrolyte membrane; and a current adjuster adjusting a current flowing between the electrodes, the electrochemical hydrogen pump performs a hydrogen supply operation supplying pressure-boosted hydrogen to a hydrogen demander by allowing a current to flow between the electrodes by the current adjuster; and when a cumulative hydrogen supply amount which is supplied to the hydrogen demander from start to completion of the hydrogen supply operation to the hydrogen demander from the electrochemical hydrogen pump is smaller than a cumulative hydrogen supply amount in another hydrogen supply operation, the controller controls the current adjuster so that the current flowing between the electrodes is decreased to be smaller than that in the another hydrogen supply operation.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: July 28, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kunihiro Ukai, Osamu Sakai, Atsuo Okaichi
  • Patent number: 10703032
    Abstract: A method for manufacturing a hollow part with a branch, including a resin filling step of filling a mold, the mold having a main cavity in which a hollowing piece is placed, and a branch cavity to communicate with the main cavity, in which a slide shaft is inserted to advance and withdraw, and that forms a branch pipe portion in an annular space between the branch cavity and the slide shaft, a step of forming a hollow main pipe portion by moving the hollowing piece to force excess resin out of the main cavity, and a shaft removing step of withdrawing the slide shaft to form a branch hollow portion, the hollow part with a branch being made of a resin and having the branch pipe portion integrally connected to the main pipe portion such that the main hollow portion and the branch hollow portion communicate with each other.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: July 7, 2020
    Assignees: TOYODA IRON WORKS CO., LTD., RP TOPLA LIMITED
    Inventors: Kunihiro Iwata, Hideaki Sakai, Yasuhiro Sone, Takashi Hirose, Kazuhiro Yokobori
  • Patent number: 10629926
    Abstract: A solid oxide fuel cell system includes: an igniting portion configured to ignite a raw material when starting up the solid oxide fuel cell system; a raw material supply portion configured to supply the raw material; a reforming air supply portion configured to supply reforming air; and an electric power generation air supply portion configured to supply electric power generation air. When starting up the solid oxide fuel cell system, the raw material supply portion supplies the raw material, and the electric power generation air supply portion supplies the electric power generation air. The igniting portion ignites the raw material. After the ignition, the reforming air supply portion supplies the reforming air. With this, the safety can be increased in consideration of characteristics in respective phases from the start-up of the solid oxide fuel cell system until the electric power generation.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: April 21, 2020
    Assignee: Panasonic Corporation
    Inventors: Osamu Sakai, Tatsuo Fujita, Kunihiro Ukai, Takashi Kakuwa, Taiichiro Sakamoto, Toshiharu Ooe
  • Publication number: 20190383283
    Abstract: An electrochemical hydrogen pump includes at least one hydrogen pump unit including an electrolyte membrane, an anode on one main surface of the electrolyte membrane, a cathode on the other main surface of the electrolyte membrane, an anode separator on the anode, and a cathode separator on the cathode, the at least one hydrogen pump unit transferring, to the cathode, hydrogen supplied to the anode and pressurizing the hydrogen, a first fixing member for preventing movement of the cathode separator in a direction in which the cathode separator is stacked, a first end plate on the anode separator at one end in the stacking direction, a second end plate on the cathode separator at the other end in the stacking direction, and a first gas flow channel through which hydrogen in the cathode is supplied to a first space between the second end plate and the cathode separator.
    Type: Application
    Filed: May 21, 2019
    Publication date: December 19, 2019
    Inventors: KUNIHIRO UKAI, NORIHIKO KAWABATA, OSAMU SAKAI, HIDENOBU WAKITA, JIN ZHANG, YUKIMUNE KANI
  • Publication number: 20190368483
    Abstract: A hydrogen supply system includes: an electrochemical hydrogen pump including a proton-conductive electrolyte membrane, an anode provided to a first and second main surfaces of the proton-conductive electrolyte membrane, respectively, an anode flow path and cathode flow path through which hydrogen flows, and a voltage applicator applying a voltage between the anode and cathode, pressurizing and sending hydrogen supplied to the anode to the cathode by applying a voltage by the voltage applicator, and supplying the pressurized hydrogen in the cathode flow path to a hydrogen reservoir; a humidity adjuster adjusting humidity of at least one of the anode and cathode flow paths; and a controller controlling the humidity adjuster to increase the humidity of at least one of the anode and cathode flow paths in supplying hydrogen with relative humidity of less than 100% to the anode flow path and driving the electrochemical hydrogen pump.
    Type: Application
    Filed: April 2, 2019
    Publication date: December 5, 2019
    Inventors: HIDENOBU WAKITA, KUNIHIRO UKAI, OSAMU SAKAI
  • Publication number: 20190363386
    Abstract: A hydrogen supply system includes: an electrochemical hydrogen pump including an electrolyte membrane, an anode and a cathode provided to a first and second main surfaces of the electrolyte membrane, respectively, an anode flow path and cathode flow path through which hydrogen flows, and a voltage applicator applying a voltage between the anode and cathode, pressurizing and sending hydrogen supplied to the anode via the anode flow path to the cathode by applying a voltage by the voltage applicator, and supplying the pressurized hydrogen in the cathode flow path to a hydrogen reservoir; a pressure adjuster adjusting a cathode flow path pressure; and a controller controlling the pressure adjuster and making the cathode flow path pressure higher than an anode flow path pressure before starting a hydrogen pressurization action for pressurizing and supplying hydrogen supplied to the anode flow path to the cathode flow path.
    Type: Application
    Filed: April 8, 2019
    Publication date: November 28, 2019
    Inventors: HIDENOBU WAKITA, KUNIHIRO UKAI, OSAMU SAKAI, YOICHIRO TSUJI
  • Patent number: 10456966
    Abstract: A hollow body molding device forming a hollow molded body in a main cavity of a mold having in its one end a pressure port including a floating core by injecting molten resin through an injection gate into the main cavity having an outlet, and then pressure-injecting pressurized fluid through the pressure port into the main cavity to move the core toward the outlet through the resin injected into the main cavity to extrude the resin through the outlet and discharge it into a waste cavity, the device having: a floating core accommodating portion located between the outlet and a communication passage leading to the waste cavity and adjoins the main cavity and accommodates the core moved to the outlet by the fluid, in the device, a floating core accommodating portion inside diameter is smaller than a main cavity outlet diameter and is larger than a floating core outside diameter.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: October 29, 2019
    Assignee: TOYODA IRON WORKS CO., LTD.
    Inventors: Kunihiro Iwata, Hideaki Sakai, Yasuhiro Sone, Yoshinori Sadakata, Kazuhiro Yokobori
  • Patent number: 10340111
    Abstract: Provided herein is a fuse that includes a conductive member, two shielding portions arranged on the conductive member, and a case. The conductive member includes a two bars on each end of the conductive member and an element (e.g., melting portion) that integrally connects the two bars. The two shielding members are disk shaped and are situated on the conductive member between the element and the two bars. The case encloses the element and the two shielding members.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: July 2, 2019
    Assignee: TOYODA IRON WORKS CO., LTD.
    Inventors: Shunsuke Kawai, Hideaki Sakai, Yasuhiro Sone, Kunihiro Iwata
  • Patent number: 10320016
    Abstract: A high-temperature fuel cell system includes a fuel cell that includes an anode and a cathode and that generates power by using a fuel gas and an oxidant gas, a fuel-gas path along which the fuel gas flows, an oxidant-gas path along which the oxidant gas flows, an anode-off-gas path along which an anode off-gas flows, a cathode-off-gas path along which a cathode off-gas flows, a combustion space in communication with the anode-off-gas path and the cathode-off-gas path and in which the anode off-gas and the cathode off-gas are burned, a flue-gas path along which a flue gas flows, a cathode-off-gas branch portion disposed on the cathode-off-gas path between the combustion space and the cathode and at which some of the cathode off-gas is branched from the cathode-off-gas path, and a first heat exchanger that enables heat exchange between the oxidant gas, the flue gas, and the cathode off-gas.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: June 11, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Osamu Sakai, Kunihiro Ukai, Yasushi Kaneko, Shigenori Onuma, Takashi Kakuwa
  • Publication number: 20190173114
    Abstract: A hydrogen supply system includes an electrochemical hydrogen pump which includes: an electrolyte membrane; an anode provided on a first surface of the electrolyte membrane; a cathode provided on a second surface of the electrolyte membrane opposite to the first surface; and a current adjuster adjusting a current amount flowing between the anode and the cathode, and which performs a hydrogen supply operation by allowing a current to flow between the anode and the cathode using the current adjuster so as to boost the pressure of hydrogen which is supplied to an anode side at a cathode side and to supply the pressure-boosted hydrogen to a hydrogen demander; and a dew point adjuster adjusting a dew point of a mixed gas in which a hydrogen-containing gas which is discharged from the anode side and a hydrogen-containing gas which is supplied from an outside are mixed together.
    Type: Application
    Filed: November 21, 2018
    Publication date: June 6, 2019
    Inventors: OSAMU SAKAI, KUNIHIRO UKAI, HIDENOBU WAKITA
  • Patent number: 10301179
    Abstract: An apparatus includes: an electrolyte membrane; a cathode catalyst layer provided to one main surface of the electrolyte membrane; an anode catalyst layer provided to the other main surface of the electrolyte membrane; a cathode gas diffusion layer provided on a main surface of the cathode catalyst layer not facing the electrolyte membrane; a separator including a recess through which cathode gas flows; an anode gas diffusion layer provided on a main surface of the anode catalyst layer not facing the electrolyte membrane; a voltage applicator applying a voltage between the cathode catalyst layer and the anode catalyst layer; and a fastener fastening a laminated body. The cathode gas diffusion layer is accommodated in the recess, projects from the recess in a thickness direction before fastening of the laminated body, and includes an elastic member between side surfaces of the cathode gas diffusion layer and of the recess.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: May 28, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Osamu Sakai, Kunihiro Ukai, Hidenobu Wakita, Yukimune Kani, Yuuichi Yakumaru, Takashi Sotoku
  • Publication number: 20170327867
    Abstract: The present invention relates to sample-to-answer systems, devices, cartridges, and method of using the same for detecting the presence of microorganisms in a sample, such as bacteria.
    Type: Application
    Filed: December 22, 2016
    Publication date: November 16, 2017
    Applicant: Canon U.S. Life Sciences, Inc.
    Inventors: Abhijit Dohale, Arvind Virmani, Brian Scrivens, Christopher Sneeder, Denis Alias, George Maltezos, Hanyoup Kim, Harini Shandilya, Hongye Liang, Jason Zsak, Johnathan Stuart Coursey, Kenton C. Hasson, Melissa Gosse, Shulin Zeng, Yasuyuki Numajiri, Makoto Ogusu, Yoichi Murakami, Kunihiro Sakai
  • Patent number: 7297039
    Abstract: A method of manufacturing an image forming apparatus having an envelope made of members inclusive of a first substrate and a second substrate disposed at a space being set therebetween, image forming means and spacers disposed in the envelope, the spacers maintaining the space, the method including the steps of forming a spacer having a desired shape by cutting a spacer base member, and abutting the spacer upon the first and second substrates at a non-cut surfaces of the spacer.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: November 20, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiro Fushimi, Kunihiro Sakai
  • Publication number: 20070072507
    Abstract: A method of manufacturing an image forming apparatus having an envelope made of members inclusive of a first substrate and a second substrate disposed at a space being set therebetween, image forming means and spacers disposed in the envelope, the spacers maintaining the space, the method comprising the steps of forming a spacer having a desired shape by cutting a spacer base member, and abutting the spacer upon the first and second substrates at non-cut surfaces of the spacer.
    Type: Application
    Filed: November 29, 2006
    Publication date: March 29, 2007
    Inventors: Masahiro Fushimi, Kunihiro Sakai
  • Patent number: 7160168
    Abstract: A method of manufacturing an image forming apparatus having an envelope made of members inclusive of a first substrate and a second substrate disposed at a space being set therebetween, image forming means and spacers disposed in the envelope, the spacers maintaining the space, the method comprising the steps of forming a spacer having a desired shape by cutting a spacer base member, and abutting the spacer upon the first and second substrates at non-cut surfaces of the spacer.
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: January 9, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiro Fushimi, Kunihiro Sakai
  • Patent number: 6926571
    Abstract: A method of manufacturing a spacer having a low-resistance film without using any exhaust device, and being interposed between a first substrate having an image forming member and a second substrate having an electron-emitting device. The method including the steps of preparing a spacer substrate with an edge including a tapered, chamfered or arcuated portion, preparing a liquid comprising a dispersed conductive material or dissolved conductive material, dipping the edge into the liquid, and drying and/or baking the spacer substrate after the dipping step.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: August 9, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuhiro Ito, Kunihiro Sakai, Masahiro Fushimi
  • Publication number: 20040152391
    Abstract: A method of manufacturing an image forming apparatus having an envelope made of members inclusive of a first substrate and a second substrate disposed at a space being set therebetween, image forming means and spacers disposed in the envelope, the spacers maintaining the space, the method comprising the steps of forming a spacer having a desired shape by cutting a spacer base member, and abutting the spacer upon the first and second substrates at non-cut surfaces of the spacer.
    Type: Application
    Filed: January 22, 2004
    Publication date: August 5, 2004
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masahiro Fushimi, Kunihiro Sakai