Patents by Inventor Yuki Ishikawa

Yuki Ishikawa 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: 20200311851
    Abstract: A moving means display method includes: selecting, based on first position information that indicates a position of a user and second position information that indicates positions of one or more respective vehicles, one or more vehicles located within a predetermined range; selecting, based on the first position information and third position information that indicates positions of one or more respective drivers, one or more drivers located within a predetermined range; and displaying two types of services from among a service in which one of the selected one or more vehicles is lent to the user, a service in which one of the selected one or more drivers drives a vehicle of the user as a substitute driver, and a service in which one of the selected one or more drivers drives a vehicle other than the vehicle of the user to transport the user.
    Type: Application
    Filed: June 16, 2020
    Publication date: October 1, 2020
    Applicant: FUJITSU LIMITED
    Inventors: Takuro Ikeda, Taizo ANAN, YUKI ISHIKAWA
  • Publication number: 20200313506
    Abstract: A motor according to a preferred embodiment of the present disclosure includes a rotor arranged to be capable of rotating about a central axis, a stator located radially outside of the rotor, a housing arranged to house the rotor and the stator, and a plurality of bolts arranged to fasten the stator to the housing. The housing includes a tubular portion arranged radially outside of the stator to surround the stator; a plurality of stator support portions each of which is arranged to project radially inward from an inner circumferential surface of the tubular portion, and includes a seating surface arranged to face a first axial side; and screw holes each of which is arranged to open in the seating surface of a separate one of the stator support portions. The stator includes a plurality of through holes each of which is arranged to extend along an axial direction. The bolts are passed through the through holes of the stator and screwed into the screw holes of the stator support portions.
    Type: Application
    Filed: February 12, 2020
    Publication date: October 1, 2020
    Inventors: Jun MURAKAMI, Kazuyuki YAMAMOTO, Daisuke OGASAWARA, Yuki ISHIKAWA
  • Publication number: 20200300353
    Abstract: A drive apparatus includes a motor; a reduction gear connected to the motor; a differential connected to the reduction gear, for rotating an axle about a differential axis; a housing including a gear housing portion housing the reduction gear and the differential; and an oil housed in the gear housing portion. The differential includes a gear for rotating about the differential axis. An end portion of the gear is lower than the reduction gear, and is configured to soak in the oil. The housing includes an oil drain hole and an oil feed hole for joining an interior of the housing and a space outside of the housing, a first stopper member removably in the oil drain hole, and a second stopper member removably in the oil feed hole. Each of the oil drain hole and the oil feed hole is in a portion of the gear housing portion.
    Type: Application
    Filed: February 4, 2020
    Publication date: September 24, 2020
    Inventors: Yuki ISHIKAWA, Shuhei NAKAMATSU
  • Publication number: 20200198301
    Abstract: Provided is an interlayer film for laminated glass capable of effectively enhancing the sound insulating property at 6300 Hz while effectively preventing deterioration in sound insulating property at 3150 Hz in laminated glass. An interlayer film for laminated glass according to the present invention has a one-layer structure or a two or more-layer structure and includes a resin layer containing a resin and a plasticizer. The interlayer film has a resonance frequency X of 550 Hz or more and 740 Hz or less, a loss factor Y in a secondary mode of 0.35 or more, and satisfies a formula: Y>0.0008X?0.142 in a measurement of resonance frequency in a secondary mode in a damping test for laminated glass according to a central exciting method of laminated glass, when the laminated glass is obtained by arranging the interlayer film between two glass plates of 25 mm wide, 300 mm long and 2 mm thick.
    Type: Application
    Filed: May 18, 2018
    Publication date: June 25, 2020
    Inventors: Tatsuya Iwamoto, Yuki Ishikawa, Shinji Kawada, Yuu Sakamoto
  • Publication number: 20200161937
    Abstract: One aspect of a motor of the present disclosure may include a rotor having a motor shaft disposed along a central axis extending in one direction, a stator facing the rotor via a gap in a radial direction, and a housing having an accommodating portion configured to accommodate the rotor and the stator, and to enable oil to be stored therein, wherein the housing comprises a lower wall portion facing a vertical-directional lower region in the inside of the accommodating portion, the lower wall portion comprises a cooling flow passage formed therein, and refrigerant flows in the cooling flow passage, and at least a portion of the cooling flow passage overlaps the vertical-directional lower region in the inside of the accommodating portion when viewed along a vertical direction.
    Type: Application
    Filed: June 19, 2018
    Publication date: May 21, 2020
    Inventors: Yuki ISHIKAWA, Takayuki MIGITA, Shuhei NAKAMATSU
  • Publication number: 20200139679
    Abstract: Provided is a resin film capable of enhancing both the sound insulating property and the transparency. A resin film according to the present invention has a one-layer structure or a two or more-layer structure, and includes a first layer containing polyvinyl acetate or a (meth)acryloyl polymer, and a compound having two or more hydroxyl groups, and the hydroxyl group in the compound having two or more hydroxyl groups is a secondary or tertiary alcoholic hydroxyl group or a phenolic hydroxyl group.
    Type: Application
    Filed: July 23, 2018
    Publication date: May 7, 2020
    Inventors: Yuki Ishikawa, Tatsuya Iwamoto, Shinji Kawada, Yasuharu Nagai, Satoshi Haneda
  • Publication number: 20200130338
    Abstract: Provided is a resin film capable of enhancing both the sound insulating property and the transparency. A resin film according to the present invention has a one-layer structure or a two or more-layer structure, and includes a first layer containing a resin component that is a thermoplastic resin or a cured product of a photocurable compound or a moisture-curable compound, and a terpene phenol resin.
    Type: Application
    Filed: July 23, 2018
    Publication date: April 30, 2020
    Inventors: Yuki Ishikawa, Tatsuya Iwamoto, Shinji Kawada, Yasuharu Nagai, Satoshi Haneda
  • Publication number: 20200124161
    Abstract: A motor assembly includes a motor including a rotor that rotates about a motor axis, a transmission that transmits motive power of the motor to an axle, a housing that accommodates the motor and the transmission, and an oil pump fixed to the housing. The housing includes a tubular motor housing extending along the motor axis, and the motor housing includes a rib on a side surface facing the oil pump. The rib protrudes to a radially outer side from the side surface, and has a plate shape extending along the motor axis.
    Type: Application
    Filed: October 17, 2019
    Publication date: April 23, 2020
    Inventors: Daisuke OGASAWARA, Kazuyuki YAMAMOTO, Jun MURAKAMI, Yuki ISHIKAWA
  • Publication number: 20200103590
    Abstract: An object of the present invention is to provide an optical fiber bundle having high adhesive strength at an end, and an endoscope using the optical fiber bundle. Another object of the present invention is to provide a method of producing the optical fiber bundle having high adhesive strength at an end. An embodiment of the present invention provides an optical fiber bundle including a bundle of optical transmission elements, each of which includes a fiber including a core made of a first glass and a cladding made of a second glass and covering an outer periphery of the core, and a covering layer covering the outer periphery of the cladding. The covering layer includes an alkyl group having 1 to 7 carbon atoms and not being fluorine-substituted. The alkyl group is bonded to the cladding via a siloxane bond.
    Type: Application
    Filed: November 27, 2019
    Publication date: April 2, 2020
    Applicant: OLYMPUS CORPORATION
    Inventor: Yuki ISHIKAWA
  • Patent number: 10598252
    Abstract: A damper device includes a first rotary element, a second rotary element, and a third rotary element being each rotatable about a rotary center, a first elastic member elastically expanding and contracting in response to a relative rotation of the first rotary element and the second rotary element, a first stopper being provided at the first rotary element and the second rotary element, the first stopper restricting the relative rotation of the first rotary element and the second rotary element by a contact thereof, a second elastic member elastically expanding and contracting in response to a relative rotation of the second rotary element and the third rotary element, and a second stopper being provided at the first rotary element and the third rotary element, the second stopper restricting the relative rotation of the first rotary element and the third rotary element by a contact thereof.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: March 24, 2020
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Yuki Ishikawa, Atsushi Yamazumi, Yasuyuki Imai, Tsuneo Ukei
  • Publication number: 20200023619
    Abstract: Provided is an interlayer film for laminated glass with which the sound insulating properties of laminated glass can be enhanced. The interlayer film for laminated glass according to the present invention has a one-layer structure or a two or more-layer structure, and includes a first layer having a glass transition temperature in dynamic viscoelasticity measurement of ?30° C. or more and 10° C. or less, and when a glass transition temperature in unit ° C. of the first layer is referred to as Tg, a loss tangent tan ? of the first layer at Tg satisfies both of the following formula (1) and formula (2): (Loss tangent tan ? of the first layer at Tg)?1.55??(1) (Loss tangent tan ? of the first layer at Tg)=A×(first storage modulus G? of the first layer at Tg?10° C./second storage modulus G? of the first layer at Tg+10° C.)+B??(2) in the above formula (2), A is 0.003 or more and 0.04 or less, and B is 0.7 or more and 1.4 or less.
    Type: Application
    Filed: February 2, 2018
    Publication date: January 23, 2020
    Inventors: Tatsuya Iwamoto, Yuu Sakamoto, Yuki Ishikawa, Shinji Kawada
  • Publication number: 20200007009
    Abstract: In a drive device, a housing includes an outer lid that covers one side in an axial direction of a motor shaft. A pump includes an external gear fixed to an end on one side in the axial direction of the motor shaft, an internal gear surrounding a radial outside of the external gear and meshing with the external gear, a pump room recessed from a surface on the other side in the axial direction of an outer lid toward one side in the axial direction, the pump room accommodating the internal gear and the external gear, a suction port through which the oil is to be sucked into the pump room, and a discharge port through which the oil is to be discharged from the pump room. The motor shaft includes a motor shaft body to which a rotor core is fixed and a closer fixed to the motor shaft body to overlap the internal gear, and close at least a portion of the opening on the other side in the axial direction of the pump room.
    Type: Application
    Filed: August 7, 2017
    Publication date: January 2, 2020
    Inventors: Takayuki MIGITA, Yuki ISHIKAWA, Shuhei NAKAMATSU
  • Publication number: 20190366691
    Abstract: Provided is an interlayer film for laminated glass capable of enhancing the sound insulating properties of laminated glass, and making foaming less likely to occur in an end part. The interlayer film for laminated glass according to the present invention includes a first layer, and a lateral covering part that covers at least part of a lateral part of the first layer, and the first layer has a shear elastic modulus at 25° C. of 0.17 MPa or less, and the lateral covering part has a shear elastic modulus at 25° C. of more than 1 MPa.
    Type: Application
    Filed: February 2, 2018
    Publication date: December 5, 2019
    Inventors: Tatsuya Iwamoto, Yuu Sakamoto, Yuki Ishikawa, Shinji Kawada
  • Publication number: 20190334448
    Abstract: An inverter control device includes a flow path through which a cooling refrigerant flows is defined in a bottom surface of a casing made of a metal material. The flow path includes a flow inlet and a flow outlet in a first side surface of the casing, and includes an outward path that extends to a second side surface opposite to the first side surface from the first side surface, and a return path that extends to the first side surface from the second side surface.
    Type: Application
    Filed: April 25, 2019
    Publication date: October 31, 2019
    Inventors: Yuki ISHIKAWA, Naoki IWAGAMI, Hitoshi KUROYANAGI
  • Publication number: 20190219052
    Abstract: In a drive apparatus, a pump includes an external gear fixed to an end portion of a motor shaft on a first axial side, an internal gear surrounding the external gear on a radially outer side thereof to mesh with the external gear, a pump chamber to house the internal gear and the external gear, a suction inlet to suck an oil into the pump chamber, and a discharge outlet to discharge the oil from inside the pump chamber. The housing includes an outer cover to cover the motor shaft on the first axial side and having the pump chamber defined therein, and a first oil passage defined in the outer cover and connected to the discharge outlet. The motor shaft includes a second oil passage in an interior of the motor shaft and connected to the first oil passage, and a first through hole to connect the second oil passage to an outer circumferential surface of the motor shaft. The first oil passage is located on the first axial side of the pump chamber.
    Type: Application
    Filed: August 7, 2017
    Publication date: July 18, 2019
    Inventors: Yasuo YAMAGUCHI, Yuki ISHIKAWA
  • Publication number: 20190207478
    Abstract: A drive apparatus includes a motor that includes a motor shaft disposed along a first central axis that extends in one direction, a housing that includes a first housing portion housing the motor and that is capable of storing oil, and a liquid cooling portion disposed in thermal contact with an inverter electrically coupled to the motor, the liquid cooling portion including a refrigerant liquid flowing therein. The housing includes a contact portion with which the liquid cooling portion is in thermal contact. At least a portion of the contact portion is disposed below an oil surface of the oil stored in the housing.
    Type: Application
    Filed: August 7, 2017
    Publication date: July 4, 2019
    Inventors: Yasuo YAMAGUCHI, Takayuki MIGITA, Yuki ISHIKAWA
  • Publication number: 20190207481
    Abstract: A drive device includes a rotor, a stator, a housing including an accommodation portion to store oil, a pump driven through a motor shaft, and a transmission that transmits rotation of the motor shaft to a pump shaft. The pump includes an external gear fixed to the pump shaft, an internal gear surrounding the external gear and meshing with the external gear, a pump room provided in the housing and accommodating the internal gear and the external gear, a suction port through which the oil is to be sucked into the pump room, and a discharge port through which the oil is to be discharged from the pump room. The housing includes a first oil passage connected to the discharge port. The motor shaft includes a second oil passage provided in the motor shaft and connected to the first oil passage and a first through-hole connecting the second oil passage and an outer circumferential surface of the motor shaft.
    Type: Application
    Filed: August 7, 2017
    Publication date: July 4, 2019
    Inventors: Yasuo YAMAGUCHI, Yuki ISHIKAWA
  • Publication number: 20190207479
    Abstract: A drive apparatus includes a motor that includes a motor shaft disposed along a first central axis that extends in one direction a housing that includes a first housing portion housing the motor and that is capable of storing oil, a liquid cooling portion disposed in thermal contact with an inverter electrically coupled to the motor, the liquid cooling portion including a refrigerant liquid flowing therein, and a pipe portion connected to the liquid cooling portion, the refrigerant liquid inside the liquid cooling portion flowing in the pipe portion. The pipe portion passes inside the housing.
    Type: Application
    Filed: August 7, 2017
    Publication date: July 4, 2019
    Inventors: Yasuo YAMAGUCHI, Takayuki MIGITA, Yuki ISHIKAWA
  • Publication number: 20190186622
    Abstract: A motor unit includes a motor including a shaft to rotate about a motor axis, and a stator, a reduction gear, and a housing including a housing space that includes a motor chamber to house the motor and a gear chamber to house the reduction gear. The housing includes a partition to divide the motor chamber and the gear chamber. The shaft includes a first shaft portion, a connecting shaft portion, and a second shaft portion arranged coaxially with one another, and a separating mechanism between the connecting shaft portion and the second shaft portion. The first shaft portion includes a first end portion extending through an insert hole defined in the partition from a side on which the motor chamber lies. The connecting shaft portion includes a second end portion coupled to the first end portion, a third end portion located on a side opposite to the second end portion, and a connection flange portion extending radially outward at the third end portion.
    Type: Application
    Filed: August 7, 2017
    Publication date: June 20, 2019
    Inventors: Yuki ISHIKAWA, Yasuo YAMAGUCHI, Takayuki MIGITA
  • Publication number: 20190178365
    Abstract: A motor unit includes a motor including a rotor, a reduction gear including an intermediate gear to rotate about an intermediate axis, a differential including a ring gear arranged to rotate about a differential axis, a housing, oil in a vertically lower region of a housing space, and an oil passage to feed the oil to the motor. At least a portion of the ring gear is lower than a liquid surface of the oil in the vertically lower region of the housing space. A motor axis, the intermediate axis, and the differential axis to extend in parallel with one another in a horizontal direction. Each of the intermediate axis and the differential axis is lower than the motor axis.
    Type: Application
    Filed: August 8, 2017
    Publication date: June 13, 2019
    Inventors: Yuki ISHIKAWA, Yasuo YAMAGUCHI, Takayuki MIGITA