Patents by Inventor Hayato FUJITA

Hayato FUJITA 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: 20220247255
    Abstract: An object of the present invention is to provide a sealing member that provides high sealability in a coolant flow path. A rotating electrical machine includes a stator core around which a winding is wound, a stator frame that supports the stator core, a housing that is disposed outside the stator frame and forms a flow path space with the stator frame, and a sealing member that is disposed between the stator frame and the housing. The housing includes a mounting portion on which the sealing member is mounted. The sealing member includes a base portion that is in contact with the housing and the stator frame, and an attachment portion that protrudes from the base portion and is inserted to the mounting portion of the housing.
    Type: Application
    Filed: July 10, 2020
    Publication date: August 4, 2022
    Applicant: HITACHI ASTEMO, LTD.
    Inventors: Hayato FUJITA, Yuichiro BABA, Ryoji KOBAYASHI, Toshiki TAKAHASHI, Takuya MIYAGI, Kenji NAKAYAMA
  • Publication number: 20220232140
    Abstract: A control device includes a first control unit, including a first controller, to operate in a first operation mode and be powered off in a second operation mode in which a power consumption is lower than in the first operation mode; a second control unit, including a second controller, to operate in the first operation mode and the second operation mode; and a power supply controller to control power supply to the first control unit and the second control unit. The second control unit includes a communication interface to perform communication with the first control unit and stop operating in the second operation mode, an abnormality detector to detect an abnormality of the second controller, and a system controller to cause the communication interface to start an operation and the power supply controller to activate the first control unit, based on detection of the abnormality in the second operation mode.
    Type: Application
    Filed: January 17, 2022
    Publication date: July 21, 2022
    Applicant: Ricoh Company, Ltd.
    Inventor: Hayato Fujita
  • Patent number: 11384774
    Abstract: A rotor includes: a hub; and a plurality of blades disposed on the hub. Each of the plurality of blades includes a suction surface, a pressure surface, a leading edge, a trailing edge, a tip-side edge, and a hub-side edge. In a cross-section of each blade at a given chord position between the leading edge and the trailing edge, an angle of at least one of the suction surface or the pressure surface with respect to a blade height direction of the blade increases in a direction from the hub-side edge to the tip-side edge over a region from the hub-side edge to the tip-side edge, in at least a range from the leading edge to a chord position away from the leading edge toward the trailing edge.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: July 12, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Yoshihiro Hayashi, Yutaka Fujita, Nobuhito Oka, Koichi Takahashi, Hayato Nishi
  • Patent number: 11378696
    Abstract: A local error estimation unit (515) of a local error generation device (500) estimates and generates local errors (?T, ?I) based on global errors (?o, ?t, ?b) included in positioning augmentation information (81) produced in an electronic reference point network (120) and observed data (61) generated by receivers on electronic reference points (611, 612) not belonging to the electronic reference point network (120). The local errors (?T, ?I) are errors that influence positioning accuracy in a region where the electronic reference points (611, 612) exist and that depend on the region where the electronic reference points (611, 612) exist.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: July 5, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Seigo Fujita, Masakazu Miya, Yuki Sato, Hayato Shiono
  • Publication number: 20220205448
    Abstract: A suction port and a blow-out port are formed in a casing. A fan is provided in the casing. Under a test condition that a blower is provided in such a way that a reference position of the blow-out port is a position that is separated by 2000 mm upward from a floor, an airflow adjusting mechanism adjusts, in a wide mode, a flow of air blown out from the blow-out port so that an average airflow speed in a first range and an average airflow speed in a second range are approximately equal to each other and so that a ratio of an average airflow speed in a third range to the average airflow speed in the first range is less than 1.5.
    Type: Application
    Filed: March 16, 2022
    Publication date: June 30, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hiroki FUJITA, Masafumi UDA, Sachiko MATSUMOTO, Hayato NUNO, Kei TAKENAKA
  • Publication number: 20220109166
    Abstract: A battery cell that has a supply edge to which an electrolyte solution is supplied and a discharge edge from which the electrolyte solution is discharged has an introduction port that is in connection with the supply edge and a discharge port that is in connection with the discharge edge, and includes a plurality of meandering flow paths. Each of the meandering flow paths has an introduction-side section extending from the introduction port toward a discharge edge side, a turn-back section that is turned back from an end portion on the discharge edge side of the introduction-side section toward a supply edge side, and a discharge-side section reaching the discharge port from an end portion on the supply edge side of the turn-back section. The turn-back section has at least one of: an inclined portion extending in an oblique direction, and a stepped portion formed in a step shape.
    Type: Application
    Filed: January 24, 2020
    Publication date: April 7, 2022
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hayato FUJITA, Masahiro KUWABARA
  • Publication number: 20220093942
    Abstract: A battery cell that has a supply edge to which an electrolyte solution is supplied and a discharge edge from which the electrolyte solution is discharged has an introduction port that connects with the supply edge and a discharge port that connects with the discharge edge, and includes a plurality of meandering flow paths each of which is serially formed from the introduction port to the discharge port, the plurality of meandering flow paths being arranged in parallel in a widthwise direction. Each of the meandering flow paths has an introduction-side section extending from the introduction port toward a discharge edge side, a turn-back section that is turned back from an end portion on the discharge edge side of the introduction-side section toward a supply edge side, and a discharge-side section reaching the discharge port from an end portion on the supply edge side of the turn-back section.
    Type: Application
    Filed: January 24, 2020
    Publication date: March 24, 2022
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hayato FUJITA, Masahiro KUWABARA
  • Publication number: 20220037940
    Abstract: An object of the present invention is to reduce stress caused by press-fitting of a shaft on an outer edge portion side of a rotor. A rotor for a rotating electric machine includes a shaft and a rotor iron core, the shaft coupled to the rotor iron core. The rotor iron core includes: an outer edge portion housing a magnet; an inner edge portion coupled to the shaft; and a rib portion having a lightening portion that is formed inside between the outer edge portion and the inner edge portion. The rib portion includes: a through-hole forming portion connected to the outer edge portion and having a through-hole inside; and a bridge portion connecting the through-hole forming portion and the inner edge portion. The bridge portion includes: a second bridge portion connected to the through-hole forming portion and protruding outward; and a first bridge portion having one end connected to the inner edge portion and another end connected to the second bridge portion.
    Type: Application
    Filed: December 13, 2019
    Publication date: February 3, 2022
    Applicant: Hitachi Astemo, Ltd.
    Inventors: Takuya MIYAGI, Toshiki TAKAHASHI, Hayato FUJITA, Yuichiro BABA, Kenji NAKAYAMA
  • Publication number: 20200403262
    Abstract: A cell stack including; a stacked body including a plurality of cell frames each having a bipolar plate whose outer periphery is supported by a frame member; and a pair of end plates that tighten the stacked body from both sides of a stacking direction thereof, wherein an area S [cm2] of each cell frame as viewed from the stacking direction of the stacked body and a length W [mm] in the stacking direction of the stacked body satisfies a relationship 0.05?W/S?0.9.
    Type: Application
    Filed: February 27, 2018
    Publication date: December 24, 2020
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hayato FUJITA, Kenji MOTOI, Takashi KANNO, Takeshi YAMANA
  • Patent number: 10818939
    Abstract: Provided is a redox flow battery in which damage is unlikely to occur in a membrane. A redox flow battery includes a pair of adjacent cell frames, each cell frame including a frame body in which a flow channel for an electrolyte is formed, and a bipolar plate disposed inside the frame body; a positive electrode and a negative electrode disposed so as to face each other between the bipolar plates of the pair of cell frames; a membrane interposed between the positive electrode and the negative electrode; a protection plate which covers the flow channel and presses edge portions of the positive electrode or the negative electrode toward the bipolar plate; and a membrane protection structure which prevents the membrane from being broken by contact between the protection plate and the membrane.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: October 27, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kosuke Shiraki, Takashi Kanno, Takefumi Ito, Masahiro Kuwabara, Hideyuki Yamaguchi, Hayato Fujita, Kiyoaki Hayashi, Kiyoaki Moriuchi
  • Patent number: 10790530
    Abstract: The battery cell for a flow battery includes a cell frame including a frame including a through-window and a manifold serving as an electrolyte flow path, and a bipolar plate blocking the through-window; a positive electrode disposed on one surface side of the bipolar plate; and a negative electrode disposed on another surface side of the bipolar plate. In this battery cell, in the frame, a thickness of a portion in which the manifold is formed is defined as Ft; in the bipolar plate, a thickness of a portion blocking the through-window is defined as Bt; in the positive electrode, a thickness of a portion facing the bipolar plate is defined as Pt; in the negative electrode, a thickness of a portion facing the bipolar plate is defined as Nt; and these thicknesses satisfy Ft?4 mm, Bt?Ft?3.0 mm, Pt?1.5 mm, and Nt?1.5 mm.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: September 29, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Takashi Kanno, Katsuya Yamanishi, Takefumi Ito, Masahiro Kuwabara, Kiyoaki Moriuchi, Hideyuki Yamaguchi, Hayato Fujita, Kousuke Shiraki, Kiyoaki Hayashi
  • Patent number: 10749202
    Abstract: A redox flow battery includes a cell frame having a frame body in which a sealing groove is formed and a sealing member disposed in the sealing groove. The redox flow battery includes an adhesive that fixes the sealing member to the sealing groove, and a type A durometer hardness of the adhesive after curing is 100 or less. Preferably, the type A durometer hardness of the adhesive after curing is less than or equal to a type A durometer hardness of the sealing member.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: August 18, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kousuke Shiraki, Takashi Kanno, Haruhisa Toyoda, Takefumi Ito, Masahiro Kuwabara, Hideyuki Yamaguchi, Hayato Fujita, Kiyoaki Hayashi
  • Patent number: 10746583
    Abstract: A water content measuring device measures water content of an object to be measured. The water content measuring device includes two plate members that are disposed facing each other, a current generating unit, a measuring unit, and an arithmetic processing unit. The current generating unit generates current supplied between the two plate members. The measuring unit measures electrostatic capacitance generated by the current supplied between the two plate members. The arithmetic processing unit is configured to convert the electrostatic capacitance measured by the measuring unit to water content. Two plate members each have a shape or are disposed such that at least two points on a leading edge of the object enter between the two plate members at different timings in a direction perpendicular to a passing direction in which the object passes through the two plate members.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 18, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yohei Kushida, Keita Maejima, Hiroshi Okamura, Natsuko Ishizuka, Hayato Fujita, Masaki Tsugawa, Yuji Ikeda
  • Publication number: 20200259198
    Abstract: The battery cell for a flow battery includes a cell frame including a frame including a through-window and a manifold serving as an electrolyte flow path, and a bipolar plate blocking the through-window; a positive electrode disposed on one surface side of the bipolar plate; and a negative electrode disposed on another surface side of the bipolar plate. In this battery cell, in the frame, a thickness of a portion in which the manifold is formed is defined as Ft; in the bipolar plate, a thickness of a portion blocking the through-window is defined as Bt; in the positive electrode, a thickness of a portion facing the bipolar plate is defined as Pt; in the negative electrode, a thickness of a portion facing the bipolar plate is defined as Nt; and these thicknesses satisfy Ft?4 mm, Bt?Ft?3.0 mm, Pt?1.5 mm, and Nt?1.5 mm.
    Type: Application
    Filed: January 17, 2019
    Publication date: August 13, 2020
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Takashi Kanno, Katsuya Yamanishi, Takefumi Ito, Masahiro Kuwabara, Kiyoaki Moriuchi, Hideyuki Yamaguchi, Hayato Fujita, Kousuke Shiraki, Kiyoaki Hayashi
  • Publication number: 20200112044
    Abstract: The battery cell for a flow battery includes a cell frame including a frame including a through-window and a manifold serving as an electrolyte flow path, and a bipolar plate blocking the through-window; a positive electrode disposed on one surface side of the bipolar plate; and a negative electrode disposed on another surface side of the bipolar plate. In this battery cell, in the frame, a thickness of a portion in which the manifold is formed is defined as Ft; in the bipolar plate, a thickness of a portion blocking the through-window is defined as Bt; in the positive electrode, a thickness of a portion facing the bipolar plate is defined as Pt; in the negative electrode, a thickness of a portion facing the bipolar plate is defined as Nt; and these thicknesses satisfy Ft?4 mm, Bt?Ft?3.0 mm, Pt?1.5 mm, and Nt?1.5 mm.
    Type: Application
    Filed: January 17, 2019
    Publication date: April 9, 2020
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Takashi Kanno, Katsuya Yamanishi, Takefumi Ito, Masahiro Kuwabara, Kiyoaki Moriuchi, Hideyuki Yamaguchi, Hayato Fujita, Kousuke Shiraki, Kiyoaki Hayashi
  • Patent number: 10593964
    Abstract: A bipolar plate is a bipolar plate for a battery, the bipolar plate having a positive electrode disposed on a first surface side thereof and a negative electrode disposed on a second surface side thereof, wherein at least one of the first surface and the second surface is provided with a flow path through which an electrolyte flows. The flow path includes an introduction port for the electrolyte, a discharge port for the electrolyte, and a groove section which is located between the introduction port and the discharge port and guides the electrolyte to a predetermined route. The groove section includes a plurality of vertical groove sections which extend in a vertical direction and are arranged in parallel in a direction orthogonal to the vertical direction when the bipolar plate is placed at a predetermined position in the battery.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: March 17, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Hayato Fujita, Hideyuki Yamaguchi, Takashi Kanno, Takefumi Ito, Masahiro Kuwabara, Kiyoaki Hayashi
  • Patent number: 10571841
    Abstract: A thickness detector includes a rotator having different shape marks, disposed at different positions in a rotation direction; an opposing member disposed opposite the rotator; a detector to detect and output a displacement amount of the rotator or the opposing member in a sheet thickness direction; and a controller. The controller is configured to acquire first output values for one rotation from the detector, in a state without sheet; determine, based on a value output from the detector, whether one of the plurality of marks is detected in a state with the sheet held; acquire a predetermined number of second output values after one of the marks is detected; extract, from the first output values, values corresponding to the second output values, based on the value corresponding to the detected mark; and calculate a sheet thickness based on the second output values and the extracted first output values.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: February 25, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Hayato Fujita, Keita Maejima, Hiroshi Okamura, Masaki Tsugawa, Yuji Ikeda, Yohei Kushida, Emiko Kawarasaki
  • Patent number: 10566644
    Abstract: Provided are a battery cell that can be produced efficiently. A frame body of each cell frame of a battery cell includes an inner peripheral recessed portion formed by reducing a thickness of a peripheral portion that surrounds an entire perimeter of the penetrating window so that the peripheral portion has a smaller thickness than other portions of the frame body. A bipolar plate of the battery cell includes an outer peripheral engaging portion that engages with the inner peripheral recessed portion, the outer peripheral engaging portion being a portion having a particular width and extending throughout an entire outer periphery of the bipolar plate.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: February 18, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Hideyuki Yamaguchi, Katsuya Yamanishi, Takashi Kanno, Takefumi Ito, Masahiro Kuwabara, Kiyoaki Moriuchi, Kiyoaki Hayashi, Hayato Fujita, Kousuke Shiraki
  • Publication number: 20190379062
    Abstract: A bipolar plate is disposed between a positive electrode and a negative electrode of a redox flow battery. The bipolar plate has, in a surface of the bipolar plate facing at least one of the positive electrode and the negative electrode, a plurality of grooves through which an electrolyte flows and a ridge positioned between the adjacent grooves. The bipolar plate includes rough surfaces which are disposed in at least parts of groove inner surfaces defining the respective grooves and surface roughness of which represented by arithmetic mean roughness Ra is 0.1 ?m or larger.
    Type: Application
    Filed: January 19, 2017
    Publication date: December 12, 2019
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Hayato FUJITA, Kenji MOTOI
  • Patent number: 10488787
    Abstract: A remaining powder amount detection device includes: a powder moving portion configured to change a distribution of powder in an inner space of a powder container containing the powder; a drive unit configured to drive the powder moving portion; a change value detector configured to detect a change value indicating a positional change of the powder container; and a remaining powder amount detector configured to detect a remaining amount of the powder contained in the powder container, based on the change value. The drive unit is configured to drive the powder moving portion so as to move the powder to near the change value detector. The remaining powder amount detector is configured to detect the remaining amount based on the change value in a state where the powder is moved to near the change value detector.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: November 26, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hiroshi Okamura, Masaki Tsugawa, Yuji Ikeda, Natsuko Ishizuka, Hayato Fujita, Yohei Kushida, Keita Maejima