Patents by Inventor Yoshiyuki Oishi

Yoshiyuki Oishi 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: 20240209153
    Abstract: Provided is a fluorine-containing polyamide compound having a specific repeating unit and a fluorine-containing polybenzoxazole having a specific repeating unit.
    Type: Application
    Filed: February 15, 2024
    Publication date: June 27, 2024
    Applicants: DAIKIN INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY
    Inventors: Yoshiyuki OISHI, Tsuyoshi Noguchi
  • Publication number: 20240209148
    Abstract: Provided are a resin composition which has a low dielectric constant, a low dielectric loss tangent, high transparency, high solubility, and high heat resistance and can be used suitably as a low-dielectric material, a film for a multilayer substrate, in which the resin composition is used, a multilayer substrate, and methods for producing the same. A resin composition for a low-dielectric material, which contains a triazine-containing polyether compound having a specific repeating unit, a film for a multilayer substrate, a multilayer substrate, a method for producing a resin composition for a low-dielectric material, a method for producing a film for a multilayer substrate, and a method for producing a multilayer substrate.
    Type: Application
    Filed: March 23, 2022
    Publication date: June 27, 2024
    Inventors: Yoshiyuki OISHI, Yuji SHIBASAKI, Tadashi TSUKAMOTO
  • Publication number: 20240092971
    Abstract: The present disclosure provides a fluorine-containing polyether compound having a repeating unit represented by formula (1). In formula (1), n represents an integer of 1 to 8, Ph represents a phenylene group, X1 represents a heterocyclic ring or a hydrocarbon ring, one or both of two phenylene groups represented by Ph, and the heterocyclic ring or hydrocarbon ring represented by X1 are optionally condensed with each other, and the phenylene group, the heterocyclic ring, and the hydrocarbon ring optionally have a substituent.
    Type: Application
    Filed: November 9, 2023
    Publication date: March 21, 2024
    Applicants: DAIKIN INDUSTRIES, LTD., NATIONAL UNIVERSITYCORPORATION, IWATE UNIVERSITY
    Inventors: Yoshiyuki OISHI, Tsuyoshi Noguchi
  • Patent number: 11932729
    Abstract: A polybenzimidazole production method for producing the polybenzimidazole including a repeating unit represented by the following formula (1): wherein Rf is —SO2—, —O—, —CO—, an alkylene group optionally containing a substituent, or a group represented by the following formula (a): two Xs are each individually a hydrogen atom or a monovalent organic group; and R1 is a divalent organic group, the production method including a step (1-1) of polymerizing a tetramine compound and a dicarboxylic acid derivative compound to provide a polybenzimidazole precursor polyamide, and a step (1-2) of dehydrocyclizing the polybenzimidazole precursor polyamide.
    Type: Grant
    Filed: December 8, 2022
    Date of Patent: March 19, 2024
    Assignees: DAIKIN INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY
    Inventors: Yoshiyuki Oishi, Tsuyoshi Noguchi, Tadashi Kanbara
  • Patent number: 11851529
    Abstract: A triazine ring-containing polymer including a structural unit represented by General Formula 1: *-[A-B-]-*??General Formula 1 wherein, in General Formula 1, A is represented by General Formula 2, B is represented by General Formula 3, and * indicates a point linked to another group or structural unit: wherein, in General Formula 2 and General Formula 3, L, R1 to R6, m1, n1, and * are the same as defined in the detailed description.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: December 26, 2023
    Assignees: SAMSUNG ELECTRONICS CO., LTD., NATIONAL UNIVERSITY CORPORATION IWATE UNIVERSITY
    Inventors: Yoshiyuki Oishi, Eigo Miyazaki, Tomoyuki Kikuchi, Yukika Yamada
  • Patent number: 11655339
    Abstract: A method for producing a polybenzimidazole precursor polyamide including a repeating unit represented by the following formula (2): wherein Rf is —SO2—, —O—, —CO—, an alkylene group optionally containing a substituent, or a group represented by the following formula: two Xs are each individually a monovalent organic group; and R1 is a divalent organic group, the method including: a step (1-1) of polymerizing a tetramine compound (3) and a dicarboxylic acid derivative compound (4) as defined herein to provide the polybenzimidazole precursor polyamide.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: May 23, 2023
    Assignees: DAIKIN INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY
    Inventors: Yoshiyuki Oishi, Tsuyoshi Noguchi, Tadashi Kanbara
  • Publication number: 20230128992
    Abstract: A polybenzimidazole production method for producing the polybenzimidazole including a repeating unit represented by the following formula (1): wherein Rf is —SO2—, —O—, —CO—, an alkylene group optionally containing a substituent, or a group represented by the following formula (a): two Xs are each individually a hydrogen atom or a monovalent organic group; and R1 is a divalent organic group, the production method including a step (1-1) of polymerizing a tetramine compound and a dicarboxylic acid derivative compound to provide a polybenzimidazole precursor polyamide, and a step (1-2) of dehydrocyclizing the polybenzimidazole precursor polyamide.
    Type: Application
    Filed: December 8, 2022
    Publication date: April 27, 2023
    Applicants: DAIKIN INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY
    Inventors: Yoshiyuki OISHI, Tsuyoshi Noguchi, Tadashi Kanbara
  • Publication number: 20230099704
    Abstract: A fluorinated amide compound having a specific repeating unit and a fluorinated nitrogen-containing heterocyclic ring-containing compound having a specific repeating unit.
    Type: Application
    Filed: November 10, 2022
    Publication date: March 30, 2023
    Applicants: DAIKIN INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY
    Inventors: Yoshiyuki OISHI, Tsuyoshi NOGUCHI
  • Publication number: 20230094470
    Abstract: An amide compound and a nitrogen-containing heterocyclic ring-containing compound which have a specific repeating unit and a crosslinking site represented by Formula (2): —C?CX1 at a molecular end.
    Type: Application
    Filed: November 10, 2022
    Publication date: March 30, 2023
    Applicants: DAIKIN INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY
    Inventors: Yoshiyuki OISHI, Tsuyoshi NOGUCHI
  • Patent number: 11548983
    Abstract: A fluorine-containing polybenzimidazole containing a repeating unit represented by the following formula (1): wherein Rf is —SO2—, —O—, —CO—, an alkylene group optionally containing a substituent, or a group represented by the following: wherein two Xs are each individually a hydrogen atom or a monovalent organic group; and R1 is a divalent organic group. Also disclosed is a polybenzimidazole precursor polyamide, a polybenzimidazole production method, film, flexible wiring board, printed circuit board, and polymer electrolyte membrane.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: January 10, 2023
    Assignees: DAIKIN INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY
    Inventors: Yoshiyuki Oishi, Tsuyoshi Noguchi, Tadashi Kanbara
  • Publication number: 20220251299
    Abstract: A method for producing a polybenzimidazole precursor polyamide including a repeating unit represented by the following formula (2): wherein Rf is —SO2—, —O—, —CO—, an alkylene group optionally containing a substituent, or a group represented by the following formula: two Xs are each individually a monovalent organic group; and R1 is a divalent organic group, the method including: a step (1-1) of polymerizing a tetramine compound (3) and a dicarboxylic acid derivative compound (4) as defined herein to provide the polybenzimidazole precursor polyamide.
    Type: Application
    Filed: April 25, 2022
    Publication date: August 11, 2022
    Applicants: DAIKIN INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY
    Inventors: Yoshiyuki OISHI, Tsuyoshi Noguchi, Tadashi Kanbara
  • Patent number: 11312840
    Abstract: An organic-inorganic hybrid composition including a polymer having a triazine ring structure in a main chain of the polymer (A); an inorganic particulate (B); and a surface-treating agent having a triazine ring structure represented by Formula (1)(C): wherein, in Formula (1), R1 is a carboxyl group, a phosphoric acid group, a sulfo group, or a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted amino group, wherein a number median diameter (Dn50) of the inorganic particulate (B) is greater than or equal to about 1 nm and less than or equal to about 20 nm.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: April 26, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tomoyuki Kikuchi, Yoshiyuki Oishi, Ryosuke Kamitani, Yukika Yamada
  • Patent number: 11180612
    Abstract: A triazine ring-containing polymer including a repeating unit represented by Formula (1) and having a number average molecular weight of greater than about 20000 g/mol and less than or equal to about 50000 g/mol: wherein, in Formula (1), R1 is each independently a C1 to C5 alkyl group and R2 is each independently a divalent group having at least one aromatic hydrocarbon group.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: November 23, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoshiyuki Oishi, Ryosuke Kamitani, Tomoyuki Kikuchi, Yukika Yamada
  • Publication number: 20200362112
    Abstract: A triazine ring-containing polymer including a structural unit represented by General Formula 1: *-[A-B-]-*??General Formula 1 wherein, in General Formula 1, A is represented by General Formula 2, B is represented by General Formula 3, and * indicates a point linked to another group or structural unit: wherein, in General Formula 2 and General Formula 3, L, R1 to R6, m1, n1, and * are the same as defined in the detailed description.
    Type: Application
    Filed: May 13, 2020
    Publication date: November 19, 2020
    Inventors: Yoshiyuki OISHI, Eigo MIYAZAKI, Tomoyuki KIKUCHI, Yukika YAMADA
  • Publication number: 20200291181
    Abstract: A fluorine-containing polybenzimidazole containing a repeating unit represented by the following formula (1): wherein Rf is —SO2—, —O—, —CO—, an alkylene group optionally containing a substituent, or a group represented by the following: wherein two Xs are each individually a hydrogen atom or a monovalent organic group; and R1 is a divalent organic group. Also disclosed is a polybenzimidazole precursor polyamide, a polybenzimidazole production method, film, flexible wiring board, printed circuit board, and polymer electrolyte membrane.
    Type: Application
    Filed: September 14, 2018
    Publication date: September 17, 2020
    Applicants: DAIKIN INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY
    Inventors: Yoshiyuki OISHI, Tsuyoshi NOGUCHI, Tadashi KANBARA
  • Patent number: 10717866
    Abstract: Disclosed an organic-inorganic hybrid composition including a polymer (A) including a triazine ring structure represented by General Formula (1) in a polymer main chain structure; wherein, in the formula, R1 is a substituted or unsubstituted alkyl group, aryl group, aralkyl group, amino group, arylamino group, alkylthio group, or arylthio group, an inorganic particulate (B); and a surface-treatment agent (C) including an acidic functional group wherein the polymer (A) is a thermoplastic polymer having a glass transition temperature (Tg) and a number median diameter (Dn50) of the inorganic particulate (B) is greater than or equal to about 1 nm and less than or equal to about 20 nm, and an article and an optical component including the organic-inorganic hybrid composition.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: July 21, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoshiyuki Oishi, Hiroshi Miyao, Tomoyuki Kikuchi, Yukika Yamada, Ryosuke Kamitani
  • Publication number: 20200062927
    Abstract: An organic-inorganic hybrid composition including a polymer having a triazine ring structure in a main chain of the polymer (A); an inorganic particulate (B); and a surface-treating agent having a triazine ring structure represented by Formula (1)(C): wherein, in Formula (1), R1 is a carboxyl group, a phosphoric acid group, a sulfo group, or a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted amino group, wherein a number median diameter (Dn50) of the inorganic particulate (B) is greater than or equal to about 1 nm and less than or equal to about 20 nm.
    Type: Application
    Filed: August 23, 2019
    Publication date: February 27, 2020
    Inventors: Tomoyuki KIKUCHI, Yoshiyuki OISHI, Ryosuke KAMITANI, Yukika YAMADA
  • Publication number: 20200062907
    Abstract: Disclosed is a triazine ring-containing polymer including a repeating unit represented by Formula (1) and has a number average molecular weight of greater than about 20000 g/mol and less than or equal to about 50000 g/mol: wherein, in Formula (1), R1 is each independently a C1 to C5 alkyl group and R2 is each independently a divalent group having at least one aromatic hydrocarbon group.
    Type: Application
    Filed: August 23, 2019
    Publication date: February 27, 2020
    Inventors: Yoshiyuki OISHI, Ryosuke KAMITANI, Tomoyuki KIKUCHI, Yukika YAMADA
  • Publication number: 20180244915
    Abstract: Disclosed an organic-inorganic hybrid composition including a polymer (A) including a triazine ring structure represented by General Formula (1) in a polymer main chain structure; wherein, in the formula, R1 is a substituted or unsubstituted alkyl group, aryl group, aralkyl group, amino group, arylamino group, alkylthio group, or arylthio group, an inorganic particulate (B); and a surface-treatment agent (C) including an acidic functional group wherein the polymer (A) is a thermoplastic polymer having a glass transition temperature (Tg) and a number median diameter (Dn50) of the inorganic particulate (B) is greater than or equal to about 1 nm and less than or equal to about 20 nm, and an article and an optical component including the organic-inorganic hybrid composition.
    Type: Application
    Filed: February 23, 2018
    Publication date: August 30, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yoshiyuki OISHI, Hiroshi Miyao, Tomoyuki Kikuchi, Yukika Yamada, Ryosuke Kamitani
  • Patent number: 9556312
    Abstract: A polyimide precursor, a polyimide using the polyimide precursor, and a polyimide film using the polyimide. The polyimide film has excellent adhesiveness to a metal layer or an adhesive, and has improved heat resistance. The polyimide solution may be used as a coating material.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: January 31, 2017
    Assignees: NATIONAL UNIVERSITY CORPORATION IWATE UNIVERSITY, UBE INDUSTRIES, LTD.
    Inventors: Yoshiyuki Oishi, Shin-ichiro Kohama, Nobuharu Hisano