Patents by Inventor Kosuke Kawamoto

Kosuke Kawamoto 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: 20240167184
    Abstract: A surface-treated steel sheet according to one embodiment of the present invention includes a base steel sheet and a plating layer containing Ni and W which is provided on the surface of the base steel sheet, and in a region from the outmost surface of the plating layer to a depth of 150 nm, a proportion (unit atomic %) of the average W concentration with respect to a total of the average Ni concentration, the average W concentration, and the average Fe concentration is 2.0 to 20.0 atomic %, and in a region of the plating layer from a depth of 150 nm to a depth of 300 nm, the proportion (unit atomic %) of the average W concentration with respect to the total of the average Ni concentration, the average W concentration, and the average Fe concentration is 0.7 times or less the proportion in the region from the outmost surface of the plating layer to a depth of 150 nm.
    Type: Application
    Filed: March 30, 2022
    Publication date: May 23, 2024
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Kosuke KAWAMOTO, Yasuto GOTO, Katsumasa MATSUMOTO, Tatsuo NAGATA
  • Patent number: 11982010
    Abstract: A Ni-plated steel sheet according to one aspect of the present invention includes a base steel sheet and a Ni plating layer provided on a surface of the base steel sheet, the Ni plating layer has a Ni—Fe alloy layer formed on a surface of the base steel sheet, and a ratio of a Zn content to a Ni content in the Ni plating layer is 0.0005% to 0.10%. A manufacturing method of the Ni-plated steel sheet according to one aspect of the present invention has electroplating a base steel sheet using a Ni plating bath in which [Zn2+]/[Ni2+] is set to 0.0005% to 0.10% to obtain a material Ni-plated steel sheet, and annealing the material Ni-plated steel sheet.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: May 14, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Kosuke Kawamoto, Yasuto Goto
  • Patent number: 11967294
    Abstract: A common electrode driver includes an inverting amplifier including a first resistor, a second resistor, and an operational amplifier, and a resistance ratio adjustment circuit that adjusts, in accordance with a length of one horizontal scan period, a resistance ratio being a ratio of a resistance value of the second resistor to a resistance value of the first resistor. A feedback voltage is provided to one end of the first resistor. The resistance ratio adjustment circuit sets the resistance ratio when second driving is performed, in which a length of one horizontal scan period is a second time longer than a first time, to be smaller than the resistance ratio when first driving is performed, in which a length of one horizontal scan period is the first time.
    Type: Grant
    Filed: May 1, 2023
    Date of Patent: April 23, 2024
    Assignee: Sharp Display Technology Corporation
    Inventors: Masaki Uehata, Yasuki Mori, Kohji Saitoh, Takayuki Mizunaga, Kazuya Kondoh, Takashi Nojima, Kazuhisa Yoshimoto, Kosuke Kawamoto, Hiroyuki Kito, Kazuki Nakamichi
  • Publication number: 20240005885
    Abstract: A common electrode driver includes an inverting amplifier including a first resistor, a second resistor, and an operational amplifier, and a resistance ratio adjustment circuit that adjusts, in accordance with a length of one horizontal scan period, a resistance ratio being a ratio of a resistance value of the second resistor to a resistance value of the first resistor. A feedback voltage is provided to one end of the first resistor. The resistance ratio adjustment circuit sets the resistance ratio when second driving is performed, in which a length of one horizontal scan period is a second time longer than a first time, to be smaller than the resistance ratio when first driving is performed, in which a length of one horizontal scan period is the first time.
    Type: Application
    Filed: May 1, 2023
    Publication date: January 4, 2024
    Applicant: Sharp Display Technology Corporation
    Inventors: Masaki UEHATA, Yasuki MORI, Kohji SAITOH, Takayuki MIZUNAGA, Kazuya KONDOH, Takashi NOJIMA, Kazuhisa YOSHIMOTO, Kosuke KAWAMOTO, Hiroyuki KITO, Kazuki NAKAMICHI
  • Publication number: 20230415453
    Abstract: The surface-treated steel sheet includes an alloy layer containing Ni and Co. In a case where, in a cross section obtained by cutting the alloy layer in the thickness direction, a range having a width of 2000 nm and extending from the surface of the alloy layer to a depth of 100 nm is partitioned into regions each having a width of 100 nm and a depth of 100 nm, within the range the alloy layer includes a plurality of high Co concentration regions in each of which the ratio of a Co concentration to a sum of the Co concentration and a Ni concentration within the partitioned region is 0.8 or more, and a plurality of alloyed regions in each of which a ratio of the Co concentration to a sum of the Co concentration and the Ni concentration within the partitioned region is less than 0.8.
    Type: Application
    Filed: November 29, 2021
    Publication date: December 28, 2023
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Kosuke KAWAMOTO, Yasuto GOTO
  • Publication number: 20230407509
    Abstract: A surface-treated steel sheet of the present disclosure includes a steel sheet, and an alloy layer containing Ni and Co on a surface of the steel sheet. A surface roughness Ra1 of the surface of the alloy layer over a sampling length of 5.0 mm in the width direction of the steel sheet is 2.0 ?m or less. Ra2 that denotes the arithmetic mean height of a roughness curve of the surface of the alloy layer over a sampling length of 10 ?m in the width direction of the steel sheet is 20 nm or less, and RSm that denotes the mean length of roughness curve elements over the sampling length of 10 ?m in the width direction of the steel sheet is 700 nm or more, Ra2 and RSm being measured using an atomic force microscope.
    Type: Application
    Filed: November 29, 2021
    Publication date: December 21, 2023
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Kosuke KAWAMOTO, Yasuto GOTO, Yuta DAIROKUNO, Koki SHIMADA
  • Publication number: 20230407510
    Abstract: A surface-treated steel sheet includes a steel sheet, and an Ni—Co—Fe alloy layer containing Ni, Co, and Fe on the steel sheet surface. In the thickness direction of the Ni—Co—Fe alloy layer, a Co concentration in the Ni—Co—Fe alloy layer is highest at a position which is on an outermost surface side of the Ni—Co—Fe alloy layer relative to a position where the Ni concentration is highest in the Ni—Co—Fe alloy layer, and which is between the outermost surface of the Ni—Co—Fe alloy layer and a depth of 100 nm from the outermost surface. In the Ni—Co—Fe alloy layer, an Ni-concentrated region in which the Ni concentration increases toward the outermost surface of the Ni—Co—Fe alloy layer is formed between the outermost surface of the Ni—Co—Fe alloy layer and the position where the Co concentration is highest.
    Type: Application
    Filed: November 29, 2021
    Publication date: December 21, 2023
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Yasuto GOTO, Kosuke KAWAMOTO, Yuta DAIROKUNO, Yuji KAJII, Koki SHIMADA
  • Publication number: 20230312393
    Abstract: There is provided a tempered glass having an extremely small thickness, high strength, and high safety as compared to the related art. A plate-shaped or sheet-shaped tempered glass includes: a compression stress layer on a surface thereof; and a tensile stress layer on an inner side in a thickness direction of the glass with respect to the compression stress layer, and includes at least partially a thin portion having a thickness t1 and being bendable, the thickness t1 is 105 ?m or less, a depth DOC of the compression stress layer is 9.0 ?m or less, and CS/DOC?95 is satisfied.
    Type: Application
    Filed: September 14, 2021
    Publication date: October 5, 2023
    Applicant: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Kosuke KAWAMOTO, Kiyotaka KINOSHITA, Yuta NAGANO, Hiroshi SASAKI
  • Publication number: 20230265011
    Abstract: A laminate according to an embodiment of the present invention includes at least one glass sheet and at least one resin layer, a relative dielectric constant of the glass sheet at 25° C. and a frequency of 2.45 GHz being 5 or less, and a dielectric loss tangent of the glass sheet at 25° C. and a frequency of 2.45 GHz being 0.003 or less.
    Type: Application
    Filed: August 19, 2021
    Publication date: August 24, 2023
    Applicant: Nippon Electric Glass Co., Ltd.
    Inventors: Masahiro HAYASHI, Kosuke KAWAMOTO
  • Publication number: 20230105625
    Abstract: A Ni-plated steel sheet according to one aspect of the present invention includes a base steel sheet and a Ni plating layer provided on a surface of the base steel sheet, the Ni plating layer has a Ni—Fe alloy layer formed on a surface of the base steel sheet, and a ratio of a Zn content to a Ni content in the Ni plating layer is 0.0005% to 0.10%. A manufacturing method of the Ni-plated steel sheet according to one aspect of the present invention has electroplating a base steel sheet using a Ni plating bath in which [Zn2+]/[Ni2+] is set to 0.0005% to 0.10% to obtain a material Ni-plated steel sheet, and annealing the material Ni-plated steel sheet.
    Type: Application
    Filed: March 1, 2021
    Publication date: April 6, 2023
    Inventors: Kosuke KAWAMOTO, Yasuto GOTO
  • Publication number: 20210313354
    Abstract: A display substrate of the present invention has a thermal shrinkage value of 10 ppm or less when the display substrate is increased in temperature from normal temperature to 500° C. at a temperature increase rate of 5° C./min, held at 500° C. for 1 hour, and then cooled to normal temperature at a temperature decrease rate of 5° C./min.
    Type: Application
    Filed: July 30, 2019
    Publication date: October 7, 2021
    Inventors: Atsushi MUSHIAKE, Takashi MURATA, Tetsuya MURATA, Hiroki KATAYAMA, Kosuke KAWAMOTO, Masahiro HAYASHI
  • Patent number: 10896650
    Abstract: A short-circuiting circuit short-circuits source bus lines such that a sum of numbers assigned to two source bus lines forming each set in each group is equal for all sets when it is assumed that K consecutive source bus lines (K is an even number greater than or equal to 4) form one group and numbers from 1 to K are assigned to the K source bus lines. For example, with four consecutive source bus lines forming one group, in each group, the short-circuiting circuit short-circuits the first and fourth source bus lines and short-circuits the second and third source bus lines.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: January 19, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kohji Saitoh, Kosuke Kawamoto, Kazuhisa Yoshimoto, Kazuya Kondoh, Masaki Uehata, Yasuki Mori
  • Patent number: 10810959
    Abstract: A display device includes a display panel having a display surface, display drivers arranged on and along a peripheral portion of the display panel, a wiring substrate located on a side of the display panel opposite from the display surface and having a long shape extending in an arrangement direction of the display drivers, first flexible wiring substrates electrically connecting the display drivers to the wiring substrate, a second flexible wiring substrate extending from the wiring substrate toward an outer periphery of the display panel, and a control board connected to an extended end portion of the second flexible wiring substrate and configured to control the display drivers and disposed not to overlap the display panel in a thickness direction of the display panel and having a dimension in the thickness direction of the display panel larger than that of the wiring substrate.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: October 20, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazuhisa Yoshimoto, Kohji Saitoh, Yasuki Mori, Masaki Uehata, Kazuya Kondoh, Kosuke Kawamoto
  • Publication number: 20200286437
    Abstract: A display device includes a display panel having a display surface display rivers arranged on and along a peripheral portion of the display panel, a wiring substrate located on a side of the display panel opposite from the display surface and having a long shape extending in an arrangement direction of the display drivers first flexible wiring substrates electrically connection the display drivers to the wiring substrate, a second flexible wiring substrate extending from the wiring substrate toward an outer periphery of the display panel and a control board connected to an extended end portion of the second flexible wiring substrate and configured to control the display drivers and disposed not to overlap the display panel in a thickness direction of the display panel and having a dimension in the thickness direction of the display panel larger than that of the wiring substrate.
    Type: Application
    Filed: June 28, 2018
    Publication date: September 10, 2020
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kazuhisa YOSHIMOTO, Kohji SAITOH, Yasuki MORI, Masaki UEHATA, Kazuya KONDOH, Kosuke KAWAMOTO
  • Patent number: 10564916
    Abstract: A liquid crystal display device includes a liquid crystal panel and a control unit. The control unit stores a plurality of setting values of a voltage applied to a counter electrode. The setting value is a value of the applied voltage at which variation in luminance appears at a portion located apart from a reference portion that is a region in the liquid crystal panel.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: February 18, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazuya Kondoh, Yasuki Mori, Masaki Uehata, Kohji Saitoh, Kazuhisa Yoshimoto, Kosuke Kawamoto
  • Publication number: 20190235336
    Abstract: [Problem] An object is to reduce crosstalk.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 1, 2019
    Inventors: MASAKI UEHATA, KOHJI SAITOH, YASUKI MORI, KAZUYA KONDOH, KAZUHISA YOSHIMOTO, KOSUKE KAWAMOTO
  • Publication number: 20190164512
    Abstract: There is provided a source driver (video signal line drive circuit) using a charge sharing system that achieves lower power consumption than a conventional case. A short-circuiting circuit short-circuits source bus lines such that a sum of numbers assigned to two source bus lines forming each set in each group is equal for all sets when it is assumed that K consecutive source bus lines (K is an even number greater than or equal to 4) form one group and numbers from 1 to K are assigned to the K source bus lines. For example, with four consecutive source bus lines forming one group, in each group, the short-circuiting circuit short-circuits the first and fourth source bus lines and short-circuits the second and third source bus lines.
    Type: Application
    Filed: May 25, 2017
    Publication date: May 30, 2019
    Inventors: KOHJI SAITOH, KOSUKE KAWAMOTO, KAZUHISA YOSHIMOTO, KAZUYA KONDOH, MASAKI UEHATA, YASUKI MORI
  • Publication number: 20190108805
    Abstract: A liquid crystal display device includes a liquid crystal panel and a control unit. The control unit stores a plurality of setting values of a voltage applied to a counter electrode. The setting value is a value of the applied voltage at which variation in luminance appears at a portion located apart from a reference portion that is a region in the liquid crystal panel.
    Type: Application
    Filed: October 10, 2018
    Publication date: April 11, 2019
    Inventors: KAZUYA KONDOH, YASUKI MORI, MASAKI UEHATA, KOHJI SAITOH, KAZUHISA YOSHIMOTO, KOSUKE KAWAMOTO
  • Patent number: 10173923
    Abstract: A tempered glass has a compressive stress layer in a surface thereof, includes as a glass composition, in terms of mass %, 50 to 80% of SiO2, 10 to 30% of Al2O3, 0 to 6% of B2O3, 0 to 2% of Li2O, and 5 to 25% of Na2O, and is substantially free of As2O3, Sb2O3, PbO, and F.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: January 8, 2019
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Kosuke Kawamoto, Takashi Murata, Takako Tojyo
  • Patent number: 9919949
    Abstract: To devise a tempered glass and a glass to be tempered each of which is lowered in density and viscosity at high temperature, hardly deteriorates a KNO3 molten salt, and is excellent in thermal shock resistance. The tempered glass having a compression stress layer in a surface thereof, including as a glass composition, in terms of mol %, 50 to 80% of SiO2, 5 to 30% of Al2O3, 0 to 2% of Li2O, 5 to 25% of Na2O, and 0 to 5% of K2O, and being substantially free of As2O3, Sb2O3, PbO, and F.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: March 20, 2018
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Kosuke Kawamoto, Ken Choju