Patents by Inventor Yukika Yamada

Yukika Yamada 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: 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: 11827750
    Abstract: A triazine ring-containing polymer having a high refractive index and a low birefringence, and being capable of being subjected to injection molding, wherein the polymer having a repeating unit of *-[A-B-]-*, including a structural unit A derived from a triazinedithiol compound, and a structural unit B including an aromatic hydrocarbon group; and a thermoplastic resin, a thermoplastic article, and an optical part including the polymer.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: November 28, 2023
    Assignees: SAMSUNG ELECTRONICS CO., LTD., OSAKA GAS CHEMICALS CO., LTD.
    Inventors: Nobuji Sakai, Hiroko Endo, Yukika Yamada, Eigo Miyazaki, Rie Yasuda, Shinsuke Miyauchi
  • Patent number: 11814482
    Abstract: Disclosed are a triazine ring-containing polymer having a repeating unit that comprises a structural unit derived from a triazinedithiol compound, the triazine ring-containing polymer having a yellowness index of less than 3 and comprising terminal SH groups, wherein at least a portion of the SH groups are capped with a hydrocarbon group, and a number of the SH groups in the triazine ring-containing polymer is less than about 1×1018 per gram of the polymer, and a thermoplastic article and optical part including the polymer.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: November 14, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eigo Miyazaki, Masashi Tsuji, Tomoyuki Kikuchi, Yukika Yamada
  • Publication number: 20230287231
    Abstract: A quantum dot ink composition including a plurality of quantum dots, and a mixed solvent including a Solvent a and a Solvent b, a quantum dot electroluminescent device including a light emitting layer formed from the quantum dot composition, and a method of making the quantum dot electroluminescent device are provided, where Solvent a is a cycloalkane compound with at least one ring carbon having a linear C4 to C16 alkyl group, an aromatic hydrocarbon compound having a linear C2 to C12 alkyl group, or a combination thereof, and Solvent b is a fluorinated alcohol.
    Type: Application
    Filed: March 8, 2023
    Publication date: September 14, 2023
    Inventors: Hiroko ENDO, Keigo FURUTA, Takao MOTOYAMA, Yukika YAMADA, Tomoyuki KIKUCHI, Eun Joo JANG, Hyo Sook JANG, Jun-Mo YOO, Tae Ho KIM, Yuho WON
  • Publication number: 20230257607
    Abstract: A quantum dot ink composition including a plurality of quantum dots, and a mixed solvent including a Solvent a and a Solvent b, the ink composition having a surface tension of about 30 mN/m to about 40 mN/m, where Solvent a is a cycloalkane compound with at least one ring carbon having a linear C4 to C16 alkyl group, and Solvent b is an aromatic hydrocarbon compound having a linear C2 to C12 alkyl group. A quantum dot electroluminescent device including a light emitting layer formed from the quantum dot composition.
    Type: Application
    Filed: February 15, 2023
    Publication date: August 17, 2023
    Inventors: Keigo FURUTA, Hiroko ENDO, Takao MOTOYAMA, Yukika YAMADA, Tomoyuki KIKUCHI, Eun Joo JANG, Hyo Sook JANG, Jun-Mo YOO, Tae Ho KIM, Yuho WON
  • 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: 20210269599
    Abstract: A triazine ring-containing polymer having a high refractive index and a low birefringence, and being capable of being subjected to injection molding, wherein the polymer having a repeating unit of *-[A-B-]-*, including a structural unit A derived from a triazinedithiol compound, and a structural unit B including an aromatic hydrocarbon group; and a thermoplastic resin, a thermoplastic article, and an optical part including the polymer.
    Type: Application
    Filed: February 26, 2021
    Publication date: September 2, 2021
    Inventors: Nobuji SAKAI, Hiroko ENDO, Yukika YAMADA, Eigo MIYAZAKI
  • Publication number: 20210163682
    Abstract: Disclosed are a triazine ring-containing polymer having a repeating unit that comprises a structural unit derived from a triazinedithiol compound, the triazine ring-containing polymer having a yellowness index of less than 3 and comprising terminal SH groups, wherein at least a portion of the SH groups are capped with a hydrocarbon group, and a number of the SH groups in the triazine ring-containing polymer is less than about 1×1018 per gram of the polymer, and a thermoplastic article and optical part including the polymer.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 3, 2021
    Inventors: Eigo MIYAZAKI, Masashi TSUJI, 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
  • 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: 9793450
    Abstract: A light emitting device includes a light emitting device on a substrate; an encapsulation layer covering the light emitting device; and a texture layer on the encapsulation layer. A surface of the texture layer has a ridge structure. A radial cross section of the ridge structure has a triangular shape with a distal vertex relative to the encapsulation layer surface. The distal vertex has one or more altitude angles, and the one or more altitude angles are less than or equal to 40 degrees.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: October 17, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yukika Yamada
  • Publication number: 20170148958
    Abstract: A light emitting device includes a light emitting device on a substrate; an encapsulation layer covering the light emitting device; and a texture layer on the encapsulation layer. A surface of the texture layer has a ridge structure. A radial cross section of the ridge structure has a triangular shape with a distal vertex relative to the encapsulation layer surface. The distal vertex has one or more altitude angles, and the one or more altitude angles are less than or equal to 40 degrees.
    Type: Application
    Filed: June 29, 2016
    Publication date: May 25, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Yukika YAMADA
  • Patent number: 9452236
    Abstract: Disclosed herein is a plasma generating apparatus capable of sufficiently performing a deodorization function and a sterilization function by increasing a generation amount of ions or radicals while suppressing generation of ozone. The plasma generating apparatus has a pair of electrodes (21 and 22) provided with dielectric films (21a and 22a) and serves to apply a predetermined voltage between the electrodes (21 and 22) to discharge plasma, fluid circulation holes (21b and 22b) are respectively provided at corresponding positions of the respective electrodes (21 and 22) and pass through the electrodes, and plasma is generated only in opening end portions (21x and 22x) forming the fluid circulation holes (21b and 22b) between the pair of electrodes (21 and 22).
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: September 27, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Makoto Miyamoto, Kazutoshi Takenoshita, Yukika Yamada, Yoshitaka Terao, Nobutake Hirai
  • Patent number: 9346242
    Abstract: A multi-layer thin film assembly including a first layer including a first material, wherein the first material includes at least two kinds of functional groups, and a second layer disposed on the first layer and including a second material that interacts with the at least two kinds of functional groups, and a barrier film including the same.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: May 24, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kenichi Nagayama, Yukika Yamada, Hisanao Usami
  • Patent number: 9224983
    Abstract: A substrate for a surface light emitting device in which a transparent electrode, an organic thin film layer, and a cathode electrode are sequentially stacked, the substrate including: a transparent support substrate; and a highly refractive layer that is disposed between the support substrate and the transparent electrode and comprises at least one layer having a refractive index that is equal to or greater than a refractive index of the support substrate, wherein the highly refractive layer comprises a light diffusion unit that diffuses light incident from the transparent electrode and a planarized surface that contacts the transparent electrode. Accordingly, a Haze value of the highly refractive layer is set to be 5% or less, and a diameter of bubbles existing in the highly refractive layer is set to be 1/10th or less of a thickness of the highly refractive layer.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: December 29, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yukika Yamada, Tadao Yagi, Kenichi Nagayama, Ryuichi Satoh
  • Patent number: 9220162
    Abstract: Generated amount of active species is increased, and dew formation or moisture attachment hardly occurs on a dielectric layer. A plasma generating apparatus including a pair of electrodes, wherein a dielectric layer is arranged on at least one of surfaces of the electrodes facing each other, plasma discharge occurs as a predetermined voltage is applied to the electrodes, and a coating film is arranged on a surface of the dielectric layer.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: December 22, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kazutoshi Takenoshita, Makoto Miyamoto, Seiro Yuge, Yukika Yamada, Yoko Nakayama, Yuki Kumagai