Patents by Inventor Makoto Uchida

Makoto Uchida 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: 20200243872
    Abstract: The carrier metal catalyst achieves suppression of internal resistance of a fuel cell. A carrier metal catalyst includes: a carrier powder; and metal fine particles supported on the carrier powder; wherein: the carrier powder is an aggregates of carrier fine particles; the carrier fine particles includes a chained portion structured by a plurality of crystallites being fusion bonded to form a chain; the carrier fine particles include titanium oxide; the carrier fine particles are doped with an element having a valence different from a valence of titanium; the titanium oxide of the carrier powder has an anatase phase/rutile phase ratio of 0.2 or lower; the metal fine particles have a mean particle size of 3 to 10 nm; the metal fine particles include platinum; and a cell resistance measured under standard conditions of a fuel cell prepared using the carrier metal catalyst is 0.090 ?·cm2 or lower.
    Type: Application
    Filed: January 28, 2020
    Publication date: July 30, 2020
    Applicant: UNIVERSITY OF YAMANASHI
    Inventors: Katsuyoshi KAKINUMA, Makoto UCHIDA, Akihiro IIYAMA
  • Patent number: 10693146
    Abstract: Provided is a method for efficiently manufacturing fine metal particles applicable as a fuel cell electrode catalyst. Provided is a method of manufacturing fine metal particles, including the step of: a hydrogen bubbling step to perform bubbling to a reaction solution, wherein: the reaction solution is prepared by allowing seeds of fine metal particles in a dispersed state and a water soluble noble metal precursor to co-exist in a water-containing solvent; and the bubbling is performed with a reaction gas containing a hydrogen gas, is provided.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: June 23, 2020
    Assignee: University of Yamanashi
    Inventors: Masahiro Watanabe, Hiroyuki Uchida, Hiroshi Yano, Makoto Uchida
  • Patent number: 10692305
    Abstract: A storage condition setting device searches, from among a plurality of ECUs that reside within an in-vehicle network, for a target ECU corresponding to a diagnostic item that is input to an input unit. In the case that such a target ECU exists, the storage condition setting device acquires from the target ECU equipment information of a vehicle related to storage conditions that correspond to the diagnostic item, and selects and sets as storage condition data in the target ECU only those items that correspond to the equipment information from among the storage conditions.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: June 23, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Tetsuya Ohno, Makoto Uchida
  • Patent number: 10670932
    Abstract: According to one embodiment, a display device comprises an insulating substrate, a pixel in a display area, a scanning line extending in a first direction, a signal line extending in a second direction, a shield line between the insulating substrate and the scanning line, a pixel electrode in the pixel, and a first switching element including a first semiconductor layer. The first semiconductor layer is provided between the scanning line and the shield line, and comprises an intersection area in which the first semiconductor layer intersects the scanning line. The shield line overlaps the intersection area, and is electrically connected to the scanning line through a contact portion.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: June 2, 2020
    Assignee: Japan Display Inc.
    Inventor: Makoto Uchida
  • Publication number: 20200164349
    Abstract: A carrier powder is thermodynamically stable and conductivity can be easily provided thereto. A carrier powder includes an aggregate of carrier fine particles; wherein: the carrier fine particles include a chained portion structured by fusion bonding a plurality of crystallites into a chain; the carrier fine particles contain titanium oxide; and a ratio of anatase phase/rutile phase of the titanium oxide of the carrier powder is 0.2 or lower.
    Type: Application
    Filed: July 18, 2018
    Publication date: May 28, 2020
    Applicant: UNIVERSITY OF YAMANASHI
    Inventors: Katsuyoshi KAKINUMA, Makoto UCHIDA, Akihiro IIYAMA
  • Patent number: 10627686
    Abstract: According to one embodiment, a display device comprises an insulating substrate, a pixel in a display area, a scanning line extending in a first direction, a signal line extending in a second direction, a shield line between the insulating substrate and the scanning line, a pixel electrode in the pixel, and a first switching element including a first semiconductor layer. The first semiconductor layer is provided between the scanning line and the shield line, and comprises an intersection area in which the first semiconductor layer intersects the scanning line. The shield line overlaps the intersection area, and is electrically connected to the scanning line through a contact portion.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: April 21, 2020
    Assignee: Japan Display Inc.
    Inventor: Makoto Uchida
  • Patent number: 10522573
    Abstract: According to one embodiment, a display device includes a pixel, a scanning line, a signal line, a pixel electrode, a first switching element, and a capacitance line producing capacitance together with the pixel electrode. The first switching element includes a first semiconductor layer connected to the signal line and the pixel electrode, and a first gate electrode opposed to the first semiconductor layer and connected to the scanning line. The capacitance line includes a first portion opposed to the scanning line and extending in an extension direction of the scanning line, a second portion connected to the first portion and opposed to the pixel electrode.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: December 31, 2019
    Assignee: Japan Display Inc.
    Inventors: Makoto Uchida, Takanori Tsunashima
  • Patent number: 10490827
    Abstract: To spread the use of catalysts for fuel cells, there is a demand to develop a catalyst that uses less Pt and has a high power generation efficiency. An electrode catalyst includes a support particle containing a metal oxide and a precious-metal alloy supported on the support particle. The support particle includes multiple branches, a hole between the branches, and a pore. The pore is surrounded by the branches and the hole. The precious-metal alloy includes a precious metal element and at least one or more transition elements.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: November 26, 2019
    Assignee: UNIVERSITY OF YAMANASHI
    Inventors: Katsuyoshi Kakinuma, Makoto Uchida, Akihiro Iiyama
  • Patent number: 10471420
    Abstract: The present invention provides a cation exchange resin, and a cation exchange membrane and an electrolyte membrane for a fuel cell using the same. The cation exchange resin comprises a divalent hydrophobic unit; and a divalent hydrophilic unit having divalent hydrophilic groups which are repeated via carbon-carbon bond. The divalent hydrophilic groups being composed of one aromatic ring, or being composed of a plurality of aromatic rings which are bonded to each other via a divalent hydrocarbon group, a divalent silicon-containing group, a divalent nitrogen-containing group, a divalent phosphorus-containing group, a divalent oxygen-containing group, a divalent sulfur-containing group, or carbon-carbon bond, and at least one of the aromatic rings having a cation exchange group; wherein the hydrophobic unit and the hydrophilic unit are bonded to each other via carbon-carbon bond.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: November 12, 2019
    Assignees: UNIVERSITY OF YAMANASHI, TAKAHATA PRECISION CO., LTD.
    Inventors: Kenji Miyatake, Makoto Uchida, Jyunpei Miyake, Takashi Mochizuki, Hideaki Ono, Manai Shimada, Naoki Yokota, Natsumi Yoshimura
  • Publication number: 20190341639
    Abstract: A method for forming an electrode catalyst layer by putting catalyst ink within an insulative container having a conductive nozzle in communication with the interior of the container and applying an electrospray voltage to the nozzle to cause electrospray of the catalyst ink through the tip end of the nozzle and thereby to form an electrode catalyst layer, the method includes preparing catalyst ink containing a mixture of at least electrode catalyst, polymer electrolyte binder and volatile organic compound and/or water, putting the catalyst ink within the container with a space remaining inside thereof and air-tightly sealing the container, and electrospraying with the space inside of the air-tightly sealed container being conditioned to have a negative pressure of a level at which the catalyst ink cannot drip off from the nozzle.
    Type: Application
    Filed: July 18, 2019
    Publication date: November 7, 2019
    Inventors: Makoto UCHIDA, Katsuyoshi Kakinuma
  • Publication number: 20190288297
    Abstract: A membrane-electrode assembly including a catalyst layer that includes a catalyst-supporting carrier in which a catalyst is supported on a carrier made of an inorganic oxide, and a highly hydrophobic substance having a higher degree of hydrophobicity than the inorganic oxide, the catalyst layer being formed on at least one surface of a polymer electrolyte membrane. It is preferable that, in the membrane-electrode assembly, the degree of hydrophobicity of the highly hydrophobic substance is from 0.5 vol % to 45 vol % at 25° C., the degree of hydrophobicity being defined as a concentration of methanol (vol %) when a light transmittance of a dispersion obtained by dispersing the highly hydrophobic substance in a mixed solution of water and methanol reaches 80%.
    Type: Application
    Filed: June 6, 2019
    Publication date: September 19, 2019
    Inventors: Koji TANIGUCHI, Masahiro WATANABE, Makoto UCHIDA, Katsuyoshi KAKINUMA
  • Patent number: 10381386
    Abstract: According to one embodiment, a display device includes a pixel, a scanning line, a signal line, a pixel electrode, a first switching element, and a capacitance line producing capacitance together with the pixel electrode. The first switching element includes a first semiconductor layer connected to the signal line and the pixel electrode, and a first gate electrode opposed to the first semiconductor layer and connected to the scanning line. The capacitance line includes a first portion opposed to the scanning line and extending in an extension direction of the scanning line, a second portion connected to the first portion and opposed to the pixel electrode.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: August 13, 2019
    Assignee: JAPAN DISPLAY INC.
    Inventors: Makoto Uchida, Takanori Tsunashima
  • Publication number: 20190243183
    Abstract: According to one embodiment, a display device comprises an insulating substrate, a pixel in a display area, a scanning line extending in a first direction, a signal line extending in a second direction, a shield line between the insulating substrate and the scanning line, a pixel electrode in the pixel, and a first switching element including a first semiconductor layer. The first semiconductor layer is provided between the scanning line and the shield line, and comprises an intersection area in which the first semiconductor layer intersects the scanning line. The shield line overlaps the intersection area, and is electrically connected to the scanning line through a contact portion.
    Type: Application
    Filed: April 15, 2019
    Publication date: August 8, 2019
    Applicant: Japan Display Inc.
    Inventor: Makoto UCHIDA
  • Publication number: 20190229135
    Abstract: According to one embodiment, a display device includes a pixel, a scanning line, a signal line, a pixel electrode, a first switching element, and a capacitance line producing capacitance together with the pixel electrode. The first switching element includes a first semiconductor layer connected to the signal line and the pixel electrode, and a first gate electrode opposed to the first semiconductor layer and connected to the scanning line. The capacitance line includes a first portion opposed to the scanning line and extending in an extension direction of the scanning line, a second portion connected to the first portion and opposed to the pixel electrode.
    Type: Application
    Filed: April 1, 2019
    Publication date: July 25, 2019
    Applicant: Japan Display, Inc.
    Inventors: Makoto UCHIDA, Takanori TSUNASHIMA
  • Patent number: 10359662
    Abstract: According to one embodiment, a display device comprises an insulating substrate, a pixel in a display area, a scanning line extending in a first direction, a signal line extending in a second direction, a shield line between the insulating substrate and the scanning line, a pixel electrode in the pixel, and a first switching element including a first semiconductor layer. The first semiconductor layer is provided between the scanning line and the shield line, and comprises an intersection area in which the first semiconductor layer intersects the scanning line. The shield line overlaps the intersection area, and is electrically connected to the scanning line through a contact portion.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: July 23, 2019
    Assignee: JAPAN DISPLAY INC.
    Inventor: Makoto Uchida
  • Patent number: 10355285
    Abstract: A membrane-electrode assembly including a catalyst layer that includes a catalyst-supporting carrier in which a catalyst is supported on a carrier made of an inorganic oxide, and a highly hydrophobic substance having a higher degree of hydrophobicity than the inorganic oxide, the catalyst layer being formed on at least one surface of a polymer electrolyte membrane. It is preferable that, in the membrane-electrode assembly, the degree of hydrophobicity of the highly hydrophobic substance is from 0.5 vol % to 45 vol % at 25° C., the degree of hydrophobicity being defined as a concentration of methanol (vol %) when a light transmittance of a dispersion obtained by dispersing the highly hydrophobic substance in a mixed solution of water and methanol reaches 80%.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: July 16, 2019
    Assignees: MITSUI MINING & SMELTING CO., LTD., UNIVERSITY OF YAMANASHI
    Inventors: Koji Taniguchi, Masahiro Watanabe, Makoto Uchida, Katsuyoshi Kakinuma
  • Patent number: 10333152
    Abstract: A fuel cell system and a method of operating the same is provided that is capable of reducing degradation of a cathode catalyst of a fuel cell. A fuel cell system is provided that includes a fuel cell having a catalyst used for an anode, wherein a carrier of the catalyst is composed of a material with a property where electric resistance in an oxygen containing atmosphere is greater than electric resistance in a hydrogen atmosphere; and a control device configured to control the fuel cell, when supply of fuel gas is stopped during stoppage of operation of the fuel cell, to consume all or part of the fuel gas in a fuel gas chamber, followed by introducing oxygen containing gas into the fuel gas chamber.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: June 25, 2019
    Assignee: UNIVERSITY OF YAMANASHI
    Inventors: Makoto Uchida, Katsuyoshi Kakinuma, Masahiro Watanabe, Akihiro Iiyama
  • Publication number: 20190030514
    Abstract: An electrode catalyst support, capable of improving the power of a fuel cell, and an electrode catalyst and a solid polymer fuel cell using the same. Provided is carbon black wherein pores which are at most 6 nm in pore diameter have a cumulative pore volume of less than 0.25 cm3/g, a specific surface area by BET is 500 to 900 m2/g, and a volatile matter content is 1.0 to 10.0%. Also provided are an electrode catalyst for a fuel cell comprising a support which includes this carbon black, and a solid polymer fuel cell having the electrode catalyst.
    Type: Application
    Filed: November 28, 2016
    Publication date: January 31, 2019
    Applicants: University of Yamanashi, Denka Company Limited
    Inventors: Makoto UCHIDA, Katsuyoshi KAKINUMA, Daiki IKEDA, Yusaku HARADA, Takeshi MIYAKAWA
  • Publication number: 20190025659
    Abstract: According to one embodiment, a display device including a first source line, a second source line and a third source line arranged in a first direction, a first gate line crossing the first source line, a second gate line separated from the first gate line in the first direction and crossing the third source line, a first semiconductor layer including a first crossing portion which crosses the first gate line and is located on a first source line side between the first source line and the second source line, and a second semiconductor layer including a second crossing portion which crosses the second gate line and is located on a third source line side between the second source line and the third source line.
    Type: Application
    Filed: July 16, 2018
    Publication date: January 24, 2019
    Applicant: Japan Display Inc.
    Inventors: Makoto UCHIDA, Takanori Tsunashima, Hitoshi Tanaka
  • Publication number: 20190019466
    Abstract: According to one embodiment, a driving method of a display device including a display area in which liquid crystal pixels are arranged in a matrix, a plurality of scanning lines arranged along display rows, a plurality of signal lines arranged along display columns, a backlight which illuminates the display area, and a controller which controls a display operation, the driving method includes via the controller, driving the scanning lines alternately from a center of the display area to both edges of the display area, outputting video data corresponding to a driven scanning line to the signal lines in synchronization with the driving of the scanning line, and turning on the backlight for a predetermined time after outputting the video data of one frame.
    Type: Application
    Filed: July 9, 2018
    Publication date: January 17, 2019
    Applicant: Japan Display Inc.
    Inventors: Takanori Tsunashima, Yoshiro Aoki, Makoto Uchida