Patents by Inventor Masahiro Watanabe

Masahiro Watanabe 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: 20190237997
    Abstract: The purpose of the present invention is to provide a power flow monitoring device for a power system, a power system stabilization device, and a power flow monitoring method for a power system, which are highly reliable and accurate.
    Type: Application
    Filed: September 13, 2017
    Publication date: August 1, 2019
    Inventors: Yuki TSUJII, Kenedward KAWAKITA, Masatoshi KUMAGAI, Masahiro WATANABE, Akira KIKUCHI
  • Publication number: 20190235452
    Abstract: Provided is a power system status estimation device capable of increasing the likelihood that status estimation calculations converge. Thus, a power system status estimation device 1 is equipped with: a measured value selection unit 102 for selecting a prescribed combination of measured values using which it is predicted that the power system status estimation calculations will converge, from among the measured values from each sensor provided in the power system; and a status estimation calculation unit 101 for estimating the status of the power system on the basis of the prescribed combination of measured values selected by the measured value selection unit and the system model for the power system.
    Type: Application
    Filed: October 20, 2017
    Publication date: August 1, 2019
    Inventors: Masahiro WATANABE, Yuki TSUJII, KenEdward KAWAKITA, Masatoshi KUMAGAI
  • Patent number: 10361560
    Abstract: A power system control instruction device performing a control instruction to the control device that controls the power system on the basis of a measured value transmitted from a sensor measuring a state value of the power system and a method for performing such a control instruction are provided. The device obtains a centralized control amount using a measured value of the sensor such that a system voltage meets a predetermined control purpose, and creates a distributed control model using the measured value and the centralized control amount. The device then determines whether or not a voltage deviation from the voltage appropriate range occurs when the control device performs control on the basis of the distributed control model, and re-creates the distributed control model when the voltage deviation occurs, and transmits the distributed control model that is re-created to the control device.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: July 23, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Shota Omi, Masatoshi Kumagai, Kenichiro Yamane, Masahiro Watanabe
  • 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: 20190185986
    Abstract: There have been cases where transistors formed using oxide semiconductors are inferior in reliability to transistors formed using amorphous silicon. Thus, in the present invention, a semiconductor device including a highly reliable transistor formed using an oxide semiconductor is manufactured. An oxide semiconductor film is deposited by a sputtering method, using a sputtering target including an oxide semiconductor having crystallinity, and in which the direction of the c-axis of a crystal is parallel to a normal vector of the top surface of the oxide semiconductor. The target is formed by mixing raw materials so that its composition ratio can obtain a crystal structure.
    Type: Application
    Filed: February 26, 2019
    Publication date: June 20, 2019
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei YAMAZAKI, Tetsunori MARUYAMA, Yuki IMOTO, Hitomi SATO, Masahiro WATANABE, Mitsuo MASHIYAMA, Kenichi OKAZAKI, Motoki NAKASHIMA, Takashi SHIMAZU
  • Publication number: 20190150331
    Abstract: An electromagnetic wave shield film in which peeling off between a metal thin film and an adhesive layer is prevented and a printed wiring board employing the electromagnetic wave shield are provided. An electromagnetic wave shield film is formed by laminating at least a metal thin film and an adhesive layer in order, and the water vapor permeability of the electromagnetic wave shield film according to JISK7129 is 0.5 g/m2 per 24 hours or higher at a temperature of 80 degrees centigrade, a moisture of 95% RH, and a pressure difference of 1 atm.
    Type: Application
    Filed: December 28, 2018
    Publication date: May 16, 2019
    Inventor: Masahiro WATANABE
  • Patent number: 10287409
    Abstract: The present invention provides an anion exchange resin capable of producing an electrolyte membrane for a fuel cell, a binder for forming an electrode catalyst layer and a battery electrode catalyst layer. The anion exchange resin of the present invention has a hydrophobic unit, a hydrophilic unit and divalent fluorine-containing groups. The hydrophobic unit has divalent hydrophobic groups composed of one aromatic ring or a plurality of aromatic rings that are repeated via carbon-carbon bond. The hydrophilic unit has divalent hydrophilic groups composed of one aromatic ring or a plurality of aromatic rings, at least one of which has an anion exchange group, that are repeated via carbon-carbon bond. The divalent fluorine-containing groups have a specific structure and are bonded via carbon-carbon bond to the hydrophobic unit and/or the hydrophilic unit and/or a moiety other than these units.
    Type: Grant
    Filed: August 22, 2015
    Date of Patent: May 14, 2019
    Assignees: TAKAHATA PRECISION JAPAN CO., LTD., UNIVERSITY OF YAMANASHI
    Inventors: Manai Shimada, Naoki Yokota, Kenji Miyatake, Masahiro Watanabe, Junpei Miyake, Hideaki Ono, Eriko Nishino, Koichiro Asazawa
  • Patent number: 10267745
    Abstract: The disclosed device, which, using an electron microscope or the like, minutely observes defects detected by an optical appearance-inspecting device or an optical defect-inspecting device, can reliably insert a defect to be observed into the field of an electron microscope or the like, and can be a device of smaller scale. The electron microscope, which observes defects detected by an optical appearance-inspecting device or an optical defect-inspecting device, has a configuration incorporating an optimal microscope that re-detects defects, and a spatial filter and a distribution polarization element are inserted at the pupil plane when making dark-field observations using this optical microscope.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: April 23, 2019
    Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Yuko Otani, Takehiro Tachizaki, Masahiro Watanabe, Shunichi Matsumoto
  • Publication number: 20190110706
    Abstract: An excitement propagation visualization apparatus detects an excitement propagation wave front for each analysis time on the basis of excitement propagation data indicative of a potential generated by excitement propagation. Next, the excitement propagation visualization apparatus detects for each analysis time an intersection of a straight line passing through a first point inside a heart and a second point outside the heart and the excitement propagation wave front. Furthermore, the excitement propagation visualization apparatus generates for each analysis time a display object associated with the intersection of the straight line and the excitement propagation wave front. In addition, the excitement propagation visualization apparatus draws the display object generated for each analysis time at a position of the associated intersection in a drawing area indicative of an analysis space.
    Type: Application
    Filed: October 11, 2018
    Publication date: April 18, 2019
    Applicants: FUJITSU LIMITED, The University of Tokyo
    Inventors: Masahiro WATANABE, Toshiaki HISADA, Seiryo SUGIURA, Jun-ichi OKADA, Takumi WASHIO
  • Patent number: 10236083
    Abstract: A visualization apparatus includes a memory unit and a computing unit. The memory unit stores a circulation model in which a vascular network, of an organ, having a diameter equal to or smaller than a predetermined value is defined on a two-dimensional plane, and a simulation result of a blood flow in the vascular network of the circulation model. The computing unit transforms the circulation model into a three-dimensional structure including the vascular network located on a cylindrical surface of a cylinder, and displays the simulation result on the three-dimensional structure.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: March 19, 2019
    Assignees: FUJITSU LIMITED, THE UNIVERSITY OF TOKYO
    Inventors: Masahiro Watanabe, Yoshimasa Kadooka, Toshiaki Hisada, Seiryo Sugiura, Takumi Washio, Jun-Ichi Okada
  • Patent number: 10223824
    Abstract: An information processing apparatus is disclosed. A processor selects cross-section shape information and texture information corresponding to a view direction from a memory. The memory stores the cross-section shape information representing a cross-section shape and the texture information representing a texture of a cross-section for each of cross-sections in a vicinity of a line segment pertinent to a phenomenon portion. The processor generates visualization data used to visualize the line segment in a three dimensional image by using the cross-section shape information and the texture information being selected and displays the line segment based on the visualization data on a display part.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: March 5, 2019
    Assignee: FUJITSU LIMITED
    Inventor: Masahiro Watanabe
  • Publication number: 20190063358
    Abstract: A fuel injection control device has a valve opening control portion which opens a control valve by electrically charging a piezoelectric element, and a valve closing portion which closes the control valve. The valve opening control portion includes a first rising control portion, a pause control portion and a second control portion. The first rising control portion increases a charge amount of the piezoelectric element during a first rising period. The pause control portion pauses an increase in the charge amount of the piezoelectric element during a pause period after the first rising period. The second rising control portion increases the charging amount of the piezoelectric elements again during a second rising period after the pause period. The pause period includes a period of immediately before the control valve is opened.
    Type: Application
    Filed: August 13, 2018
    Publication date: February 28, 2019
    Inventors: Masahiro WATANABE, Daiji UEDA, Hiroki TANADA
  • Patent number: 10217796
    Abstract: Stable electrical characteristics of a transistor including an oxide semiconductor layer are achieved. A highly reliable semiconductor device including the transistor is provided. The semiconductor device includes a multilayer film formed of an oxide layer and an oxide semiconductor layer, a gate insulating film in contact with the oxide layer, and a gate electrode overlapping with the multilayer film with the gate insulating film interposed therebetween. The oxide layer contains a common element to the oxide semiconductor layer and has a large energy gap than the oxide semiconductor layer. The composition between the oxide layer and the oxide semiconductor layer gradually changes.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: February 26, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kenichi Okazaki, Mitsuo Mashiyama, Takuya Handa, Masahiro Watanabe, Hajime Tokunaga
  • Patent number: 10209313
    Abstract: An accumulator and state of charge evaluation method for preparing, during charging and discharging, models for each of deterioration degrees, each representing a relationship between terminal voltage, current and state of charge, for selecting respective models for the times during charging and discharging in accordance with a total charging/discharging amount (Ah), a deterioration degree or an elapsed time of an operation of the accumulator, for further estimating state of charge from current accumulation, and for determining a final state of charge from estimated states of charge including a present state of charge estimated from the models for the times during charging and discharging of the accumulator, while using a time or a total charging/discharging amount (Ah) from a time of full-charging by equal charging of the accumulator up to present time to determine the final state of charge from the plurality of states of charge.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: February 19, 2019
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Keiko Abe, Yasuhiro Kobayashi, Masahiro Watanabe, Hisaaki Takabayashi, Yoshikazu Hirose
  • Patent number: 10211777
    Abstract: The output of a photovoltaic power generator is estimated by estimating a solar radiation amount at a point different from solar radiation measurement points and determining an estimation error amount from solar radiation values measured at limited points. A photovoltaic power generator output estimation method estimates an output of a photovoltaic power generator based on a measured solar radiation value.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: February 19, 2019
    Assignees: Hitachi, Ltd., Tohoku Electric Power Co., Inc., Tohoku Electric Manufacturing Co., Ltd.
    Inventors: Masahiro Watanabe, Kenichiro Yamane, Takuya Matsumoto, Masatoshi Kumagai, Tsukasa Oonishi, Ryo Egashira, Katsuhiro Matsuda, Jun Murakoshi, Tomoya Sato
  • Publication number: 20190047131
    Abstract: An electric working machine in one aspect of the present disclosure includes a motor, a controller, and a setter. The controller is configured to change a rotational state of the motor, in response to an establishment of a condition for change after the motor is initiated, from a low speed rotation to a high speed rotation. The setter is configured to set, based on a situation in the motor in the low speed rotation, a control variable of the motor in the high speed rotation and/or the condition for change.
    Type: Application
    Filed: August 2, 2018
    Publication date: February 14, 2019
    Applicant: MAKITA CORPORATION
    Inventors: Yoshitaka ICHIKAWA, Goshi ISHIKAWA, Shinichi HIRA, Yasuhito KAWAI, Masahiro WATANABE, Takuya KUSAKAWA
  • Publication number: 20190047132
    Abstract: An electric working machine in one aspect of the present disclosure includes a motor, a setter, and a controller. The setter is configured to modifiably set a change characteristic in changing a rotational state of the motor from a low speed rotation to a high speed rotation. The high speed rotation is greater than the low speed rotation in rotational frequency of the motor.
    Type: Application
    Filed: August 7, 2018
    Publication date: February 14, 2019
    Applicant: MAKITA CORPORATION
    Inventors: Ryunosuke Kumagai, Masahiro Watanabe, Jiro Suzuki, Kosuke Ito
  • Patent number: 10205008
    Abstract: Provided is a semiconductor device with favorable electrical characteristics. Provided is a semiconductor device with stable electrical characteristics. Provided is a manufacturing method of a semiconductor device with a high yield. The manufacturing method includes a first step of forming an insulating film over a substrate, a second step of transferring the substrate in an atmospheric atmosphere, a third step of heating the insulating film, and a fourth step of forming a metal oxide film. The third step and the fourth step are successively performed in an atmosphere where water vapor partial pressure is lower than water vapor partial pressure in the atmospheric air.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: February 12, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Toshimitsu Obonai, Hironobu Takahashi, Yasuharu Hosaka, Masahiro Watanabe, Takuya Handa, Yukinori Shima, Takashi Hamochi
  • Publication number: 20190035161
    Abstract: A designation device includes a storage that stores therein a three-dimensional model of an organ, and a processor coupled to the storage. The processor executes a process including: first acquiring designations of a plurality of planes of the three-dimensional model of the organ; second acquiring designations of a specific number of pieces of point information indicating an infarct site of the organ for any one or all of the planes; determining the infarct site of the organ that is interposed between the planes on the basis of the pieces of point information; and outputting an image reproducing determination result of the infarct site of the organ at the determining using the three-dimensional model.
    Type: Application
    Filed: July 23, 2018
    Publication date: January 31, 2019
    Applicants: FUJITSU LIMITED, The University of Tokyo
    Inventors: Masahiro Watanabe, Machiko Nakagawa, Toshiaki Hisada, Seiryo Sugiura, Takumi Washio, Jun-ichi Okada