Patents by Inventor Ryohei Koguchi

Ryohei Koguchi 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: 20200346972
    Abstract: The present invention relates to a base material that comes into contact with water and contains a base material main body and a surface layer provided on at least a part of a surface that comes into contact with water of the base material main body, (1) in which the surface layer is composed of a cured product of a composition containing a compound having a biocompatible moiety and a reactive silyl group, the biocompatible moiety has a specific structure, the composition has a content of the biocompatible moiety being 25 to 83% by mass and a content of the reactive silyl group being 2 to 70% by mass, in a solid component, or (2) in which the surface layer has an elastic modulus showing a measured value in water being 0.1% to 63% with respect to a measured value after drying in the air.
    Type: Application
    Filed: July 17, 2020
    Publication date: November 5, 2020
    Applicant: AGO Inc
    Inventors: Hajime EGUCHI, Kyoko YAMAMOTO, Ryohei KOGUCHI, Yosuke AMINO, Noriko TANABE
  • Publication number: 20200330653
    Abstract: To provide a medical device, whereby the non-specific absorption amount is reduced, its durability is excellent and eluents from the surface layer are reduced. The medical device comprises a device substrate and a surface layer provided on at least part of the surface of the device substrate in contact with water, wherein at least part of the surface of the device substrate is made of an inorganic material, the surface layer is made of a cured product of a compound having a biocompatible group and an alkoxysilyl group, the content of the biocompatible group in the compound is from 25 to 83% by mass, and the content of the alkoxysilyl group is from 2 to 70% by mass.
    Type: Application
    Filed: July 1, 2020
    Publication date: October 22, 2020
    Applicant: AGC Inc.
    Inventors: Ryohei Koguchi, Hajime Eguchi, Kyoko Yamamoto
  • Publication number: 20200299626
    Abstract: To provide a cell culture container capable of preparing spheroids having a uniform size highly efficiently, and capable of microscopic observation simply, particularly fluorescence microscopic observation. A cell culture container comprising: side walls forming an opening, a bottom comprising a light-transmitting glass material, closing the lower end of the opening and having a plurality of recesses in a region which the opening faces on its upper surface, and a surface layer inhibiting cell adhesion formed on the inner surface of the recesses.
    Type: Application
    Filed: June 8, 2020
    Publication date: September 24, 2020
    Applicant: AGC Inc.
    Inventors: Ryohei KOGUCHI, Hajime EGUCHI, Lijun ZHU, Kyoko YAMAMOTO
  • Publication number: 20190077966
    Abstract: To provide a protein adhesion inhibitor from which a cured product having excellent protein non-adhesion and having excellent form stability so that a film formed therefrom will not warp, can be formed, a cured product using it, and an article. A protein adhesion inhibitor comprising a non-polymerizable fluorinated polymer having a specific group such as —(CnH2nO)— and a fluorine atom content QF of from 5 to 60 mass %, and at least one curable monomer selected from the group consisting of a vinyl monomer and a cyclic ether monomer, wherein the coefficient ? is at most 10. A cured product of the protein adhesion inhibitor. A medical device 1 comprising a substrate 2 and a coating layer 3 formed of the cured product of the protein adhesion inhibitor on the substrate 2.
    Type: Application
    Filed: November 13, 2018
    Publication date: March 14, 2019
    Applicant: AGC Inc.
    Inventors: Ryohei KOGUCHI, Kyoko Yamamoto
  • Patent number: 10138312
    Abstract: To provide an inhibitor for inhibiting protein adhesion capable of easily forming a coating layer which is excellent in water resistance, from which coating components are less likely to be eluted, on which protein is less likely to be adsorbed and which is excellent in biocompatibility; a coating solution; a medical device having a coating layer employing this inhibitor for inhibiting protein adhesion; a method for producing the same; and a fluoropolymer to be used in this inhibitor for inhibiting protein adhesion. A compound for inhibiting protein adhesion comprising a fluoropolymer that has units having a biocompatible group, a fluorine atom content of from 5 to 60 mass % and a proportion P represented by the following formula of from 0.1 to 4.5%. (Proportion P)=((proportion (mass %) of units having a biocompatible group to all units of the fluoropolymer))/(fluorine atom content (mass %) of the fluoropolymer))×100.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: November 27, 2018
    Assignee: AGC Inc.
    Inventors: Ryohei Koguchi, Kyoko Yamamoto, Yuriko Kaida, Tohru Itoh, Aya Wada, Hajime Eguchi
  • Publication number: 20180298178
    Abstract: To provide a resin composition which is used to coat the substrate surface, thereby to selectively trap a variety of target substances via a ligand which specifically binds to the target substances on the substrate surface.
    Type: Application
    Filed: June 19, 2018
    Publication date: October 18, 2018
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Hiroki SATO, Tatsuaki MIWA, Alimjan IDIRIS, Ryohei KOGUCHI, Kyoko YAMAMOTO, Hajime EGUCHI
  • Publication number: 20180296988
    Abstract: To provide a cell-trapping filter which has a high cell trapping efficiency and which is excellent in water resistance. A cell-trapping filter comprising a substrate and a cell-separating mechanism by size, wherein the substrate has, at least on its surface, a layer formed of a fluorinated polymer having units having a biocompatible group, having a fluorine atom content of from 5 to 60 mass % and having a proportion P represented by the following formula of from 0.
    Type: Application
    Filed: June 21, 2018
    Publication date: October 18, 2018
    Applicants: Asahi Glass Company, Limited, National University Corporation Nagoya University
    Inventors: Naoto KIHARA, Ryohei KOGUCHI, Hajime EGUCHI, Masaru HORI, Hiromasa TANAKA, Kenji ISHIKAWA, Yoshinobu BABA, Hiroshi YUKAWA, Daisuke ONOSHIMA, Tetsunari HASE, Daiki KUBOYAMA
  • Publication number: 20170101497
    Abstract: To provide an inhibitor for inhibiting protein adhesion capable of easily forming a coating layer which is excellent in water resistance, from which coating components are less likely to be eluted, on which protein is less likely to be adsorbed and which is excellent in biocompatibility; a coating solution; a medical device having a coating layer employing this inhibitor for inhibiting protein adhesion; a method for producing the same; and a fluoropolymer to be used in this inhibitor for inhibiting protein adhesion. A compound for inhibiting protein adhesion comprising a fluoropolymer that has units having a biocompatible group, a fluorine atom content of from 5 to 60 mass % and a proportion P represented by the following formula of from 0.1 to 4.5%. (Proportion P)=((proportion (mass %) of units having a biocompatible group to all units of the fluoropolymer))/(fluorine atom content (mass %) of the fluoropolymer))×100.
    Type: Application
    Filed: December 21, 2016
    Publication date: April 13, 2017
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Ryohei KOGUCHI, Kyoko Yamamoto, Yuriko Kaida, Tohru Itoh, Aya Wada, Hajime Eguchi
  • Patent number: 8711300
    Abstract: In a process for producing a liquid crystal element comprising an alignment-treated substrate and a layer of polymer liquid crystal having a pattern, mesogenic groups in cross-linkable polymer liquid crystal are aligned, and the cross-linkable polymer liquid crystal is cross-linked while the mold is pressed against the layer of cross-linkable polymer liquid crystal, at a temperature higher than the glass transition temperature of the cross-linkable polymer liquid crystal and lower than the clearing point temperature of the cross-linkable polymer liquid crystal.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: April 29, 2014
    Assignee: Asahi Glass Company, Limited
    Inventors: Yuji Yamamoto, Yuriko Kaida, Ryohei Koguchi, Hiroshi Sakamoto
  • Publication number: 20130016318
    Abstract: In a process for producing a liquid crystal element comprising an alignment-treated substrate and a layer of polymer liquid crystal having a pattern, mesogenic groups in cross-linkable polymer liquid crystal are aligned, and the cross-linkable polymer liquid crystal is cross-linked while the mold is pressed against the layer of cross-linkable polymer liquid crystal, at a temperature higher than the glass transition temperature of the cross-linkable polymer liquid crystal and lower than the clearing point temperature of the cross-linkable polymer liquid crystal.
    Type: Application
    Filed: September 10, 2012
    Publication date: January 17, 2013
    Applicant: Ashai Glass Company, Ltd.
    Inventors: Yuji Yamamoto, Yuriko Kaida, Ryohei Koguchi, Hiroshi Sakamoto
  • Publication number: 20120171442
    Abstract: A laminate of the present invention includes a first transparent resin layer, a first polymer liquid crystal layer, a second transparent resin layer, and a second polymer liquid crystal layer. A process for producing the laminate involves curing a resin to form the first transparent resin layer with certain liquid crystal alignment properties. The process then involves forming the first liquid crystal layer from a curable liquid crystalline monomer or a crosslinkable polymer liquid crystal on the first transparent resin layer. The first liquid crystal layer has the liquid crystal alignment properties of the first transparent resin layer. Next, the process involves forming a second transparent resin layer with different liquid crystal alignment properties on the first polymer liquid crystal layer, then forming a second polymer liquid crystal layer on the second transparent resin layer in the same manner.
    Type: Application
    Filed: January 12, 2012
    Publication date: July 5, 2012
    Applicant: Asahi Glass Company, Limited
    Inventors: Yuji YAMAMOTO, Yuriko Kaida, Ryohei Koguchi, Hiromi Sakurai