Patents by Inventor Kouhei Yamada
Kouhei Yamada 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).
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Patent number: 11802885Abstract: A sensor processing system includes a plurality of reduction circuits. The plurality of reduction circuits correspond to a plurality of sensors on a one-to-one basis. Each of the plurality of reduction circuits is electrically connected to an output terminal of a corresponding one of the plurality of sensors to reduce a low-frequency component of a sensor output of the corresponding one of the plurality of sensors.Type: GrantFiled: April 29, 2020Date of Patent: October 31, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Kouhei Yamada
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Publication number: 20220212286Abstract: A welding method, which subjects a surface to be built-up of an elongated workpiece to a build-up welding process along a longitudinal direction of the workpiece, includes a step for forming a build-up layer on the surface to be built-up by supplying a filler metal to the surface to be built-up along the longitudinal direction and by applying a laser beam thereto to melt the filler metal. A refrigerant is supplied to the surface to be built-up of the workpiece, during the step for forming the build-up layer.Type: ApplicationFiled: December 29, 2021Publication date: July 7, 2022Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Yasutaka KAWADA, Yoshinobu MAKINO, Kouhei YAMADA, Takehisa HINO
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Publication number: 20220212285Abstract: A welding method for subjecting a surface to be built-up of an elongated workpiece to a build-up welding process along a longitudinal direction of the workpiece, the welding method includes a step of forming a build-up layer on the surface to be built-up by supplying a filler metal to the surface to be built-up along the longitudinal direction and by applying a laser beam thereto to melt the filler metal. In the step of forming the build-up layer, information on a dimension of a molten pool formed by the filler metal and the workpiece molten by the laser beam is obtained, and an output of the laser beam is controlled based on the information.Type: ApplicationFiled: December 29, 2021Publication date: July 7, 2022Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Yasutaka KAWADA, Kouhei YAMADA, Yoshinobu MAKINO
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Publication number: 20220022384Abstract: A utility work device includes a main body section supported by a support and a working section supported by the main body section to perform a work on an object. The main body section is movable in a horizontal direction and a perpendicular direction.Type: ApplicationFiled: December 23, 2019Publication date: January 27, 2022Inventors: Kouhei YAMADA, Keisuke IGARASHI, Kazuyuki TASHIRO
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Publication number: 20200348328Abstract: A sensor processing system includes a plurality of reduction circuits. The plurality of reduction circuits correspond to a plurality of sensors on a one-to-one basis. Each of the plurality of reduction circuits is electrically connected to an output terminal of a corresponding one of the plurality of sensors to reduce a low-frequency component of a sensor output of the corresponding one of the plurality of sensors.Type: ApplicationFiled: April 29, 2020Publication date: November 5, 2020Inventor: Kouhei YAMADA
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Patent number: 10309003Abstract: The honeycomb structure includes a pillar-shaped honeycomb structure body having porous partition walls 1 defining a plurality of cells and a circumferential wall, and a pair of electrode members disposed on the side of a side surface of the honeycomb structure body. The pair of electrode members contain metal silicon and boron, at least a part of the electrode member is made of a composite material including, as a main component, silicon containing 100 to 10000 ppm of boron in silicon. In the composite material which is comprised the electrode member, a volume ratio of the silicon containing 100 to 10000 ppm of the boron in the composite material is 70 volume % or more. An electric resistivity of the electrode member made of the composite material is from 20 ??cm to 0.1 ?cm.Type: GrantFiled: March 9, 2017Date of Patent: June 4, 2019Assignee: NGK Insulators, Ltd.Inventors: Shiho Matsui, Takayuki Inoue, Kouhei Yamada
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Patent number: 10231920Abstract: A skin cleansing composition comprising the following components (A), (B), (C), (D), (E), (F), and (G): (A) from 0.5 to 20% by mass of an oil agent having a viscosity at 30° C. of more than 30 mPa·s, (B) from 0.5 to 20% by mass of an oil agent having a viscosity at 30° C. of 30 mPa·s or less, (C) from 1 to 15% by mass of a nonionic surfactant having an HLB of 10 or more and having a residue obtained by removing a hydrogen atom from at least one hydroxyl group in sugar, reducing sugar, or polyglycerin as a hydrophilic group, (D) from 1 to 15% by mass of a nonionic surfactant having an HLB of 8 or less, (E) from 10 to 60% by mass of a polyhydric alcohol, (F) from 10 to 50% by mass of water, and (G) from 4 to 45% by mass of a nonionic surfactant having an HLB of 10 or more and having a polyoxyethylene chain as a hydrophilic group, wherein the mass ratio of the component (A) to the components (B), (A)/(B), is from 0.Type: GrantFiled: June 29, 2015Date of Patent: March 19, 2019Assignee: KAO CORPORATIONInventors: Kouhei Yamada, Hitoshi Tajima
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Patent number: 9943709Abstract: Provided is a skin cleansing composition comprising the following components (A), (B), (C), (D), and (E): (A) 0.1 to 25 mass % of an ether oil which is in a liquid state at 25° C., (B) 0.003 to 1 mass % of a water-soluble polymer comprising acrylic acid or methacrylic acid as a constitutional unit, (C) 1 to 30 mass % of a hydrocarbon oil having a viscosity of 15 mPa·s or lower at 30° C., (D) 60 to 95 mass % of water, and (E) 0.49 mass % or less of a nonionic surfactant having an HLB of larger than 9, wherein the mass ratio of the component (B) to the component (A), (B)/(A) is from 0.0001 to 0.1, and the mass ratio between the component (A) and the component (C), (A)/((A)+(C)) is from 0.05 to 0.9.Type: GrantFiled: April 28, 2014Date of Patent: April 17, 2018Assignee: KAO CORPORATIONInventors: Kouhei Yamada, Atsushi Tomokuni, Koji Tanaka, Daisuke Sawa, Takashi Kawai
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Publication number: 20170283931Abstract: The honeycomb structure includes a pillar-shaped honeycomb structure body having porous partition walls 1 defining a plurality of cells and a circumferential wall, and a pair of electrode members disposed on the side of a side surface of the honeycomb structure body. The pair of electrode members contain metal silicon and boron, at least a part of the electrode member is made of a composite material including, as a main component, silicon containing 100 to 10000 ppm of boron in silicon. In the composite material which is comprised the electrode member, a volume ratio of the silicon containing 100 to 10000 ppm of the boron in the composite material is 70 volume % or more. An electric resistivity of the electrode member made of the composite material is from 20 ??cm to 0.1 ?cm.Type: ApplicationFiled: March 9, 2017Publication date: October 5, 2017Applicant: NGK INSULATORS, LTD.Inventors: Shiho MATSUI, Takayuki INOUE, Kouhei YAMADA
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Patent number: 9778291Abstract: A selector circuit selects either a class upper-limit voltage or a class lower-limit voltage as a reference voltage of a comparator. A control logic controls the selector circuit, and generates a count-up signal or a count-down signal in accordance with the output of the comparator. An up/down counter counts up upon reception of the count-up signal from the control logic, and counts down upon reception of the count-down signal. A digital-analog converter outputs the class upper-limit voltage and the class lower-limit voltage in accordance with a digital value that is outputted by the up/down counter. A timer circuit is configured to be reset by the count-up signal from the control logic to the up/down counter.Type: GrantFiled: September 14, 2012Date of Patent: October 3, 2017Assignee: FUJI ELECTRIC CO., LTD.Inventor: Kouhei Yamada
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Publication number: 20170151159Abstract: A skin cleansing composition comprising the following components (A), (B), (C), (D), (E), (F), and (G): (A) from 0.5 to 20% by mass of an oil agent having a viscosity at 30° C. of more than 30 mPa·s, (B) from 0.5 to 20% by mass of an oil agent having a viscosity at 30° C. of 30 mPa·s or less, (C) from 1 to 15% by mass of a nonionic surfactant having an HLB of 10 or more and having a residue obtained by removing a hydrogen atom from at least one hydroxyl group in sugar, reducing sugar, or polyglycerin as a hydrophilic group, (D) from 1 to 15% by mass of a nonionic surfactant having an HLB of 8 or less, (E) from 10 to 60% by mass of a polyhydric alcohol, (F) from 10 to 50% by mass of water, and (G) from 4 to 45% by mass of a nonionic surfactant having an HLB of 10 or more and having a polyoxyethylene chain as a hydrophilic group, wherein the mass ratio of the component (A) to the components (B), (A)/(B), is from 0.Type: ApplicationFiled: June 29, 2015Publication date: June 1, 2017Applicant: KAO CORPORATIONInventors: Kouhei YAMADA, Hitoshi TAJIMA
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Patent number: 9499790Abstract: The present invention relates to a composition for promoting differentiation of pluripotent stem cells into cardiac muscle cells, and a method for inducing differentiation of pluripotent stem cells into cardiac muscle cells and a method for preparing cardiac muscle cells.Type: GrantFiled: January 14, 2014Date of Patent: November 22, 2016Assignee: KYOTO UNIVERSITYInventors: Norio Nakatsuji, Motonari Uesugi, Kouhei Yamada, Itsunari Minami, Tomomi Otsuji, Shinya Otsuka
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Publication number: 20160106655Abstract: Provided is a skin cleansing composition comprising the following components (A), (B), and (C): (A) from 0.5 to 40 mass % of an ether oil in a liquid state at 25° C., (B) from 0.01 to 5 mass % of a nonionic water-soluble polymer comprising cellulose as a constitutional unit selected from the group consisting of methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, and hydroxypropylmethylcellulose, and (C) water, and 1 mass % or less of a nonionic surfactant, wherein the mass ratio of the component (B) to the component (A), (B)/(A) is from 0.001 to 5.Type: ApplicationFiled: April 28, 2014Publication date: April 21, 2016Applicant: KAO CORPORATIONInventors: Kouhei YAMADA, Atsushi TOMOKUNI
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Publication number: 20160101036Abstract: Provided is a skin cleansing composition comprising the following components (A), (B), (C), (D), and (E): (A) 0.1 to 25 mass % of an ether oil which is in a liquid state at 25° C., (B) 0.003 to 1 mass % of a water-soluble polymer comprising acrylic acid or methacrylic acid as a constitutional unit, (C) 1 to 30 mass % of a hydrocarbon oil having a viscosity of 15 mPa·s or lower at 30° C., (D) 60 to 95 mass % of water, and (E) 0.49 mass % or less of a nonionic surfactant having an HLB of larger than 9, wherein the mass ratio of the component (B) to the component (A), (B)/(A) is from 0.0001 to 0.1, and the mass ratio between the component (A) and the component (C), (A)/((A)+(C)) is from 0.05 to 0.9.Type: ApplicationFiled: April 28, 2014Publication date: April 14, 2016Applicant: KAO CORPORATIONInventors: Kouhei YAMADA, Atsushi TOMOKUNI, Koji TANAKA, Daisuke SAWA, Takashi KAWAI
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Publication number: 20150353749Abstract: The present invention relates to a pigment ink composition that can fulfill excellent print stability, and performances and drying performance of printed matters. The ink composition comprises: at least a pigment; an organic solvent; and two or more kinds of binder resins having different weight average molecular weights (Mw), wherein, when a binder resin having lowest weight average molecular weight (Mw) is marked as ?, and a binder resin having higher weight average molecular weight (Mw) than that of the binder resin ? and meeting formula (3) is marked as ? among the two or more kinds of binder resins to be used, the ink composition meets formulae (1) and (2): Formula (1): Mw??Mw??10,000, Formula (2): 1,000<Mw?<30,000, and Formula (3): 20,000<Mw?<100,000, wherein Mw? represents the weight average molecular weight of the binder resin ?, and Mw? represents the weight average molecular weight of the binder resin ?.Type: ApplicationFiled: August 21, 2015Publication date: December 10, 2015Applicant: TOYO INK SC HOLDINGS CO., LTD.Inventors: Atsushi YODA, Seiji Aida, Ken Yamasaki, Daisuke Fujiwara, Kouhei Yamada, Kazunori Shigemori, Mitsuo Umezawa
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Patent number: 9124254Abstract: The transient response of an output voltage to a load fluctuation is improved, in a switching power source that carries out a PWM control. In a DC-DC converter wherein a switching element of an output stage is controlled by a drive signal, whose pulse width is set at a minimum value, output from a PWM signal generating circuit based on an output voltage output from an error amplifier in accordance with the difference between a feedback voltage in accordance with an output voltage of the output stage and a reference voltage, there is provided a minimum pulse width detector circuit that supplies a current to a phase compensation capacitor when the pulse width of the drive signal is at the minimum value, thus preventing the output voltage from dropping below a value corresponding to the minimum value when the load fluctuates, and improving transient response characteristics of the output voltage.Type: GrantFiled: April 25, 2012Date of Patent: September 1, 2015Assignee: FUJI ELECTRIC CO., LTD.Inventor: Kouhei Yamada
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Patent number: 8928294Abstract: A hysteresis control step-up switching power supply includes a switching element. Current flowing through the switching element does not continue to increase indefinitely. The switching element is turned off when a detected value of an output voltage increases to a reference voltage, or when the output of a current detector circuit that detects that a current flowing through the switching element increases to a reference current value.Type: GrantFiled: March 15, 2013Date of Patent: January 6, 2015Assignee: Fuji Electric Co., Ltd.Inventor: Kouhei Yamada
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Publication number: 20140347034Abstract: A selector circuit selects either a class upper-limit voltage or a class lower-limit voltage as a reference voltage of a comparator. A control logic controls the selector circuit, and generates a count-up signal or a count-down signal in accordance with the output of the comparator. An up/down counter counts up upon reception of the count-up signal from the control logic, and counts down upon reception of the count-down signal. A digital-analog converter outputs the class upper-limit voltage and the class lower-limit voltage in accordance with a digital value that is outputted by the up/down counter. A timer circuit is configured to be reset by the count-up signal from the control logic to the up/down counter.Type: ApplicationFiled: September 14, 2012Publication date: November 27, 2014Applicant: FUJI ELECTRIC CO., LTD.Inventor: Kouhei Yamada
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Patent number: 8878508Abstract: A control circuit of a DC-DC converter that has a switching element, including an error amplifier that amplifies a difference between a reference voltage and a feedback voltage corresponding to an output voltage of the DC-DC converter, a voltage reduction comparator that outputs an interrupt signal when the feedback voltage is lower than a voltage reduction threshold that has a value lower than that of the reference voltage, and a pulse-width modulation (PWM) signal generator circuit. The PWM signal generator circuit generates a PWM signal of a predetermined frequency based on the voltage difference when no interrupt signal is generated, or otherwise generates a switch drive signal to activate the switching element for a first period of time corresponding to the difference output by the error amplifier, and to deactivate the switching element for a second period of time after the first period of time has elapsed.Type: GrantFiled: March 2, 2012Date of Patent: November 4, 2014Assignee: Fuji Electric Co., Ltd.Inventor: Kouhei Yamada
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Patent number: 8823351Abstract: A control system of a DC to DC converter skips switching pulses according to the output of an overvoltage protection circuit. The overvoltage protection circuit includes an overvoltage threshold voltage control section that lowers an overvoltage threshold voltage when the pulse width has a minimum valve. The control system both improves the output voltage accuracy of the DC to DC converter under a light load and promotes a quick return to normal operation after an overvoltage protection operation under a heavy load.Type: GrantFiled: February 22, 2012Date of Patent: September 2, 2014Assignee: Fuji Electric Co., Ltd.Inventor: Kouhei Yamada