Patents by Inventor Ryutaro SUGAWARA

Ryutaro SUGAWARA 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: 20240191003
    Abstract: Provided are a composition and a photosensitive composition that contain inorganic fine particles dispersed stably over a long period of time and are less likely to undergo excessive loss of the mass of their components (or non-solvent components in a case where the composition or the photosensitive composition contains a solvent) even when heated; a product of curing of such a photosensitive composition; a compound suitable for use in such a photosensitive composition; and a method of producing such a compound. The composition includes a photopolymerizable compound (A) and inorganic fine particles (B) and the photosensitive composition includes a photopolymerizable compound (A), inorganic fine particles (B), and an initiating agent (C), in which the photopolymerizable compound (A) is a compound of a specific structure having a radically polymerizable group-containing group or a cationically polymerizable group-containing group.
    Type: Application
    Filed: October 17, 2023
    Publication date: June 13, 2024
    Inventor: Ryutaro SUGAWARA
  • Patent number: 11981794
    Abstract: A curable composition that can contain a high concentration of a heterocyclic compound (A) having a triazine ring as a component which gives a cured product exhibiting a high refractive index, surface without defects such as roughness or cracks, and is unlikely to have cracks occurring on the surface thereof even when exposed to a high-temperature and high-humidity environment, a cured product of the curable composition, and a compound that may be blended to the curable composition. As a component of the composition, a triazine compound having a structure in which an optionally substituted monocyclic aromatic group(s) or an optionally substituted condensed aromatic group(s) is/are bonded to the triazine ring via an amino group, and, as a solvent, triethylene glycol dimethyl ether are used in combination.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: May 14, 2024
    Assignee: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Ryutaro Sugawara, Masato Miyazaki, Takuro Asaba
  • Patent number: 11696500
    Abstract: The purpose of the present invention is to provide: a ?-conjugated compound exhibiting excellent light emission characteristics; an organic electroluminescent element using same; a display device; and an illumination device. Accordingly, this organic electroluminescent element is provided with: a positive electrode; a negative electrode; and at least one organic layer which is sandwiched between the positive electrode and the negative electrode, and which includes a light emission layer. The light emission layer includes a ?-conjugated compound having a structure represented by any of general formulae (1)-(3) (in general formulae (1)-(3), at least one among R1-R4, R5-R8, and R9-R16 represents a group represented by general formula (4) (in general formula (4): Ar1 and Ar2 represent substituted or unsubstituted aryl groups; L1 represents a single bond or a substituted or unsubstituted arylene group; and # represents a bond to general formulae (1)-(3))).
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: July 4, 2023
    Assignee: MERCK PATENT GMBH
    Inventors: Ryutaro Sugawara, Takatugu Suzuki
  • Publication number: 20220185824
    Abstract: Disclosed is a ?-conjugated compound that has a structure of the following Formula (1) and a HOMO level of ?5.3 eV or higher, in the formula, M represents CX1 or a nitrogen atom, X1 to X6 each represent an aromatic substituent or an aromatic heterocyclic group, in which at least four of X1 to X6 are electron-donating condensed aromatic ring substituents with 14 or more n electrons, and at least one of X1 to X6 is an electron-attracting substituent, and X1 to X6 may each independently further have a substituent.
    Type: Application
    Filed: February 14, 2020
    Publication date: June 16, 2022
    Inventors: Ryutaro SUGAWARA, Kazuma ODA, Hiroki TATSUMI
  • Patent number: 11358951
    Abstract: In order to provide a novel ?-conjugated compound capable of increasing the light-emission efficiency of an organic electroluminescence element, for example, this ?-conjugated compound has a structure indicated by general formula (1). (In general formula (1): Z1-Z6 each independently indicate a hydrogen atom, a deuterium atom, an electron-donating group D, or an electron-withdrawing group A; at least out of two among Z1-Z6 is an electron-donating group D and the other is an electron-withdrawing group A; and at least one ortho position combination Z1 and Z2, Z2 and Z3, Z3 and Z4, Z4 and Z5, Z5 and Z6, or Z6 and Z1 among Z1-Z6 is one combination out of an electron-donating group D and an electron-donating group D, an electron-withdrawing group A and an electron-withdrawing group A, or an electron-donating group D and an electron-withdrawing group A.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: June 14, 2022
    Assignee: MERCK PATENT GMBH
    Inventors: Yasuo Miyata, Taketo Namikawa, Takayuki Iijima, Ryutaro Sugawara, Tetsuya Yamada, Takatugu Suzuki
  • Publication number: 20220177641
    Abstract: a curable composition that gives a cured product exhibiting a high refractive index and a surface without defects such as roughness or cracks, a cured product of the composition, and a compound that may be blended to the composition. In a curable composition including a triazine compound having three aromatic-ring-containing groups each bonded to the triazine ring via an amino group, an aromatic-ring-containing group having a specific structure having a radically polymerizable group-containing group or a cationically polymerizable group-containing group is used as at least one of the three aromatic-ring-containing groups bonded to the triazine ring in the triazine compound mentioned above.
    Type: Application
    Filed: December 1, 2021
    Publication date: June 9, 2022
    Inventor: Ryutaro SUGAWARA
  • Publication number: 20220177625
    Abstract: A curable composition that gives a cured product exhibiting a high refractive index and a surface without defects such as roughness or cracks, a cured product of the composition, and a compound that may be blended to the composition. A triazine compound is used as a curable component in a curable composition, the triazine compound having an optionally substituted quinolinyl group, an optionally substituted isoquinolinyl group, or an optionally substituted 2-substituted benzothiazolyl group and an aromatic-ring-containing group having a radically polymerizable group-containing group or an aromatic-ring-containing group having a cationically polymerizable group-containing group, each group bonded to the triazine ring via an amino group.
    Type: Application
    Filed: December 1, 2021
    Publication date: June 9, 2022
    Inventors: Ryutaro SUGAWARA, Takuro ASABA
  • Publication number: 20220177673
    Abstract: A curable composition that can contain a high concentration of a heterocyclic compound (A) having a triazine ring as a component which gives a cured product exhibiting a high refractive index, surface without defects such as roughness or cracks, and is unlikely to have cracks occurring on the surface thereof even when exposed to a high-temperature and high-humidity environment, a cured product of the curable composition, and a compound that may be blended to the curable composition. As a component of the composition, a triazine compound having a structure in which an optionally substituted monocyclic aromatic group(s) or an optionally substituted condensed aromatic group(s) is/are bonded to the triazine ring via an amino group, and, as a solvent, triethylene glycol dimethyl ether are used in combination.
    Type: Application
    Filed: December 1, 2021
    Publication date: June 9, 2022
    Inventors: Ryutaro SUGAWARA, Masato MIYAZAKI, Takuro ASABA
  • Patent number: 11261374
    Abstract: The present invention addresses the issue of providing: a novel squarylium compound that has high light-emission efficiency, in particular little reduction in light-emission efficiency in a solid membrane, and is capable of emitting a near-infrared light having excellent light resistance; and a light-emitting composition and a light-emitting film that contain said squarylium compound. This squarylium compound is characterized by having a structure indicated by general formula (1).
    Type: Grant
    Filed: September 2, 2019
    Date of Patent: March 1, 2022
    Assignee: KONICA MINOLTA, INC.
    Inventor: Ryutaro Sugawara
  • Publication number: 20210340160
    Abstract: This benzonitrile derivative has the structure represented by general formula (1). [In the formula, each of substituent groups D1-D5 independently represents a carbazolyl group or an azacarbazolyl group, and at least one thereof represents an azacarbazolyl group. Each of D1-D5 may independently further have a substituent group.
    Type: Application
    Filed: September 5, 2019
    Publication date: November 4, 2021
    Inventors: Ryutaro SUGAWARA, Hiroshi KITA
  • Publication number: 20210343947
    Abstract: This benzonitrile derivative has the structure represented by general formula (1). [In the formula, each of substituent groups D1-D5 independently represents a carbazolyl group, and at least one thereof has a structure having a chirality-producing section. However, there is no case in which D1-D5 are all the same. Each of D1-D5 may independently further have a substituent group.
    Type: Application
    Filed: August 5, 2019
    Publication date: November 4, 2021
    Inventors: Ryutaro SUGAWARA, Hiroshi KITA
  • Publication number: 20210261858
    Abstract: The present invention addresses the issue of providing: a novel squarylium compound that has high light-emission efficiency, in particular little reduction in light-emission efficiency in a solid membrane, and is capable of emitting a near-infrared light having excellent light resistance; and a light-emitting composition and a light-emitting film that contain said squarylium compound. This squarylium compound is characterized by having a structure indicated by general formula (1).
    Type: Application
    Filed: September 2, 2019
    Publication date: August 26, 2021
    Inventor: Ryutaro SUGAWARA
  • Publication number: 20190334097
    Abstract: The purpose of the present invention is to provide: a ?-conjugated compound exhibiting excellent light emission characteristics; an organic electroluminescent element using same; a display device; and an illumination device. Accordingly, this organic electroluminescent element is provided with: a positive electrode; a negative electrode; and at least one organic layer which is sandwiched between the positive electrode and the negative electrode, and which includes a light emission layer. The light emission layer includes a ?-conjugated compound having a structure represented by any of general formulae (1)-(3) (in general formulae (1)-(3), at least one among R1-R4, R5-R8, and R9-R16 represents a group represented by general formula (4) (in general formula (4): Ar1 and Ar2 represent substituted or unsubstituted aryl groups; L1 represents a single bond or a substituted or unsubstituted arylene group; and # represents a bond to general formulae (1)-(3))).
    Type: Application
    Filed: June 26, 2017
    Publication date: October 31, 2019
    Inventors: Ryutaro SUGAWARA, Takatugu SUZUKI
  • Patent number: 10411203
    Abstract: Provided is an organic electroluminescent element containing an anode, a cathode, and an organic functional layer containing one or a plurality of light-emitting layers, the organic functional layer being interposed between the anode and the cathode, wherein at least one of the light-emitting layers contains a compound having two condensed aromatic rings bonded to each other with a linking group; and the condensed aromatic rings form a ?-? stacking structure in the molecule.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: September 10, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Ryutaro Sugawara, Takamune Hattori, Hiroshi Kita
  • Publication number: 20190214578
    Abstract: An object of the present invention is to provide an organic electroluminescent element having a maximum emission wavelength in a near-infrared region, high luminous efficiency, and a small change in resistance value over time during passage of a current. An organic electroluminescent element of the present invention includes a positive electrode, a negative electrode, and an organic layer sandwiched between the positive electrode and the negative electrode and including at least a light emitting layer. The light emitting layer includes a first organic compound formed of a delayed fluophor or a phosphorescent compound having ?EST of 0.3 eV or less. Any one of the positive electrode, the negative electrode, and the organic layer includes a second organic compound formed of a fluorescent dye represented by general formula (1) or (2), having a maximum emission wavelength of 700 nm to 1000 nm in a fluorescence spectrum.
    Type: Application
    Filed: July 6, 2017
    Publication date: July 11, 2019
    Applicant: Konica Minolta, Inc.
    Inventors: RYUTARO SUGAWARA, TAKATUGU SUZUKI
  • Publication number: 20180170914
    Abstract: In order to provide a novel ?-conjugated compound capable of increasing the light-emission efficiency of an organic electroluminescence element, for example, this ?-conjugated compound has a structure indicated by general formula (1). (In general formula (1): Z1-Z6 each independently indicate a hydrogen atom, a deuterium atom, an electron-donating group D, or an electron-withdrawing group A; at least out of two among Z1-Z6 is an electron-donating group D and the other is an electron-withdrawing group A; and at least one ortho position combination Z1 and Z2, Z2 and Z3, Z3 and Z4, Z4 and Z5, Z5 and Z6, or Z6 and Z1 among Z1-Z6 is one combination out of an electron-donating group D and an electron-donating group D, an electron-withdrawing group A and an electron-withdrawing group A, or an electron-donating group D and an electron-withdrawing group A.
    Type: Application
    Filed: April 27, 2016
    Publication date: June 21, 2018
    Applicant: Konica Minolta, Inc.
    Inventors: Yasuo MIYATA, Taketo NAMIKAWA, Takayuki IIJIMA, Ryutaro SUGAWARA, Tetsuya YAMADA, Takatugu SUZUKI
  • Publication number: 20160336522
    Abstract: Provided is an organic electroluminescent element containing an anode, a cathode, and an organic functional layer containing one or a plurality of light-emitting layers, the organic functional layer being interposed between the anode and the cathode, wherein at least one of the light-emitting layers contains a compound having two condensed aromatic rings bonded to each other with a linking group; and the condensed aromatic rings form a ?-? stacking structure in the molecule.
    Type: Application
    Filed: January 28, 2015
    Publication date: November 17, 2016
    Inventors: Ryutaro SUGAWARA, Takamune HATTORI, Hiroshi KITA