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: 20250122371
    Abstract: The present invention provides a thermosetting resin composition including: a solid epoxy resin that is solid at 25° C.; a non-solid epoxy resin that is non-solid at 25° C.; a fine particulate rubber dispersed in the non-solid epoxy resin; a curing agent; an inorganic filler; and a polycarbonate diol-derived polyurethane. In the thermosetting resin composition, the content of the fine particulate rubber is from 3 to 15 parts by mass with respect to the total parts by mass of the solid epoxy resin and the non-solid epoxy resin, the acid value of the polycarbonate diol-derived polyurethane is from 10 to 30 mg KOH/g, and the weight average molecular weight of the polycarbonate diol-derived polyurethane is from 15,000 to 60,000.
    Type: Application
    Filed: October 18, 2021
    Publication date: April 17, 2025
    Applicant: Arisawa MFG. Co., Ltd.
    Inventors: Takashi GONDAIRA, Katsuhiko FURUKAWA, Toshiki MOROHASHI, Yuki ISHIKAWA
  • Publication number: 20250119000
    Abstract: The present invention provides: a laminated magnetic material for a motor, the material having low core loss characteristics even in a high-frequency band; and a method for manufacturing said laminated magnetic material for a motor. Provided is a laminated magnetic material provided with a plurality of quenched alloy strips and a resin layer made of resin and disposed between the quenched alloy strips. The laminated magnetic material is characterized in that the adhesive stress ? [MPa] represented by the following equation is 1.
    Type: Application
    Filed: January 18, 2023
    Publication date: April 10, 2025
    Applicant: Proterial, Ltd.
    Inventors: Yuki ISHIKAWA, Shin NOGUCHI, Kyohei AIMUTA
  • Patent number: 12273012
    Abstract: A drive device includes a motor and an inverter. A motor axis is parallel to an output axis. The inverter is located in a second direction orthogonal to a first direction with respect to the motor axis and extends in a third direction orthogonal to the first and second directions. When viewed from the first direction, a virtual straight line passing through the axes extends in the third direction. An inverter housing portion overlaps the axes when viewed from the second direction, and has a boundary wall on the virtual straight line side in the second direction. In the second direction, a distance between the boundary wall and the output axis is smaller than a distance between the boundary wall and the motor axis. A motor side connection portion has a portion closer to the side opposite to the output axis than the motor axis in the third direction.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: April 8, 2025
    Assignee: NIDEC COPORATION
    Inventors: Yuki Ishikawa, Hitoshi Kuroyanagi, Naohiro Wada, Hironobu Kumagai, Hisashi Fujihara
  • Patent number: 12247219
    Abstract: The present invention relates to a method for inducing the differentiation of corneal epithelial cells from pluripotent stem cells. More specifically, the present invention relates to a method for autonomously differentiating pluripotent stem cells, such as human iPS cells, into ectodermal cell lineage in a serum-free medium without using feeder cells and inducing the differentiation of the resultant ocular surface ectodermal lineage cells into corneal epithelial cells.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: March 11, 2025
    Assignee: Osaka University
    Inventors: Kohji Nishida, Ryuhei Hayashi, Yuki Ishikawa
  • Patent number: 12212200
    Abstract: In a motor, a stator includes: a stator core having slots arranged in a circumferential direction; and conductor connection bodies with conductors connected in series and inserted into the slots. A conductor connection body includes: a first portion wave-wound toward one side in the circumferential direction from a first end to a second end; a second portion wave-wound toward the one side in the circumferential direction from a third end to a fourth end; and a folded portion connecting the first and second portions. The first and third ends protrude in an axial direction from different slots in the circumferential direction, and the second and fourth ends protrude in the axial direction from different slots in the circumferential direction. The conductors include a folded conductor that forms a folded portion connecting the second end of the first portion and the fourth end of the second portion.
    Type: Grant
    Filed: May 23, 2022
    Date of Patent: January 28, 2025
    Assignee: NIDEC CORPORATION
    Inventors: Yuki Ishikawa, Hiroyuki Abe, Hironobu Kumagai
  • Patent number: 12126239
    Abstract: In an electric power unit which accommodates at least an electric motor in a housing, polygonal rib regions in which polygonal ribs are respectively formed are provided on at least two surfaces of an outer peripheral surface of the housing, and the polygonal rib regions are connected by a circumferential rib. Here, a first axial rib and a second axial rib extending parallel to an axial direction are formed on the outer peripheral surface of the housing, and the polygonal rib region is provided in a portion sandwiched between the first axial rib and the second axial rib. Further, the circumferential rib is formed over the entire part of the polygonal rib region in a circumferential direction. Note that the polygonal rib is a honeycomb rib.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: October 22, 2024
    Assignee: NIDEC CORPORATION
    Inventors: Daisuke Ogasawara, Yuki Ishikawa, Keisuke Nakata, Jun Murakami, Hiroki Akaishi, Kazuyuki Yamamoto
  • Publication number: 20240349029
    Abstract: An access point device includes circuitry configured to communicate with a wireless terminal by using at least first and second frequency bands that are different from each other, and receive a data packet destined for the access point device that includes a data packet destined for the wireless terminal. The circuitry of the access point device is also configured to reconstruct the data packet destined for the wireless terminal from the data packet for the access point device that is received, and transmit the data packet destined for the wireless terminal that is reconstructed, to the wireless terminal by using one of the first and second frequency bands.
    Type: Application
    Filed: April 10, 2024
    Publication date: October 17, 2024
    Applicant: BUFFALO INC.
    Inventors: Yuki ISHIKAWA, Hidenori YUKAWA, Masaya TANIGAWA
  • Patent number: 12109783
    Abstract: Provided is an interlayer film for laminated glass capable of suppressing the generation of an optical strain in laminated glass, and enhancing the damping performance of laminated glass. 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 resin, and when the interlayer film is arranged between two sheets of clear float glass having a thickness of 2.5 mm to obtain a laminated glass X with a size of 150 mm in length and 300 mm in width, and the obtained laminated glass X is subjected to a specific measurement of optical strain, an optical strain value is 3.00 or less, whereas when the interlayer film is arranged between two sheets of clear float glass having a thickness of 2.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: October 8, 2024
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yuuma Takeda, Tatsuya Iwamoto, Yuki Ishikawa, Shinji Kawada
  • Publication number: 20240328502
    Abstract: A drive device includes a transmission in a housing, and a flow path. The transmission includes a shaft and a bearing supporting the shaft. The housing has a bearing holding portion that includes a facing surface on a first side in an axial direction with respect to an end on the first side of the shaft and orthogonal to the axial direction, and an inner surface extending from the facing surface to the other, second side in the axial direction and supporting the bearing. The flow path includes an inflow portion and an outflow portion below the inflow portion, both open to the inner surface. The facing surface has a rib protruding to the second side and orthogonal to the axial direction. At least a part of the rib is below the inflow portion, and at least a part of the rib covers the outflow portion from above.
    Type: Application
    Filed: March 29, 2024
    Publication date: October 3, 2024
    Inventors: Taishi SATODA, Ryosuke MATSUZAKI, Yuki ISHIKAWA, Yuta KURODA
  • Patent number: 12103372
    Abstract: In a drive device, a housing includes a motor accommodation portion for accommodating a motor and an inverter accommodation portion for accommodating an inverter unit, the motor accommodation portion includes a tubular portion of a tubular shape extending in a first direction, the inverter accommodation portion includes a peripheral wall portion surrounding the inverter accommodation portion when viewed from a second direction and a plate portion extending from the tubular portion along one side in a direction perpendicular to the first direction and intersecting the second direction and continuous with the peripheral wall portion, and at least one of the pump and the oil cooler is fixed to the plate portion.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: October 1, 2024
    Assignee: NIDEC CORPORATION
    Inventors: Yuki Ishikawa, Hitoshi Kuroyanagi
  • Patent number: 12106233
    Abstract: A model estimator (11) estimates a model function of an analyzing system (20) based on target observation data and reference observation data. For this estimation, the amount of variation between the model of the target system and that of a reference model is estimated from the target observation data and reference observation data. The model function of the target model is estimated after the observation data are corrected based on the estimated amount of variation. A parameter determiner (12) calculates an acquisition function based on the mean and covariance of the model function, and determines a parameter value for the next observation, using the acquisition function. A data acquirer (13) sets the parameter value in the analyzing system (20) and acquires a corresponding observed value. A loop process with the feedback of the observation data is repeated to determine an optimal parameter value.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: October 1, 2024
    Assignee: SHIMADZU CORPORATION
    Inventors: Yusuke Tagawa, Yuki Ishikawa
  • Publication number: 20240294806
    Abstract: A pressure-sensitive adhesive film which is a pressure-sensitive adhesive film comprising a thermoplastic resin, wherein a maximum peak temperature of tan ? is 0° C. or more and 52° C. or less, a shear storage elastic modulus at 20° C. is 3×105 Pa or more, and a proportion of an undissolved component in dissolution of 1.0 g of the pressure-sensitive adhesive film in 10 g of isopropyl alcohol is 35% by mass or more and 100% by mass or less.
    Type: Application
    Filed: June 16, 2022
    Publication date: September 5, 2024
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yuji OOHIGASHI, Yuki ISHIKAWA, Yumiko TERAGUCHI, Naoki KAMOSHIDA, Yuuki OKADA, Kanako URADOKORO
  • Publication number: 20240294807
    Abstract: The pressure-sensitive adhesive film of the present invention comprises a thermoplastic resin, wherein a shear storage elastic modulus at 85° C. is 0.06×106 Pa or more and 1.00×106 Pa or less, the pressure-sensitive adhesive film comprises no plasticizer or comprises less than 20 parts by mass of a plasticizer based on 100 parts by mass of the thermoplastic resin, and a gel fraction is 15% or less. The laminate of the present invention comprises the pressure-sensitive adhesive film of the present invention, a first organic material substrate, and at least one base material of a second organic material substrate and an inorganic material substrate. The liquid crystal display of the present invention and the laminated glass of the present invention each comprise the laminate of the present invention.
    Type: Application
    Filed: June 16, 2022
    Publication date: September 5, 2024
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yuji OOHIGASHI, Yuki ISHIKAWA, Naoki KAMOSHIDA
  • Publication number: 20240287355
    Abstract: The pressure-sensitive adhesive film of the present invention comprises a thermoplastic resin and has a thickness of 150 ?m or more and 2000 ?m or less, in which an amount of change in thickness of a test sample A in a predetermined compression creep test performed is 50 ?m or more and 325 ?m or less, and an adhesive force to a polycarbonate base material, as measured by a predetermined pressure-sensitive adhesive force measurement method, is 100 N or more. The laminate of the present invention comprises the pressure-sensitive adhesive film of the present invention, a first organic material substrate, and at least one base material of second organic material substrate and inorganic material substrate. The liquid crystal display of the present invention and the laminated glass of the present invention each comprises the laminate of the present invention.
    Type: Application
    Filed: June 16, 2022
    Publication date: August 29, 2024
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yuji OOHIGASHI, Yuki ISHIKAWA, Yumiko TERAGUCHI, Naoki KAMOSHIDA, Yuuki OKADA, Kanako URADOKORO
  • Patent number: 12046972
    Abstract: A motor includes a rotor, a stator, and first and second bus bar disposed on one side in an axial direction of the stator. The stator includes a winding portion including conductor connection bodies in which conductors are connected in series and a stator core having slots through which the conductor connection body passes. The winding portion includes a coil end located on one side in the axial direction of the stator core. The conductor connection body includes first and second ends located at an outermost circumference in the radial direction of the coil end. The first bus bar is connected to the first end. The second bus bar is connected to the second end. The first bus bar is located on one side in the axial direction of the coil end. The second bus bar is located on the radial outside of the coil end.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: July 23, 2024
    Assignee: NIDEC CORPORATION
    Inventors: Yuki Ishikawa, Hironobu Kumagai
  • Patent number: 12027933
    Abstract: A motor includes a rotor, a stator, and a bus bar unit disposed on one side in an axial direction of the stator. The stator includes conductor connection bodies and a segment coil. Each connection body includes first and second ends in the axial direction. The bus bar unit includes a neutral point bus bar connected to the first end and phase bus bars connected to the second end. The neutral point bus bar extends along a circumferential direction. The phase bus bar includes a main body extending along the circumferential direction and at least partially overlapping the neutral point bus bar and a connection portion extending from the main body to one side in the axial direction. The first end passes through one side in the axial direction of the neutral point bus bar and is connected to the connection portion.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: July 2, 2024
    Assignee: NIDEC CORPORATION
    Inventors: Yuki Ishikawa, Hironobu Kumagai
  • Publication number: 20240141082
    Abstract: The present invention provides a polyvinyl alcohol resin with which a polyvinyl acetal resin having a controlled particle size and forming less lumps during dissolution to exhibit excellent solubility can be produced. Provided is a polyvinyl alcohol resin containing: methyl acetate; a vinyl alcohol unit; and a vinyl acetate unit, the methyl acetate being contained in an amount of 0.05 to 3% by weight, the vinyl alcohol unit being contained in an amount of 80 to 99.5 mol %, the vinyl acetate unit having a mean chain length LA of 1 to 4.5, the vinyl alcohol unit having a mean chain length LO of 1 to 30.
    Type: Application
    Filed: March 7, 2022
    Publication date: May 2, 2024
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yuki ISHIKAWA, Masumi FUJITA, Shizuka SUGIHARA
  • Patent number: 11961727
    Abstract: A mass spectrometer according to one aspect of the present invention includes an ion source (31), a mass separator (32), and a detector (33), the mass spectrometer further including: a parameter optimization unit (531, 532, 533) configured to optimize a parameter value using a Bayesian optimization method based on a result obtained by making measurements while changing values of device parameters including a plurality of parameters that affects ionization efficiency in the ion source (31), a display processor (536) configured to display a sensitivity model which is a posterior distribution indicating a relationship between a plurality of parameters in all or some of the device parameters and signal strength estimated during the optimization of the device parameters, expressing as a graph like a heat map or an array of a plurality of the graphs on a display unit (7), and to sequentially update the sensitivity model, and a file creation unit (535) configured to a user to designate a position on the displayed gr
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: April 16, 2024
    Assignee: SHIMADZU CORPORATION
    Inventors: Yuki Ishikawa, Yusuke Tagawa
  • 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: D1054072
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: December 10, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Atsushi Yoshida, Yuki Ishikawa, Yasunori Kawano