Patents by Inventor Takashi KAMIZONO

Takashi KAMIZONO 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).

  • Patent number: 12163057
    Abstract: Provided are: a surface treatment liquid with which it is possible to conduct a surface treatment of an object to be treated, so that water, upon contact with the treated surface, rapidly spreads on and wets the surface; a surface treatment method for treating an object using the surface treatment liquid; and a method for producing a roll-shaped sheet which has been surface-treated by the surface treatment method. The surface treatment liquid comprises a polymer (A) and a solvent(S), wherein the polymer (A) comprises a constituent unit (a1) which is derived from a monomer having a log P value of 0.5 or less and which has a hydrophilic group and a constituent unit (a2) derived from a monomer that gives a homopolymer having a glass transition temperature (Tg) of 120° C. or higher, and the polymer (A) has a weight-average molecular weight of 500-20,000.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: December 10, 2024
    Assignee: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Takahiro Senzaki, Takashi Kamizono
  • Publication number: 20240336882
    Abstract: A chip for cell culture, including a laminate having a flow path structure inside, in which respective members constituting respective layers of the laminate are adhered by adhesive layers, and the adhesive layer includes a first adhesive layer formed of an adhesive that contains a polyester-based resin having a glass transition temperature of 37° C. or higher and 120° C. or lower.
    Type: Application
    Filed: August 25, 2022
    Publication date: October 10, 2024
    Inventors: Takashi KAMIZONO, Takashi FUJIMOTO, Takafumi AKABANE, Taku SATOH, Hiroyuki MORIGUCHI
  • Publication number: 20240327771
    Abstract: A chip for cell culture, including a laminate having a flow path structure inside, in which the laminate includes a bottom plate substrate, a flow path substrate in which a flow path is formed by laser processing, and a top plate substrate in this order, and the flow path substrate includes a resin having a glass transition temperature of 37° C. or higher, an elastic modulus at 25° C. of 1×109 Pa or more, and an elastic modulus at 150° C. of 1×107 Pa or less.
    Type: Application
    Filed: August 25, 2022
    Publication date: October 3, 2024
    Inventors: Takahiro YOSHIOKA, Takashi FUJIMOTO, Takashi KAMIZONO, Takafumi AKABANE, Taku SATOH, Hiroyuki MORIGUCHI
  • Publication number: 20210395539
    Abstract: Provided are: a surface treatment liquid with which it is possible to conduct a surface treatment of an object to be treated, so that water, upon contact with the treated surface, rapidly spreads on and wets the surface; a surface treatment method for treating an object using the surface treatment liquid; and a method for producing a roll-shaped sheet which has been surface-treated by the surface treatment method. The surface treatment liquid comprises a polymer (A) and a solvent (S), wherein the polymer (A) comprises a constituent unit (a1) which is derived from a monomer having a log P value of 0.5 or less and which has a hydrophilic group and a constituent unit (a2) derived from a monomer that gives a homopolymer having a glass transition temperature (Tg) of 120° C. or higher, and the polymer (A) has a weight-average molecular weight of 500-20,000.
    Type: Application
    Filed: September 12, 2019
    Publication date: December 23, 2021
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Takahiro SENZAKI, Takashi KAMIZONO
  • Patent number: 11204551
    Abstract: A resist composition containing a resin component having a structural unit represented by general formula (a0-1), and a compound represented by general formula (b1). In general formula (a0-1), R is a hydrogen atom, an alkyl group, or a halogenated alkyl group, Va1 is a divalent hydrocarbon group, na1 represents an integer of 0 to 2, Ya0 is a carbon atom, Xa0 is a group forming a monocyclic aliphatic hydrocarbon group together with Ya0, and Ra00 is an aromatic hydrocarbon group or a specific unsaturated hydrocarbon group. In general formula (b1), Rb1 represents a cyclic hydrocarbon group, Yb1 represents a divalent linking group containing an ester bond, Vb1 represents an alkylene group, a fluorinated alkylene group, or a single bond, and Mm+ is an m-valent organic cation.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: December 21, 2021
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Masahito Yahagi, Issei Suzuki, Yuki Fukumura, Toshikazu Takayama, Takashi Kamizono, Tatsuya Fujii
  • Patent number: 11198772
    Abstract: To provide a surface treatment liquid capable of making a base material including polyorganosiloxane on at least a part of a surface thereof hydrophilic stably over a long period of time, and provide a surface treatment method using the surface treatment liquid. In a surface treatment liquid including (A) resin and a (B) solvent, as the (A) resin, resin having a functional group I that is a hydroxyl group and/or a cyano group is used, and a functional group II that is a hydrophilic group other than the functional group I, and a ratio of a structural unit having an anionic group to total structural units of the (A) resin is 5 mol % or less, or resin including a cationic group including an anion moiety and a cation moiety that can be bonded to the (A) resin is used.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: December 14, 2021
    Assignee: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Takashi Kamizono, Takahiro Senzaki, Takuya Noguchi
  • Patent number: 11167540
    Abstract: A method for manufacturing a flow path device internally provided with a flow path for allowing a liquid to flow by compression bonding two or more members to each other, in which the hydrophilic property of a surface of the flow path can be maintained for a long period of time. A flow path device is manufactured by forming a hydrophilic coating film using a treatment liquid including a hydrophilizing agent in at least one member, the coating film covering a surface of the member at a side to be joined to another member, then irradiating only a joining surface of the coating film with ultraviolet rays or plasma derived from an oxygen-containing gas in the member having the coating film, and irradiating at least the joining surface with ultraviolet rays or plasma derived from an oxygen-containing gas in a member having no coating film, and compression bonding the two or more members.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: November 9, 2021
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takashi Kamizono, Takashi Fujimoto, Takahiro Senzaki
  • Patent number: 11066531
    Abstract: An object is to provide a surface treatment liquid which can firmly bond, while coating the surface of a treatment target with an extremely thin film, a coating whose hydrophilicity is unlikely to be lowered even when the coating is brought into contact with fats and the like to the surface of the treatment target and a surface treatment method using the surface treatment liquid described above. In a surface treatment liquid containing a resin (A) and a solvent (S), as the resin (A), a resin is used which includes a constituent unit (a1) that includes an organic group including a quaternary ammonium cation group and having a sulfonic acid anion group at a terminal and that is derived from an N-substituted (meth) acrylamide, and includes a reactive silyl group in at least one of molecular chain terminals, the concentration of the resin (A) in the surface treatment liquid is less than 2 mass % and the pH of the surface treatment liquid is 4 or less.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: July 20, 2021
    Assignee: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Takahiro Senzaki, Takashi Kamizono
  • Patent number: 11041086
    Abstract: An object is to provide a hydrophilic treatment method which can firmly bond, while coating the surface of a treatment target with an extremely thin film, the coating to the surface of the treatment target and a surface treatment liquid which can be suitably used in the hydrophilic treatment method. In a hydrophilic treatment method using a surface treatment liquid containing a resin (A) and a solvent (S), the surface treatment liquid which includes, as the resin (A), a constituent unit (a1) derived from an N-substituted (meth) acrylamide having a hydrophilic group, which contains, in at least one of molecular chain terminals, a resin including a reactive silyl group and pH of the liquid is 4 or less is used, and thus a coating is formed on the surface of a treatment target.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: June 22, 2021
    Assignee: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Takahiro Senzaki, Takashi Kamizono
  • Publication number: 20200361198
    Abstract: A method for manufacturing a flow path device internally provided with a flow path for allowing a liquid to flow by compression bonding two or more members to each other, in which the hydrophilic property of a surface of the flow path can be maintained for a long period of time. A flow path device is manufactured by forming a hydrophilic coating film using a treatment liquid including a hydrophilizing agent in at least one member, the coating film covering a surface of the member at a side to be joined to another member, then irradiating only a joining surface of the coating film with ultraviolet rays or plasma derived from an oxygen-containing gas in the member having the coating film, and irradiating at least the joining surface with ultraviolet rays or plasma derived from an oxygen-containing gas in a member having no coating film, and compression bonding the two or more members.
    Type: Application
    Filed: May 1, 2020
    Publication date: November 19, 2020
    Inventors: Takashi Kamizono, Takashi Fujimoto, Takahiro Senzaki
  • Patent number: 10557533
    Abstract: A linear motion mechanism with precise linear motion has structural robustness and allows easy reduction in weight and size, simple production and easy operation. The linear motion mechanism includes: an elastic arrangement which is arranged to transform an input direction and an input displacement to an output direction and an output displacement, wherein the output direction is orthogonal to the input direction; an operating member which is arranged to deform the elastic arrangement in the input direction by the input displacement; and a movable member fixed to the elastic arrangement to move in the output direction by the output displacement.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: February 11, 2020
    Assignee: NEC Corporation
    Inventors: Minoru Kurose, Kazuo Hamada, Yoshihiko Katsuyama, Takashi Kamizono, Takuro Kobayashi, Naoto Tanimichi, Tsui Happy
  • Publication number: 20200017652
    Abstract: An object is to provide a surface treatment liquid which can firmly bond, while coating the surface of a treatment target with an extremely thin film, a coating whose hydrophilicity is unlikely to be lowered even when the coating is brought into contact with fats and the like to the surface of the treatment target and a surface treatment method using the surface treatment liquid described above. In a surface treatment liquid containing a resin (A) and a solvent (S), as the resin (A), a resin is used which includes a constituent unit (a1) that includes an organic group including a quaternary ammonium cation group and having a sulfonic acid anion group at a terminal and that is derived from an N-substituted (meth) acrylamide, and includes a reactive silyl group in at least one of molecular chain terminals, the concentration of the resin (A) in the surface treatment liquid is less than 2 mass % and the pH of the surface treatment liquid is 4 or less.
    Type: Application
    Filed: July 5, 2019
    Publication date: January 16, 2020
    Applicant: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takahiro SENZAKI, Takashi KAMIZONO
  • Publication number: 20200017707
    Abstract: An object is to provide a hydrophilic treatment method which can firmly bond, while coating the surface of a treatment target with an extremely thin film, the coating to the surface of the treatment target and a surface treatment liquid which can be suitably used in the hydrophilic treatment method. In a hydrophilic treatment method using a surface treatment liquid containing a resin (A) and a solvent (S), the surface treatment liquid which includes, as the resin (A), a constituent unit (a1) derived from an N-substituted (meth) acrylamide having a hydrophilic group, which contains, in at least one of molecular chain terminals, a resin including a reactive silyl group and pH of the liquid is 4 or less is used, and thus a coating is formed on the surface of a treatment target.
    Type: Application
    Filed: July 5, 2019
    Publication date: January 16, 2020
    Applicant: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takahiro SENZAKI, Takashi KAMIZONO
  • Patent number: 10394122
    Abstract: A resist composition which generates an acid upon exposure and changes a solubility in a developing solution under an action of the acid, the resist composition containing a base material component whose solubility in the developing solution changes under the action of an acid and an acid generator represented by general formula (b1). In general formula (b-1), Rb1 represents an aromatic hydrocarbon group having at least one alkyl group having 3 or more carbon atoms as a substituent, Yb1 represents a divalent linking group containing an ester bond (—C(?O)—O— or —O—C(?O)—), Vb1 represents an alkylene group, a fluorinated alkylene group, or a single bond, m is an integer of 1 or more, and Mm+ represents an m-valent organic cation.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: August 27, 2019
    Assignee: TOYKO OHKA KOGYO CO., LTD.
    Inventors: Issei Suzuki, Masahito Yahagi, Yuki Fukumura, Kazuaki Ebisawa, Yoshitaka Komuro, Toshikazu Takayama, Takashi Kamizono, Tatsuya Fujii
  • Patent number: 10324377
    Abstract: A resist composition which generates acid upon exposure and exhibits changed solubility in a developing solution under action of acid, including a base component which exhibits changed solubility in a developing solution under action of acid and an acid diffusion control agent, the base component including a structural unit represented by general formula (a0-1) shown below in which R represents H, C1-C5 alkyl group or C1-C5 halogenated alkyl group; Ya represents C; Xa represents a group which forms a divalent cyclic hydrocarbon group with Ya; Ra01 to Ra03 represents H, C1-C10 monovalent saturated chain hydrocarbon group or C3-C20 monovalent saturated cyclic hydrocarbon group; the acid diffusion control agent containing an acid which exhibits an acid dissociation constant of 1.5 or more.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: June 18, 2019
    Assignee: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Taku Hirayama, Daisuke Kawana, Yoshitaka Komuro, Masatoshi Arai, Shogo Matsumaru, Kenta Suzuki, Takashi Kamizono, Tatsuya Fujii
  • Publication number: 20190127541
    Abstract: To provide a surface treatment liquid capable of making a base material including polyorganosiloxane on at least a part of a surface thereof hydrophilic stably over a long period of time, and provide a surface treatment method using the surface treatment liquid. In a surface treatment liquid including (A) resin and a (B) solvent, as the (A) resin, resin having a functional group I that is a hydroxyl group and/or a cyano group is used, and a functional group II that is a hydrophilic group other than the functional group I, and a ratio of a structural unit having an anionic group to total structural units of the (A) resin is 5 mol % or less, or resin including a cationic group including an anion moiety and a cation moiety that can be bonded to the (A) resin is used.
    Type: Application
    Filed: October 29, 2018
    Publication date: May 2, 2019
    Applicant: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takashi KAMIZONO, Takahiro SENZAKI, Takuya NOGUCHI
  • Publication number: 20190127540
    Abstract: To provide a surface treatment method capable of successfully making a treatment target including polyimide on a surface thereof hydrophilic or hydrophobic with a safe operation; a two-liquid type surface treatment liquid that can be suitably used for the surface treatment method; and a surface-treated polyimide product that can be obtained by the above-described surface treatment method. A first resin having a primary amino group and/or a hydroxyl group, and a secondary amino group is bonded to a surface of a treatment target including polyimide on a surface thereof, and then a second resin having a (meth)acryloyl group and/or a carbamoyl group, a hydrophilic group and/or a hydrophobic group is bonded to the first resin.
    Type: Application
    Filed: October 29, 2018
    Publication date: May 2, 2019
    Applicant: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takahiro SENZAKI, Takashi KAMIZONO, Takuya NOGUCHI
  • Patent number: 10261416
    Abstract: A resist composition which generates an acid upon exposure and whose solubility in a developing solution changes under the action of an acid, including a base material including a copolymer having a structural unit represented by general formula (a9-1) or a structural unit represented by general formula (a9-2), 30 mol % or more of a structural unit represented by general formula (a10-1) and 45 mol % or more of a structural unit having an acid-decomposable group which increases a polarity under the action of an acid. In each formula, Rs is a hydrogen atom or the like; Ya91 and YaX1 are a single bond or a divalent linking group; R91 is a hydrocarbon group having 1 to 20 carbon atoms or the like; R92 is an oxygen atom or the like; j and nax1 are integers of 1 to 3; Wax1 is a (nax1+1)-valent aromatic hydrocarbon group.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: April 16, 2019
    Assignee: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Tomotaka Yamada, Takashi Kamizono, Yuki Fukumura, Tatsuya Fujii
  • Patent number: 10241406
    Abstract: A resist composition containing a resin component having a structural unit represented by general formula (a0-1), and a compound represented by general formula (b1). In general formula (a0-1), R is a hydrogen atom, an alkyl group, or a halogenated alkyl group. Va1 is a divalent hydrocarbon group. na1 represents an integer of 0 to 2. Ra?12 and Ra?13 are a monovalent chain saturated hydrocarbon group having 1 to 10 carbon atoms or a hydrogen atom. Ra?14 is a phenyl group, a naphthyl group, or an anthryl group. In general formula (b1), Rb1 represents a cyclic hydrocarbon group. Yb1 represents a divalent linking group containing an ester bond. Vb1 represents an alkylene group, a fluorinated alkylene group, or a single bond. m is an integer of 1 or more, and Mm+ is an m-valent organic cation.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: March 26, 2019
    Assignee: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Masahito Yahagi, Issei Suzuki, Yuki Fukumura, Toshikazu Takayama, Takashi Kamizono, Tatsuya Fujii
  • Patent number: 10161561
    Abstract: A linkage rod including a limited-displacement flexible mechanism has structural robustness and allows easy reduction in weight and size, simple production and easy operation. The linkage rod including at least one limited-displacement flexible mechanism, wherein the limited-displacement flexible mechanism comprises at least one limited-displacement flexible joint which comprises: a flexible member; and at least one bend limitation section which is arranged in parallel with the flexible member so that the bend limitation section limits a bend of the flexible member.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: December 25, 2018
    Assignee: NEC Corporation
    Inventors: Minoru Kurose, Kazuo Hamada, Yoshihiko Katsuyama, Takashi Kamizono, Takuro Kobayashi, Naoto Tanimichi, Tsui Happy