Patents by Inventor Hirofumi Kan

Hirofumi Kan 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: 10957930
    Abstract: A solid alkaline fuel cell has a cathode that is supplied with an oxidant which contains oxygen, an anode that is supplied with a fuel which contains hydrogen atoms, and an inorganic solid electrolyte that is disposed between the anode and the cathode and that exhibits a hydroxide ion conductivity. The inorganic solid electrolyte enables the permeation of water of greater than or equal to 80 ?g/min·cm2 and less than or equal to 5400 ?g/min·cm2 per unit surface area of a cathode-side surface.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: March 23, 2021
    Inventors: Yukihisa Takeuchi, Hirofumi Kan, Toshiyuki Nakamura, Makoto Ohmori
  • Publication number: 20210043962
    Abstract: A manifold includes a first manifold main body and a second manifold main body. The first manifold main body includes a first gas chamber configured to communicate with a first gas channel. The second manifold main body includes a second gas chamber configured to communicate with a second gas channel. The second manifold main body is disposed in the first manifold main body.
    Type: Application
    Filed: October 27, 2020
    Publication date: February 11, 2021
    Inventors: Noriyuki OGASAWARA, Yuki TANAKA, Masayuki SHINKAI, Hirofumi KAN, Makoto OHMORI
  • Patent number: 10862138
    Abstract: A fuel cell includes a porous support substrate and a power generation element portion. The support substrate includes a first end portion that is linked to a gas supply chamber and a gas collection portion, and a second end portion that is located opposite to the first end portion. The support substrate includes a first gas channel and a second gas channel. The first gas channel extends from the first end portion toward the second end portion. The first gas channel is connected to the gas supply chamber. The second gas channel is connected to the first gas channel on the second end portion side. The second gas channel extends from the second end portion toward the first end portion. The second gas channel is connected to the gas collection chamber.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: December 8, 2020
    Assignee: NGK INSULATORS, LTD.
    Inventors: Noriyuki Ogasawara, Hirofumi Kan, Makoto Ohmori, Takashi Ryu
  • Patent number: 10727524
    Abstract: A cell stack device includes a manifold, a fuel cell, and an oxygen-containing-gas ejection portion. The manifold includes a fuel gas supply chamber and a fuel gas collection chamber. The fuel cell extends upward from the manifold. The oxygen-containing-gas ejection portion is disposed upward of the center of the fuel cell. The oxygen-containing-gas ejection portion ejects oxygen-containing gas toward the fuel cell. A support substrate of the fuel cell includes a first gas channel and a second gas channel. The first gas channel is connected to a fuel gas supply chamber, and the second gas channel is connected to the fuel gas collection chamber. The first gas channel and the second gas channel are connected to each other in an upper end portion of the fuel cell.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: July 28, 2020
    Assignee: NGK INSULATORS, LTD.
    Inventors: Noriyuki Ogasawara, Hirofumi Kan, Makoto Ohmori, Takashi Ryu
  • Publication number: 20200144634
    Abstract: A fuel cell includes a support substrate, at least one power generation element portion, at least one first gas channel, and at least one second gas channel. The power generation element portion is disposed on the support substrate. The first and second gas channels extend from a proximal end portion toward a distal end portion in the support substrate and are connected to each other in the distal end portion. The sum of a cross-sectional area of the at least one first gas channel is smaller than the sum of a cross-sectional area of the at least one second gas channel.
    Type: Application
    Filed: October 7, 2019
    Publication date: May 7, 2020
    Inventors: Ryuhei OHARA, Hirofumi KAN, Makoto OHMORI
  • Patent number: 10593977
    Abstract: A solid alkaline fuel cell has a cathode that is supplied with an oxidant which contains oxygen, an anode that is supplied with a fuel which contains hydrogen atoms, and an inorganic solid electrolyte that is disposed between the anode and the cathode and that exhibits a hydroxide ion conductivity. The inorganic solid electrolyte enables the permeation of a fuel in an amount that produces carbon dioxide at the cathode of greater than or equal to 0.04 ?mol/s·cm2 and less than or equal to 2.5 ?mol/s·cm2 per unit surface area of a cathode-side surface.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: March 17, 2020
    Assignee: NGK Insulators, Ltd.
    Inventors: Yukihisa Takeuchi, Hirofumi Kan, Toshiyuki Nakamura, Makoto Ohmori
  • Publication number: 20200083554
    Abstract: A manifold includes first and second manifold main bodies. The first manifold main body includes a gas supply chamber that is connected to a first gas channel, and the second manifold main body includes a gas collection chamber that is connected to a second gas channel. The first manifold main body includes a first top plate, a first bottom plate, and a first side plate. The first top plate includes a first through hole for connecting the first gas channel and the gas supply chamber. The second manifold main body includes a second top plate, a second bottom plate, and a second side plate. The second top plate includes a second through hole for connecting the second gas channel and the gas collection chamber. The first bottom plate and the second bottom plate are constituted by members that are separate from each other.
    Type: Application
    Filed: September 3, 2019
    Publication date: March 12, 2020
    Inventors: Noriyuki OGASAWARA, Yuki TANAKA, Masayuki SHINKAI, Hirofumi KAN, Makoto OHMORI
  • Publication number: 20200067124
    Abstract: A cell stack device includes a plurality of electrochemical cells, a manifold, a gas supply portion, and a gas collection portion. The manifold includes a gas supply chamber and a gas collection chamber that extend in a direction in which the electrochemical cells are arranged. A support substrate of an electrochemical cell includes a first gas channel and a second gas channel. The first gas channel is connected to the gas supply chamber, and the second gas channel is connected to the gas collection chamber.
    Type: Application
    Filed: November 4, 2019
    Publication date: February 27, 2020
    Inventors: Noriyuki OGASAWARA, Hirofumi KAN, Makoto OHMORI, Takashi RYU
  • Publication number: 20200036015
    Abstract: An electrochemical cell includes a porous support substrate and a power generation element portion. The support substrate includes at least one first gas channel and at least one second gas channel. The first gas channel extends from a first end portion toward a second end portion, and is connected to a gas supply chamber. The second gas channel is connected to the first gas channel on the second end portion side. The second gas channel extends from the second end portion toward the first endportion, and is connected to a gas collection chamber. A ratio (p0/L) of a pitch p0 of a first gas channel and a second gas channel that are adjacent to each other to a distance L between the power generation element portion and a first end surface of the support substrate located on the first end portion side is 3.3 or less.
    Type: Application
    Filed: October 4, 2019
    Publication date: January 30, 2020
    Inventors: Noriyuki OGASAWARA, Hirofumi KAN, Makoto OHMORI, Takashi RYU
  • Publication number: 20200020969
    Abstract: A cell stack device includes a manifold, a fuel cell, and an oxygen-containing-gas ejection portion. The manifold includes a fuel gas supply chamber and a fuel gas collection chamber. The fuel cell extends upward from the manifold. The oxygen-containing-gas ejection portion is disposed upward of the center of the fuel cell. The oxygen-containing-gas ejection portion ejects oxygen-containing gas toward the fuel cell. A support substrate of the fuel cell includes a first gas channel and a second gas channel. The first gas channel is connected to a fuel gas supply chamber, and the second gas channel is connected to the fuel gas collection chamber. The first gas channel and the second gas channel are connected to each other in an upper end portion of the fuel cell.
    Type: Application
    Filed: August 27, 2019
    Publication date: January 16, 2020
    Inventors: Noriyuki OGASAWARA, Hirofumi Kan, Makoto Ohmori, Takashi Ryu
  • Publication number: 20200020959
    Abstract: A fuel cell includes a porous support substrate and a power generation element portion. The support substrate includes a first end portion that is linked to a gas supply chamber and a gas collection portion, and a second end portion that is located opposite to the first end portion. The support substrate includes a first gas channel and a second gas channel. The first gas channel extends from the first end portion toward the second end portion. The first gas channel is connected to the gas supply chamber. The second gas channel is connected to the first gas channel on the second end portion side. The second gas channel extends from the second end portion toward the first end portion. The second gas channel is connected to the gas collection chamber.
    Type: Application
    Filed: August 19, 2019
    Publication date: January 16, 2020
    Inventors: Noriyuki OGASAWARA, Hirofumi KAN, Makoto OHMORI, Takashi RYU
  • Publication number: 20200006789
    Abstract: A cell stack device includes a manifold and a fuel cell. The manifold includes a gas supply chamber and a gas collection chamber. The fuel cell includes a support substrate and a power generation element portion. The support substrate includes first and second gas channels. The first gas channel is connected to the gas supply chamber, and the second gas channel is connected to the gas collection chamber. The first gas channel is open in the gas supply chamber at a proximal end portion. The second gas channel is open in the gas collection chamber at a proximal end portion. The first and second gas channels are connected to each other on the distal end portion side. The first and second gas channels are configured such that a pressure loss of gas in the first gas channel is smaller than a pressure loss of gas in the second gas channel.
    Type: Application
    Filed: September 4, 2019
    Publication date: January 2, 2020
    Inventors: Risako ITO, Makoto OHMORI, Hirofumi KAN, Yuki TANAKA, Masayuki SHINKAI
  • Patent number: 10490836
    Abstract: A method of power generation for a solid alkaline fuel cell includes the step of exposing a cathode-side surface of the inorganic solid electrolyte to an atmosphere containing carbon dioxide of greater than or equal to 600 ppm and less than or equal to 20000 ppm.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: November 26, 2019
    Assignee: NGK INSULATORS, LTD.
    Inventors: Yukihisa Takeuchi, Hirofumi Kan, Toshiyuki Nakamura, Makoto Ohmori
  • Publication number: 20190214666
    Abstract: The solid alkaline fuel cell has a cathode that is supplied with an oxidant which contains oxygen, an anode that is supplied with a fuel which contains hydrogen atoms, and an inorganic solid electrolyte that is disposed between the anode and the cathode and that exhibits hydroxide ion conductivity. The inorganic solid electrolyte enables permeation of a fuel in an amount that produces carbon dioxide at the cathode of greater than or equal to 0.04 ?mol/s·cm2 and less than or equal to 2.5 ?mol/s·cm2 per unit surface area of a cathode-side surface.
    Type: Application
    Filed: March 12, 2019
    Publication date: July 11, 2019
    Inventors: Yukihisa TAKEUCHI, Hirofumi KAN, Toshiyuki NAKAMURA, Makoto OHMORI
  • Publication number: 20190207237
    Abstract: The solid alkaline fuel cell has a cathode that is supplied with an oxidant which contains oxygen, an anode that is supplied with a fuel which contains hydrogen atoms, and an inorganic solid electrolyte that is disposed between the anode and the cathode and that exhibits hydroxide ion conductivity. The inorganic solid electrolyte enables permeation of water of greater than or equal to 80 ?g/min·cm2 and less than or equal to 5400 ?g/min·cm2 per unit surface area of a cathode-side surface.
    Type: Application
    Filed: March 7, 2019
    Publication date: July 4, 2019
    Inventors: Yukihisa TAKEUCHI, Hirofumi KAN, Toshiyuki NAKAMURA, Makoto OHMORI
  • Publication number: 20190207239
    Abstract: A method of power generation for a solid alkaline fuel cell includes the step of exposing a cathode-side surface of the inorganic solid electrolyte to an atmosphere containing carbon dioxide of greater than or equal to 600 ppm and less than or equal to 20000 ppm.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Inventors: Yukihisa TAKEUCHI, Hirofumi KAN, Toshiyuki NAKAMURA, Makoto OHMORI
  • Patent number: 10206272
    Abstract: The present invention relates to a method for manufacturing a tracer-encapsulated solid pellet for magnetic-confinement fusion, the method comprising a liquid droplet formation step of discharging an organic liquid containing an organic solvent into a stabilizing liquid to thereby form liquid droplets 12, and an organic solvent removal step of removing the organic solvent from the liquid droplets 12A. The organic liquid to be used is a liquid having a first organic polymer containing tracer atoms and a second organic polymer being an organic polymer different from the first organic polymer dissolved in the organic solvent, wherein the first organic polymer and the second organic polymer can be mutually phase-separated.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: February 12, 2019
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Nakahiro Satoh, Ryo Yoshimura, Masaru Takagi, Toshiyuki Kawashima, Hirofumi Kan
  • Patent number: 10166086
    Abstract: A dental therapy apparatus which enables a dental therapy more surely and less invasively is provided. A dental therapy apparatus (10A) comprises a laser light source (11) emitting laser light (L) having a wavelength within a wavelength region of 5.7 to 6.6 ?m; a controller (12) pulse-driving the laser light source and controlling at least one of pulse width and repetition frequency of pulsed laser light emitted from the laser light source; and an irradiation optical system for irradiating a tooth (20) including a carious part (21) with the light emitted from the laser light source. In this dental therapy apparatus, the controller controls at least one of the pulse width and repetition frequency of the pulsed light, so as to selectively cut the carious part (21).
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: January 1, 2019
    Assignees: OSAKA UNIVERSITY, HAMAMATSU PHOTONICS K.K.
    Inventors: Kunio Awazu, Katsunori Ishii, Naota Akikusa, Tadataka Edamura, Hirofumi Kan
  • Patent number: 9953729
    Abstract: A radiation generating apparatus comprises a fuel storage unit 20 for storing a mixed liquid 61, a pressure application unit 10 for applying a pressure to the mixed liquid 61, a jet formation unit 30 for forming a jet 61a of the mixed liquid 61, a reaction unit 44 for forming the jet 61a of the mixed liquid 61 therein, a pressure adjustment unit 41 for setting a pressure in the reaction unit 44 lower than an internal pressure of the jet formation unit 30, and a light source unit 45 for irradiating a particle group 63a with laser light L1.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: April 24, 2018
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Takeshi Watari, Katsunobu Nishihara, Masaru Takagi, Nakahiro Satoh, Toshiyuki Kawashima, Hirofumi Kan
  • Patent number: 9882354
    Abstract: A semiconductor laser device includes: a semiconductor laser array in which a plurality of active layers that emit laser lights with a divergence angle ?S (>4°) in a slow axis direction are arranged; a first optical element that reflects first partial lights by a first reflecting surface and returns the first partial lights to the active layers; and a second optical element that reflects partial mode lights of second partial lights by a second reflecting surface and returns the partial mode lights to the active layers, the first reflecting surface forms an angle equal to or greater than 2° and less than (?S/2) with a plane perpendicular to an optical axis direction of the active layers, and the second reflecting surface forms an angle greater than (??S/2) and equal to or less than ?2° with the plane perpendicular to the optical axis direction of the active layers.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: January 30, 2018
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yujin Zheng, Hirofumi Kan