Patents by Inventor Kyohei Yamashita

Kyohei Yamashita 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: 20240116004
    Abstract: A blood treatment material has both the water permeability to allow removal of water from the blood and the ability to highly efficiently adsorb and remove, for example, inflammatory cells and inflammatory cytokines. The blood treatment material includes a hollow fiber membrane having a surface modified with a ligand containing an amino group(s), wherein the arithmetic mean roughness (RaA) of the blood-contacting surface of the hollow fiber membrane in the radial direction calculated by using a laser microscope is 0.10 ?m to 0.80 ?m.
    Type: Application
    Filed: April 15, 2022
    Publication date: April 11, 2024
    Applicant: Toray Industries, Inc.
    Inventors: Kyohei Yamashita, Hiroshi Takahashi
  • Patent number: 11951795
    Abstract: In a suspension bush in which an intermediate member is arranged between an inner shaft member and an outer tube member that are connected by a main body rubber elastic body, a central portion in the axial direction of the inner shaft member includes an inner bulging portion projecting toward the outer periphery, the outer tube member includes an outer curved portion concave toward the inner periphery, and the intermediate member includes an intermediate curved portion concave toward the inner periphery. The main body rubber elastic body is pre-compressed by diameter reduction of the outer tube member, an inclination angle of both axial end parts of the outer curved portion with respect to the axial direction is increased by diameter reduction of the outer tube member 14, and both axial end parts of the outer curved portion are pressed against axial end portions of the main body rubber elastic body.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: April 9, 2024
    Assignees: Sumitomo Riko Company Limited, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuki Matsumoto, Kyohei Yamashita, Shinya Iwahori
  • Publication number: 20230403793
    Abstract: A wiring board includes an insulation substrate, a through-conductor, and a wiring conductor. The insulation substrate includes a first surface, a second surface opposite to the first surface, and a through-hole extending from the first surface to the second surface. The through-conductor is located in the through-hole and on an opening of the through-hole on a first surface side. The wiring conductor is located on the first surface and connected to the through-conductor. The through-conductor and the wiring conductor contain copper as a main component. The average size of Cu crystal grains in the through-conductor is larger than the average size of Cu crystal grains in the wiring conductor.
    Type: Application
    Filed: October 27, 2021
    Publication date: December 14, 2023
    Applicant: KYOCERA Corporation
    Inventors: Yuki TAKESHIMA, Yoshihiro HOSOI, Yuji KAMASE, Kyohei YAMASHITA
  • Patent number: 11823966
    Abstract: A wiring substrate includes an insulating substrate, a conductor layer and an interlayer. The insulating substrate contains AlN. The conductor layer contains Cu. The interlayer is located between the insulating substrate and the conductor layer. In the interlayer, between a first region near the insulating substrate and a second region near the conductor layer, Cu concentration is higher in the second region than in the first region, and Al concentration is higher in the first region than in the second region.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: November 21, 2023
    Assignee: KYOCERA CORPORATION
    Inventors: Kyohei Yamashita, Yoshihiro Hosoi
  • Patent number: 11591426
    Abstract: Disclosed are: a polymer for treating the surface of a medical device such as a contact lens to suppress the reduction in lubricity of the device even when the device is scrubbed; a medical device having the polymer on the surface so that the reduction in lubricity over time is suppressed; and a wetting agent containing the polymer. The polymer for treating the surface is a copolymer which is water-soluble and includes as constitutional units the following monomers A and B: monomer A: a monomer containing a (meth)acryloyl group and an ester or amide structure in a molecule, in which the ester or amide structure is not constituted by including a part of the (meth)acryloyl group; monomer B: a monomer containing a (meth)acrylamide group in a molecule and having a structure different from that of the monomer A.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: February 28, 2023
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Kyohei Yamashita, Takeshi Ishigaki, Masataka Nakamura
  • Publication number: 20220362742
    Abstract: A blood treatment material adsorbs and removes blood components such as activated leukocytes and inflammatory cytokines with a high efficiency. The blood treatment material includes a water-insoluble material in the form of fibers or particles, wherein the difference between the maximum value (RaA) and the minimum value (RaB) of the arithmetic average roughness (Ra) of the surface of the water-insoluble material, as calculated using a laser microscope, is from 0.30 to 1.50 ?m.
    Type: Application
    Filed: October 2, 2020
    Publication date: November 17, 2022
    Inventors: Kyohei Yamashita, Shungo Kanda, Hiroshi Takahashi
  • Publication number: 20220037220
    Abstract: A wiring substrate includes an insulating substrate, a conductor layer and an interlayer. The insulating substrate contains AlN. The conductor layer contains Cu. The interlayer is located between the insulating substrate and the conductor layer. In the interlayer, between a first region near the insulating substrate and a second region near the conductor layer, Cu concentration is higher in the second region than in the first region, and Al concentration is higher in the first region than in the second region.
    Type: Application
    Filed: November 29, 2019
    Publication date: February 3, 2022
    Applicant: KYOCERA Corporation
    Inventors: Kyohei YAMASHITA, Yoshihiro HOSOI
  • Publication number: 20210396515
    Abstract: A prediction portion predicts states including a water level of the wave at a prediction subject location. In a case in which inputs of the flow velocity in a line-of-sight direction of the wave at each observation location have been received, an estimation portion estimates states of waves including the water level thereof at the prediction subject location. The estimation of the states is based on a difference between the flow velocity in a line-of-sight direction of the wave at each input observation location, and the flow velocity in a line-of-sight direction of the wave at each input observation location obtained by converting states of the wave using an observation matrix. A determination portion causes the predictions of the states and the estimation of the states to be repeated until predetermined conditions have been satisfied.
    Type: Application
    Filed: September 30, 2019
    Publication date: December 23, 2021
    Applicant: TOKYO ELECTRIC POWER SERVICES CO., LTD.
    Inventors: Tatsuto Kimura, Toshimichi Kaneto, Kyohei Yamashita
  • Publication number: 20210015960
    Abstract: Disclosed are: a polymer for treating the surface of a medical device such as a contact lens to suppress the reduction in lubricity of the device even when the device is scrubbed; a medical device having the polymer on the surface so that the reduction in lubricity over time is suppressed; and a wetting agent containing the polymer. The polymer for treating the surface is a copolymer which is water-soluble and includes as constitutional units the following monomers A and B: monomer A: a monomer containing a (meth)acryloyl group and an ester or amide structure in a molecule, in which the ester or amide structure is not constituted by including a part of the (meth)acryloyl group; monomer B: a monomer containing a (meth)acrylamide group in a molecule and having a structure different from that of the monomer A.
    Type: Application
    Filed: September 29, 2020
    Publication date: January 21, 2021
    Applicant: Toray Industries, Inc.
    Inventors: Kyohei Yamashita, Takeshi Ishigaki, Masataka Nakamura
  • Publication number: 20200022799
    Abstract: A tubular structure has succeeded in achieving excellent puncture resistance as well as maintenance of flexibility in a base by covering the base with a cover having excellent flexibility. The tubular structure includes a tubular base and a cover which covers the base, wherein the cover includes a copolymer containing a silicone monomer and a polymerizable monomer having a fluoroalkyl group(s) as monomer units.
    Type: Application
    Filed: March 30, 2018
    Publication date: January 23, 2020
    Inventors: Kyohei Yamashita, Koji Kadowaki, Kazuhiro Tanahashi, Nobuaki Tanaka, Satoshi Yamada, Hiroshi Tsuchikura
  • Publication number: 20190099511
    Abstract: Disclosed are: a polymer for treating the surface of a medical device such as a contact lens to suppress the reduction in lubricity of the device even when the device is scrubbed; a medical device having the polymer on the surface so that the reduction in lubricity over time is suppressed; and a wetting agent containing the polymer. The polymer for treating the surface is a copolymer which is water-soluble and includes as constitutional units the following monomers A and B: monomer A: a monomer containing a (meth)acryloyl group and an ester or amide structure in a molecule, in which the ester or amide structure is not constituted by including a part of the (meth)acryloyl group; monomer B: a monomer containing a (meth)acrylamide group in a molecule and having a structure different from that of the monomer A.
    Type: Application
    Filed: March 17, 2017
    Publication date: April 4, 2019
    Applicant: Toray Industries, Inc.
    Inventors: Kyohei Yamashita, Takeshi Ishigaki, Masataka Nakamura