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).

  • Patent number: 11946916
    Abstract: A waveform processing assistance device includes an acquirer that acquires a plurality of waveform data obtained by an analysis of a sample, a selector that selects reference data among the waveform data, an extractor that extracts correct answer peaks and correct answer data from the reference data a determiner that determines each processing section including a correct answer peak and each parameter initial value, a waveform processor that performs waveform processing in each determined processing section based on each parameter initial value, an adjuster that generates a parameter adjustment value at which a waveform processing result obtained in each processing section matches or approximates corresponding correct answer data, and a program creator that creates a waveform processing execution program that includes an instruction to execute waveform processing using the parameter adjustment value in each processing section.
    Type: Grant
    Filed: December 12, 2021
    Date of Patent: April 2, 2024
    Assignee: SHIMADZU CORPORATION
    Inventors: Yuki Ishikawa, Hiroaki Kozawa, Takeshi Yoshida, Yuji Katsuyama, Toshinobu Yanagisawa
  • Patent number: 11942313
    Abstract: A mass spectrometer according to an aspect of the present invention includes, to optimize N (where N is an integer of 2 or more) parameters that affect ionization efficiency in an ion source (31), a measurement controller (41) that causes respective units to repeatedly execute measurement on a sample containing a target component while changing values of the N parameters or a value set of M (where M is an integer smaller than N) parameters, in a plurality of stages, and a parameter determiner (53) that sequentially finds an optimum value for each parameter based on a result of the measurement executed under control of the measurement controller (41). At least one parameter whose physical quantity is temperature is optimized prior to all of the parameters whose physical quantities are other than temperature.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: March 26, 2024
    Assignee: SHIMADZU CORPORATION
    Inventors: Yusuke Tagawa, Yuki Ishikawa
  • Patent number: 11942314
    Abstract: A mass spectrometer includes an ionization unit, a mass separation unit, a detection unit, a first measurement control unit configured to control the ionization unit to repeatedly execute a first measurement on a target sample while changing values of a plurality of parameters defined as device parameters, a second measurement control unit configured to control the ionization unit to set a value of each of the plurality of parameters to a predetermined reference value and execute a second measurement on the target sample at two or more time points before, after, or in a middle of repetition of the first measurement, a correction processing unit configured to correct results of the first measurements using results of the second measurements, and a device parameter-related information acquisition unit configured to determine the plurality of parameters using the corrected measurement results or acquire reference information for determining the plurality of parameters.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: March 26, 2024
    Assignee: SHIMADZU CORPORATION
    Inventors: Yusuke Tagawa, Yuki Ishikawa
  • Publication number: 20240092424
    Abstract: An electromotive compressor fixed to a front side of an engine includes a live part. A harness connection portion where a hinge-voltage harness is connected is provided in an outer peripheral area of a left side, in a vehicle width direction, of the electromotive compressor. A protecting member comprises a first cover portion which covers an area corresponding to the live part from the front side and a second cover portion which is provided continuously to the first cover portion and covers the harness connection portion from the front side with a specified distance from the harness connection portion. A low rigidity portion which has lower rigidity than the first covet portion and the second cover portion is provided at a continuous portion of the first cover portion and the second cover portion.
    Type: Application
    Filed: February 14, 2023
    Publication date: March 21, 2024
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yuki WATABE, Yasushi ISHIKAWA, Ryosuke UETA, Shinji YAMAUCHI
  • Publication number: 20240085743
    Abstract: In order to avoid generation of black unevenness caused by the water intrusion into a liquid crystal display device, there is to provide a liquid crystal display device including a display area and a terminal portion, in which a TFT substrate with an organic passivation film formed and an opposite substrate are adhered to each other by a seal portion and a liquid crystal is enclosed there, wherein in the seal portion of the TFT substrate, a groove-shaped through-hole is formed in the organic passivation film to surround the display area, a water absorption layer formed of the same material in the same process as that of the organic passivation film is formed within the groove-shaped through-hole, and the water absorption layer is not covered with the inorganic insulating film.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Inventors: Tomonori NISHINO, Masato SHIMURA, Tomokazu ISHIKAWA, Yuki KURAMOTO, Satoshi HASHIMOTO
  • Patent number: 11894751
    Abstract: A housing of a drive device includes a refrigerant flow path through which a refrigerant flows. The refrigerant flow path includes a first flow path, a second flow path, a third flow path, and a fourth flow path. The refrigerant to be sent from a pump flows through the first flow path. The refrigerant to be supplied to the motor portion flows in the second flow path. The third flow path supplies a part of the refrigerant flowing through the second flow path to the outer surface of a stator. The fourth flow path supplies the other part of the refrigerant flowing through the second flow path to a hollow portion of a shaft. A minimum flow-path cross-sectional area in the fourth flow path is smaller than a minimum flow-path cross-sectional area in the third flow path.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: February 6, 2024
    Assignee: NIDEC CORPORATION
    Inventors: Keisuke Nakata, Yuki Ishikawa, Kouhei Oba
  • Patent number: 11876433
    Abstract: A housing of a drive device includes a tubular portion, a side plate portion, a plate portion, and a peripheral wall portion. The tubular portion extends in a first direction and accommodates a motor. The side plate portion has a plate shape intersecting the first direction, and is at one end portion of the tubular portion in the first direction. The plate portion expands from the tubular portion along one of the first direction and a second direction perpendicular to the first direction. The peripheral wall portion surrounds an inverter accommodation portion that accommodates inverter when viewed from a third direction perpendicular to the first direction and the second direction, and is connected to the plate portion. Each of a pump and an oil cooler is at any of one end portion of the peripheral wall portion in the second direction, another end portion of the plate portion in the third direction, and another end portion of the side plate portion in the first direction.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: January 16, 2024
    Assignee: NIDEC CORPORATION
    Inventors: Yuki Ishikawa, Hitoshi Kuroyanagi, Naohiro Wada
  • Patent number: 11863043
    Abstract: A rotary electric machine includes a rotor having a hollow shaft, a housing, a current shunter fixed to the housing and in electrical contact with the shaft and the housing, and a nozzle member for feeding a fluid inside the shaft. The shaft has an open end portion on a first axial side. The housing includes a bottom wall on the first axial side from the open end portion, and a peripheral wall protruding from the bottom wall toward a second axial side and surrounding the open end portion. The nozzle member has a feeding tubular part at least partly inserted inside the shaft from the open end portion, and a flange portion protruding radially outward from the feeding tubular part. The current shunter is located radially inside the peripheral wall, and the flange portion is located between the current shunter and the bottom wall in an axial direction.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: January 2, 2024
    Assignee: NIDEC CORPORATION
    Inventors: Keisuke Nakata, Yuki Ishikawa
  • Publication number: 20230399475
    Abstract: The present invention provides a film for a liquid crystal device that is a film (15 or 16) used for a liquid crystal device (10) and contains a thermoplastic resin, in which the NI point change of liquid crystal upon contacting the film with the liquid crystal is ?2° C. to +2° C.
    Type: Application
    Filed: November 9, 2021
    Publication date: December 14, 2023
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yumiko TERAGUCHI, Yuji OOHIGASHI, Yuuki OKADA, Kanako URADOKORO, Naoki KAMOSHIDA, Yuki ISHIKAWA
  • Patent number: 11837940
    Abstract: A transmission mechanism device includes a transmission mechanism including a hollow shaft, and a bearing supporting an outer face of the shaft. A holder holding the bearing is on the inner face of a housing of the transmission mechanism. The holder has a facing face facing an end of the shaft, a tubular portion holding the bearing and protruding in the axial direction radially from the facing face, and a rib inside the tubular portion and protruding in the axial direction from the facing face. The rib extends in a concave shape opening upward. A lower end of an inner face of the rib is below an upper end of an inner face of the shaft when viewed from the axial direction. At least one end of the rib in an extending direction faces an inner face of the tubular portion via a gap when viewed from the axial direction.
    Type: Grant
    Filed: March 3, 2022
    Date of Patent: December 5, 2023
    Assignee: NIDEC CORPORATION
    Inventors: Keisuke Nakata, Yuki Ishikawa
  • Patent number: 11828358
    Abstract: A transmission mechanism device includes a transmission mechanism including gears, a first shaft, and a first bearing supporting the first shaft, a housing accommodating the transmission mechanism and having a first bearing holder portion on the inner face, oil collected in the lower region of the housing, and a catch tank disposed in the housing and opens upwards. The first bearing holder portion has a holding tubular portion that holds the first bearing from radially outside. The holding tubular portion has a cutout portion that connects the inside and outside of the holding tubular portion. A flow passage including a cutout portion is provided on the inner face of the housing. The catch tank includes a reservoir and a feed portion extending from the inside of the reservoir to the holding tubular portion. The distal end portion of the feed portion is inserted into the flow passage.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: November 28, 2023
    Assignee: NIDEC CORPORATION
    Inventors: Keisuke Nakata, Yuki Ishikawa
  • Publication number: 20230357476
    Abstract: Provided is a resin composition capable of enhancing the application property, and enhancing the grindability and the oil resistance of a cured body. A resin composition according to the present invention comprises a (meth)acrylic monomer, and a (meth)acrylic polymer, the (meth)acrylic monomer includes a first (meth)acrylic monomer, the first (meth)acrylic monomer has a glass transition temperature of homopolymer thereof of 65° C. or more and 110° C. or less, a content of the first (meth)acrylic monomer in 100% by weight of the (meth)acrylic monomer is 50% by weight or more and 85% by weight or less, the (meth)acrylic polymer has a weight average molecular weight of 400000 or more and 1900000 or less, and a content of the (meth)acrylic polymer, relative to 100 parts by weight of the (meth)acrylic monomer is 5 parts by weight or more and 30 parts by weight or less.
    Type: Application
    Filed: September 13, 2021
    Publication date: November 9, 2023
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Shinji KAWADA, Yuki ISHIKAWA, Tatsuya IWAMOTO, Yuuki OKADA
  • Patent number: 11784533
    Abstract: A drive device includes a motor, an inverter to control current supplied to the motor, plate-shaped busbars that electrically connect the motor with the inverter, and a housing that accommodates the motor, the inverter, and the busbars. The housing includes a partition wall that partitions the inside of the housing into a motor housing and an inverter housing. The partition wall is provided with a through hole. Each busbar includes a motor connection terminal, an inverter connection terminal, a first portion extending from the motor connection terminal toward the through hole, and a second portion extending from the first portion to the inverter connection terminal through the through hole. At least two busbars overlap each other in a plate thickness direction inside the through hole.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: October 10, 2023
    Assignee: NIDEC CORPORATION
    Inventors: Hitoshi Kuroyanagi, Yuki Ishikawa
  • Patent number: 11777364
    Abstract: A gear portion of a drive device is connected to a motor shaft. An oil passage through which oil to cool a motor flows includes a first oil passage, a second oil passage, a third oil passage, and a fourth oil passage. The first oil passage connects a gear accommodation portion and a pump accommodation portion. The second oil passage connects the pump accommodation portion and an oil cooler. The third oil passage connects the oil cooler and the fourth oil passage. The fourth oil passage connects the third oil passage and a motor accommodation portion. Each of the first oil passage, the second oil passage, and the third oil passage is in a first housing portion. The fourth oil passage is in a third housing portion.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: October 3, 2023
    Assignee: NIDEC CORPORATION
    Inventors: Yuki Ishikawa, Hitoshi Kuroyanagi, Naohiro Wada
  • Patent number: 11732795
    Abstract: A drive device includes a motor, a housing, an oil passage in the housing, an oil pump in which a portion of the oil passage is provided, and a strainer inside the housing and in which a portion of the oil passage is provided. The oil passage includes an oil sump in which oil is accumulated and a suction path connecting the oil sump and the oil pump. A central axis of the oil pump extends in a direction intersecting the vertical direction. The strainer is in the suction path. The strainer includes a suction port to suction oil from the oil sump, a discharge port to discharge oil toward the oil pump, and a filter. The suction port opens downward in the vertical direction. The discharge port opens in a direction intersecting the vertical direction toward the oil pump.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: August 22, 2023
    Assignee: NIDEC CORPORATION
    Inventors: Yuki Ishikawa, Takanobu Oyama, Keisuke Fukunaga
  • Patent number: 11731399
    Abstract: Provided is an interlayer film for laminated glass capable of enhancing the sound insulating property of laminated glass over a wide resonance frequency region. An interlayer film for laminated glass according to the present invention has a one-layer or two or more-layer structure, and when the interlayer film is arranged between two sheets of clear float glass having a width of 25 mm, a length of 300 mm and a thickness of 2 mm to obtain a laminated glass X, a loss factor at a second resonance frequency, a loss factor at a third resonance frequency, and a loss factor at a fourth resonance frequency measured by a central exciting method at 20° C. in mechanical impedance measurement in accordance with ISO16940 of the laminated glass X are respectively 0.4 or more.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: August 22, 2023
    Assignee: SEKISUI CHEMICAL CO. LTD.
    Inventors: Yuki Ishikawa, Tatsuya Iwamoto, Shinji Kawada, Yuuki Okada
  • Publication number: 20230261542
    Abstract: A motor unit includes a motor including a rotor to rotate about a motor axis, and a stator radially outside of the rotor, a reduction gear connected to the motor, a differential connected to the motor through the reduction gear, a housing including a housing space to house the motor, the reduction gear, and the differential, and an oil passage to lead an oil to the motor. The oil passage includes an electric pump and a cooler. The electric pump and the cooler are fixed to the housing. The electric pump includes a portion located vertically below the cooler.
    Type: Application
    Filed: March 9, 2023
    Publication date: August 17, 2023
    Inventors: Yasuo YAMAGUCHI, Yuki ISHIKAWA
  • Patent number: 11728707
    Abstract: According to one aspect of the present disclosure, a driving device is a driving device for rotating an axle of a vehicle and includes: a motor having a rotor rotating about a motor axis extending in a horizontal direction orthogonal to a vertical direction; a reduction gear connected to the rotor; a differential gear connected to the motor via the reduction gear; and a housing configured to house the motor, the reduction gear and the differential gear therein. The housing has a protrusion that protrudes upward in the vertical direction, and at least one circumferential rib that extends in a circumferential direction. The protrusion has a female screw hole into which an eye bolt can be tightened. At least one of the circumferential ribs is connected to the protrusion.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: August 15, 2023
    Assignee: NIDEC CORPORATION
    Inventors: Yuki Ishikawa, Hayato Nakama, Keisuke Fukunaga
  • Patent number: 11724481
    Abstract: Provided is an interlayer film for laminated glass capable of enhancing the pour stability at the time of extrusion during production of the interlayer film for laminated glass, and having excellent shape stability. An interlayer film for laminated glass according to the present invention is an interlayer film for laminated glass having a one-layer or two or more-layer structure, and includes a first layer containing a thermoplastic (meth)acrylic polymer and satisfies at least one of a first configuration that the thermoplastic (meth)acrylic polymer contained in the first layer is a thermoplastic (meth)acrylic polymer having a molecular weight distribution ratio of weight average molecular weight to number average molecular weight of 1 or more and 6 or less, and a second configuration that the thermoplastic (meth)acrylic polymer contained in the first layer is a thermoplastic (meth)acrylic polymer having a gel fraction of 5% by weight or less.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: August 15, 2023
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Shinji Kawada, Yuki Ishikawa
  • Patent number: 11728710
    Abstract: The motor unit includes: a motor having a motor shaft that rotates around a motor axis extending along a horizontal direction; a gear section connected to the motor shaft on one side of the motor shaft in an axial direction; a housing that houses the motor and the gear section; and an oil contained in the housing. The housing includes a motor housing section that has inside a motor chamber for housing the motor, and a gear housing section that has inside a gear chamber for housing the gear section. The housing is provided with an oil passage along which the oil circulates for cooling the motor. A pump that supplies the oil to the motor is provided in a channel of the oil passage. The pump has a pump motor. A rotation axis of the pump motor is parallel to the motor axis.
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: August 15, 2023
    Assignee: NIDEC CORPORATION
    Inventors: Yuki Ishikawa, Takanobu Oyama, Keisuke Fukunaga