Patents by Inventor Nobuhiko Inui

Nobuhiko Inui 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: 20240141222
    Abstract: The heat-conducting resin sheet according to an aspect of the present invention comprises a thermally conductive plate-shaped particle, a thermally conductive spherical particle, and a resin, wherein the heat-conducting resin sheet has a thermal conductivity of 5 W/m·K or more and a 30% compressive strength B of 1500 kPa or less as measured at a compression rate of 1.0 mm/min. Furthermore, a volume ratio of the thermally conductive plate-shaped particle to the thermally conductive spherical particle (volume of thermally conductive plate-shaped particle/volume of thermally conductive spherical particle) is 30/70 to 90/10, and the total volume of the thermally conductive plate-shaped particle and the thermally conductive spherical particle is 30 to 90% by volume. According to the present invention, there can be provided a heat-conducting resin sheet that is excellent in the thermal conductivity and flexibility and can suppress the increase in the stress even when compressed quickly.
    Type: Application
    Filed: March 10, 2021
    Publication date: May 2, 2024
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yuuki HOSHIYAMA, Kento TSUCHIYA, Nobuhiko INUI
  • Patent number: 11940458
    Abstract: A measurement tool includes: a measurement tool body including a sample collection unit for collecting a liquid sample by a capillary phenomenon, and a liquid feed channel; and a lid body attachable to and detachable from the measurement tool body. The liquid feed channel includes an upstream side channel and a downstream side channel. A space is defined, into which an upstream side end of the sample collection unit and a downstream side end of the upstream side channel open, when the lid body is attached to the measurement tool body. The downstream side channel is connected to a downstream side end of the sample collection unit. The space is open when the lid body is separated from the measurement tool body, and the space is closed and the upstream side channel and the sample collection unit are connected when the lid body is attached to the measurement tool body.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: March 26, 2024
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Tsutomu Nakamura, Kazuhiko Imamura, Nobuhiko Inui, Ryousuke Takahashi
  • Publication number: 20230333070
    Abstract: Provided is an inspection chip with simplified channel switching structure, which is generally complicated.
    Type: Application
    Filed: September 14, 2021
    Publication date: October 19, 2023
    Applicants: SEKISUI CHEMICAL CO., LTD., SEKISUI MEDICAL CO., LTD.
    Inventors: Shoutarou KOBARU, Takamasa KOUNO, Nobuhiko INUI, Kazuhiko IMAMURA, Sou YAMAGUCHI, Katsura UCHIDA, Tatsunori TAKAMATSU
  • Publication number: 20230145735
    Abstract: A microchannel chip (1) includes: a first channel (201); a reagent holder (230); a gas inlet (210) communicating with the first channel; a lid (50) closing the gas inlet; and a second channel (202) provided downstream of the first channel. A specimen holder (240) is provided downstream of the reagent holder (230). When the lid (50) closes the gas inlet (210), gas is supplied to the first channel (201) and pushes out the reagent downstream from the reagent holder (230). Thus, the pushed-out reagent merges with a specimen in the second channel (202).
    Type: Application
    Filed: September 28, 2020
    Publication date: May 11, 2023
    Inventors: Kazuhiko IMAMURA, Nobuhiko INUI
  • Publication number: 20220348858
    Abstract: Provided is a cell culture scaffold material having excellent cell adhesion. The cell culture scaffold material according to the present invention contains a peptide-conjugated polyvinyl alcohol derivative having a polyvinyl alcohol derivative portion and a peptide portion, and the peptide portion has a cyclic peptide skeleton.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 3, 2022
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Daigo KOBAYASHI, Mayumi YUKAWA, Kenta TAKAKURA, Ryoma ISHII, Hiroki IGUCHI, Yuuhei ARAI, Satoshi HANEDA, Nobuhiko INUI
  • Publication number: 20220325221
    Abstract: Provided is a cell culture scaffold material having excellent extensibility of pseudopodia and excellent cell proliferation. The cell culture scaffold material according to the present invention contains a peptide-conjugated polyvinyl alcohol derivative having a polyvinyl alcohol derivative portion and a peptide portion, and has a hydroxyl value of 1,100 mgKOH/g or less.
    Type: Application
    Filed: May 15, 2020
    Publication date: October 13, 2022
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Kenta TAKAKURA, Mayumi YUKAWA, Daigo KOBAYASHI, Ryoma ISHII, Hiroki IGUCHI, Yuuhei ARAI, Satoshi HANEDA, Nobuhiko INUI
  • Publication number: 20220235307
    Abstract: Provided is a cell culture scaffold capable of allowing cell masses to be formed easily and efficiently. A cell culture scaffold according to the present invention includes a substrate; and a protrusion formed by patterning in a pattern of a dot or a line on the substrate, wherein the protrusion contains a synthetic resin, the synthetic resin contains at least a polyvinyl alcohol derivative or a poly(meth)acrylic resin, the protrusion has cell adhesion, and a portion of the protrusion located at the protrusion center position in plan view has an average height of 10 nm or more and 10 ?m or less.
    Type: Application
    Filed: July 31, 2020
    Publication date: July 28, 2022
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yuuhei ARAI, Nobuhiko INUI, Satoshi HANEDA, Hiroki IGUCHI
  • Publication number: 20220226823
    Abstract: Provided is a liquid supply method capable of accurately mixing a plurality of liquids without providing a complicated liquid supply control mechanism. A liquid supply method using an inspection chip 1, the liquid supply method including: a step of supplying a first liquid from an upstream flow path 4A to a combined flow path 7 and making the first liquid wet and spread on a wall surface of the combined flow path 7 to hold the first liquid in the combined flow path 7; a step of supplying a second liquid from the upstream flow path 4A to the combined flow path 7 and combining the first liquid and the second liquid; and a step of supplying the combined first liquid and the second liquid to a mixing flow path 8, and mixing the first liquid and the second liquid.
    Type: Application
    Filed: June 23, 2020
    Publication date: July 21, 2022
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Takamasa KOUNO, Nobuhiko INUI, Tsutomu NAKAMURA, Shoutarou KOBARU, Kazuhiko IMAMURA, Ryousuke TAKAHASHI, Tomoya SASAKI
  • Publication number: 20220227898
    Abstract: Provided is a resin film formed of a cell culture scaffold material, which has excellent fixation of cells after seeding and is capable of enhancing proliferation rate of cells. A resin film formed of a cell culture scaffold material, in which the cell culture scaffold material contains a synthetic resin, and the resin film has phase-separated structure including least a first phase and a second phase, and a ratio of the surface area of one of the first phase and the second phase to the entire surface is 0.01 or more and 0.95 or less.
    Type: Application
    Filed: May 15, 2020
    Publication date: July 21, 2022
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Hiroki IGUCHI, Yuuhei ARAI, Nobuhiko INUI, Mayumi YUKAWA, Daigo KOBAYASHI, Yuuta NAKAMURA, Kenta TAKAKURA, Satoshi HANEDA, Ryoma ISHII
  • Publication number: 20220196693
    Abstract: Provided is a chip that does not require high-accuracy discharge amount control for a liquid delivery pump and can suppress the entrainment of air bubbles.
    Type: Application
    Filed: April 20, 2020
    Publication date: June 23, 2022
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Kazuhiko IMAMURA, Tsutomu NAKAMURA, Nobuhiko INUI, Ryousuke TAKAHASHI
  • Patent number: 11291993
    Abstract: Provided is a micro-fluid chip that enables reducing contamination between branch channels, has a relatively simple channel structure and facilitates miniaturization. A micro-fluid chip (1) having a channel structure (3) through which a fluid is delivered, wherein the channel structure (3) includes: a main channel (4) having an inflow port (5) and an outflow port (6); a plurality of branch channels (11) to (13) connected to the main channel (4), each branch channel having an inflow end on a side connected to the main channel (4) and an outflow end that is an end portion on an opposite side to the inflow end; and a sub-branch channel (14) connected to the main channel (4) between at least one pair of adjacent branch channels (11) and (12) among the plurality of branch channels (11) to (13), the sub-branch channel (14) having an inflow end on a side connected to the main channel (4).
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: April 5, 2022
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Kazuhiko Imamura, Nobuhiko Inui, Shotaro Kobaru, Takamasa Kouno, Tatsunori Takamatsu, Ryoma Ishii, Ryosuke Takahashi, Tsutomu Nakamura
  • Publication number: 20220090048
    Abstract: Provided is a nucleic acid isolation method whereby it becomes possible to extract a nucleic acid in a simple manner without the need to use an alcohol. A nucleic acid isolation method, comprising the steps of: mixing a specimen containing a nucleic acid with an extraction solution to disperse the nucleic acid in the extraction solution; bringing the extraction solution containing the nucleic acid into contact with an anionic adsorbent; bringing a washing solution into contact with the anionic adsorbent; and bringing a collection solution into contact with the anionic adsorbent, the extraction solution containing a protein denaturant, the washing solution containing a basic compound and having a pH value equal to or less than a pKa value of a conjugate acid of the basic compound, and the collection solution having a pH value equal to or more than the pKa value of the conjugate acid of the basic compound.
    Type: Application
    Filed: January 17, 2020
    Publication date: March 24, 2022
    Applicants: SEKISUI CHEMICAL CO., LTD., SEKISUI MEDICAL CO., LTD.
    Inventors: Takamasa KOUNO, Nobuhiko INUI, Tsutomu NAKAMURA, Tomoya SASAKI, Sou YAMAGUCHI, Katsura UCHIDA
  • Publication number: 20210263059
    Abstract: To provide a measurement tool and a liquid feeding method in the measurement tool in which loss of a quantitatively collected liquid sample is unlikely to occur and measurement accuracy may be improved.
    Type: Application
    Filed: November 21, 2019
    Publication date: August 26, 2021
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Tsutomu NAKAMURA, Kazuhiko IMAMURA, Nobuhiko INUI, Ryousuke TAKAHASHI
  • Publication number: 20210239690
    Abstract: Provided is an implement for inspection capable of measuring the concentration of a test substance with high accuracy. The implement for inspection according to the present invention is an implement for inspection used for measuring the concentration of a test substance that includes a compound for reacting with a test substance to form a granular substance or a compound which is for being bound to the test substance and is a granular substance, and a wall portion having a periodic structure on its surface.
    Type: Application
    Filed: April 22, 2021
    Publication date: August 5, 2021
    Inventors: Yoshinori Akagi, Nobuhiko Inui, Kazuhiko Imamura, Takamasa Kouno, Shigeru Nomura, Tatsuro Endo
  • Patent number: 11016087
    Abstract: Provided is an implement for inspection capable of measuring the concentration of a test substance with high accuracy. The implement for inspection according to the present invention is an implement for inspection used for measuring the concentration of a test substance that includes a compound for reacting with a test substance to form a granular substance or a compound which is for being bound to the test substance and is a granular substance, and a wall portion having a periodic structure on its surface.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: May 25, 2021
    Assignees: SEKISUI CHEMICAL CO., LTD., UNIVERSITY PUBLIC CORPORATION OSAKA
    Inventors: Yoshinori Akagi, Nobuhiko Inui, Kazuhiko Imamura, Takamasa Kouno, Shigeru Nomura, Tatsuro Endo
  • Publication number: 20210121881
    Abstract: Provided is a micro fluid device capable of reliably performing measurement of a fluid into a branched flow path and dispensing of a predetermined amount of a fluid into a plurality of the branched flow paths.
    Type: Application
    Filed: May 25, 2018
    Publication date: April 29, 2021
    Inventors: Kazuhiko Imamura, Nobuhiko Inui, Shotaro Kobaru, Takamasa Kouno, Tatsunori Takamatsu, Ryoma Ishii
  • Publication number: 20200276581
    Abstract: Provided is a micro-fluid chip that enables reducing contamination between branch channels, has a relatively simple channel structure and facilitates miniaturization. A micro-fluid chip 1 having a channel structure 3 through which a fluid is delivered, wherein the channel structure 3 includes: a main channel 4 having an inflow port 5 and an outflow port 6; a plurality of branch channels 11 to 13 connected to the main channel 4, each branch channel having an inflow end on a side connected to the main channel 4 and an outflow end that is an end portion on an opposite side to the inflow end; and a sub-branch channel 14 connected to the main channel 4 between at least one pair of adjacent branch channels 11 and 12 among the plurality of branch channels 11 to 13, the sub-branch channel 14 having an inflow end on a side connected to the main channel 4.
    Type: Application
    Filed: November 21, 2018
    Publication date: September 3, 2020
    Inventors: Kazuhiko Imamura, Nobuhiko Inui, Shotaro Kobaru, Takamasa Kouno, Tatsunori Takamatsu, Ryoma Ishii, Ryosuke Takahashi, Tsutomu Nakamura
  • Patent number: 10435533
    Abstract: Provided is a resin composite material having a small number of voids and excellent tenacity. The resin composite material may be one obtained by mixing a carbon material having a graphene structure and having a content of less than 1 weight % of a volatile component volatilizable at 200° C. and a thermoplastic resin. The resin composite material may be a resin composite material including a carbon material having a graphene structure and a thermoplastic resin, the resin composite material containing 5 parts by weight or more of the carbon material per 100 parts by weight of the thermoplastic resin and having a breaking strain of 50% or more as measured according to JIS K 7161.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: October 8, 2019
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Kazuhiro Sawa, Taichi Hamada, Daisuke Mukohata, Nobuhiko Inui
  • Patent number: 10377838
    Abstract: Provided is a resin composite material in which a carbon material with a graphene structure is dispersed in a synthetic resin and which has a high mechanical strength and a low linear expansion coefficient and a method for producing the resin composite material. A resin composite material contains a synthetic resin and a carbon material with a graphene structure dispersed in the synthetic resin, wherein the synthetic resin is grafted onto the carbon material and the grafting ratio thereof onto the carbon material is 5% to 3300% by weight. A method for producing a resin composite material includes the steps of: preparing a resin composite containing a synthetic resin and a carbon material with a graphene structure dispersed in the synthetic resin; and grafting the synthetic resin onto the carbon material concurrently with or after the step of preparing the resin composite.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: August 13, 2019
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Nobuhiko Inui, Daisuke Mukohata, Mitsuru Naruta, Kensuke Tsumura, Kazuhiro Sawa, Katsunori Takahashi, Koji Taniguchi
  • Publication number: 20190240655
    Abstract: The present invention provides a microchip that allows to highly accurately control a transported amount of a fluid. The microchip 1 includes: a container 3 encapsulating a liquid reagent X (fluid) filled in the container 3; and a substrate 2 including an accommodation section 4 in which the container 3 is placed. The accommodation section 4 includes a top surface and a bottom surface 2b. The accommodation section 4 is opened to the top surface of the substrate 2. At least a part of the inflow passage 5 that is connected to the accommodation section 4 and into which a medium for transporting the liquid reagent X flows is provided on the substrate 2. At least a part of the outflow passage 6 that is connected to the accommodation section 4 and through which the liquid reagent X flows out is provided on the substrate 2. The microchip 1 further includes a sheet member 7 that is provided on the top surface of the substrate 2 so as to close the opening of the accommodation section 4.
    Type: Application
    Filed: September 7, 2017
    Publication date: August 8, 2019
    Inventors: Tatsunori Takamatsu, Nobuhiko Inui, Shotaro Kobaru, Takamasa Kouno