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).
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Publication number: 20240116004Abstract: 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: ApplicationFiled: April 15, 2022Publication date: April 11, 2024Applicant: Toray Industries, Inc.Inventors: Kyohei Yamashita, Hiroshi Takahashi
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Patent number: 11951795Abstract: 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: GrantFiled: June 10, 2021Date of Patent: April 9, 2024Assignees: Sumitomo Riko Company Limited, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuki Matsumoto, Kyohei Yamashita, Shinya Iwahori
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Publication number: 20230403793Abstract: 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: ApplicationFiled: October 27, 2021Publication date: December 14, 2023Applicant: KYOCERA CorporationInventors: Yuki TAKESHIMA, Yoshihiro HOSOI, Yuji KAMASE, Kyohei YAMASHITA
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Patent number: 11823966Abstract: 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: GrantFiled: November 29, 2019Date of Patent: November 21, 2023Assignee: KYOCERA CORPORATIONInventors: Kyohei Yamashita, Yoshihiro Hosoi
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Patent number: 11591426Abstract: 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: GrantFiled: September 29, 2020Date of Patent: February 28, 2023Assignee: TORAY INDUSTRIES, INC.Inventors: Kyohei Yamashita, Takeshi Ishigaki, Masataka Nakamura
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Publication number: 20220362742Abstract: 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: ApplicationFiled: October 2, 2020Publication date: November 17, 2022Inventors: Kyohei Yamashita, Shungo Kanda, Hiroshi Takahashi
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Publication number: 20220037220Abstract: 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: ApplicationFiled: November 29, 2019Publication date: February 3, 2022Applicant: KYOCERA CorporationInventors: Kyohei YAMASHITA, Yoshihiro HOSOI
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Publication number: 20210396515Abstract: 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: ApplicationFiled: September 30, 2019Publication date: December 23, 2021Applicant: TOKYO ELECTRIC POWER SERVICES CO., LTD.Inventors: Tatsuto Kimura, Toshimichi Kaneto, Kyohei Yamashita
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Publication number: 20210015960Abstract: 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: ApplicationFiled: September 29, 2020Publication date: January 21, 2021Applicant: Toray Industries, Inc.Inventors: Kyohei Yamashita, Takeshi Ishigaki, Masataka Nakamura
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Publication number: 20200022799Abstract: 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: ApplicationFiled: March 30, 2018Publication date: January 23, 2020Inventors: Kyohei Yamashita, Koji Kadowaki, Kazuhiro Tanahashi, Nobuaki Tanaka, Satoshi Yamada, Hiroshi Tsuchikura
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Publication number: 20190099511Abstract: 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: ApplicationFiled: March 17, 2017Publication date: April 4, 2019Applicant: Toray Industries, Inc.Inventors: Kyohei Yamashita, Takeshi Ishigaki, Masataka Nakamura