Patents by Inventor Shiro Irisa

Shiro Irisa 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).

  • Heterocyclic compound, composition including the same, and organic light-emitting device including the heterocyclic compound
    Patent number: 11706977
    Abstract: A heterocyclic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: July 18, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Satoshi Inayama, Shiro Irisa, Keisuke Korai, Rie Sakurai, Mitsunori Ito, Masaki Numata
  • Heterocyclic compound, composition including the same, and organic light-emitting device including the heterocyclic compound
    Publication number: 20230140682
    Abstract: A heterocyclic compound represented by Formula 1, a composition including the same, and an organic light-emitting device including the heterocyclic compound: L1 to L4, L11, a1 to a4, a11, Ar1, Ar2, Ar11, R1 to R7, R11 to R12, b1 to b7, and b11 to b12 are described in the specification.
    Type: Application
    Filed: October 26, 2022
    Publication date: May 4, 2023
    Inventors: Masaki NUMATA, Rie SAKURAI, Keisuke KORAI, Mitsunori ITO, Shiro IRISA, Norihito ISHII
  • HETEROCYCLIC COMPOUND, ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME, AND ELECTRONIC APPARATUS INCLUDING THE ORGANIC LIGHT-EMITTING DEVICE
    Publication number: 20230126543
    Abstract: Provided are a heterocyclic compound represented by Formula 1, an organic light-emitting device including the same, and an electronic apparatus including the organic light-emitting device: The substituents in Formula 1 are the same as described in the detailed description.
    Type: Application
    Filed: August 29, 2022
    Publication date: April 27, 2023
    Inventors: Shiro IRISA, Wataru SOTOYAMA, Eigo MIYAZAKI, Atsushi IMAMURA, Masaru KINOSHITA, Mitsunori ITO
  • Heterocyclic compound, composition including the same, and organic light-emitting device including the heterocyclic compound
    Patent number: 11542252
    Abstract: A heterocyclic compound represented by Formula 1, a composition including the same, and an organic light-emitting device including the heterocyclic compound: L1 to L4, L11, a1 to a4, a11, Ar1, Ar2, Ar11, R1 to R7, R11 to R12, b1 to b7, and b11 to b12 are described in the specification.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: January 3, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Masaki Numata, Rie Sakurai, Keisuke Korai, Mitsunori Ito, Shiro Irisa, Norihito Ishii
  • COMPOUND, COMPOSITION INCLUDING THE SAME, LIQUID COMPOSITION, AND ORGANIC ELECTROLUMINESCENT DEVICE
    Publication number: 20210184132
    Abstract: Provided is a compound that has a long pot life of a solution and is able to achieve low driving voltage, high efficiency, and long lifespan of an organic electroluminescent device. The present disclosure relates to a compound having a triphenyl triazine structural moiety and including a group that has a structure in which a substituted or unsubstituted carbazole group and a predetermined number of carbazole rings are directly bonded via a single bond, as described in the specification.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 17, 2021
    Inventors: Keisuke KORAI, Atsushi IMAMURA, Jhunmo SON, Masaru KINOSHITA, Mitsunori ITO, Norifumi KISHI, Rie SAKURAI, Shiro IRISA, Masaki NUMATA
  • Heterocyclic compound, composition including the same, and organic light-emitting device including the heterocyclic compound
    Publication number: 20200207739
    Abstract: A heterocyclic compound represented by Formula 1, a composition including the same, and an organic light-emitting device including the heterocyclic compound: L1 to L4, L11, a1 to a4, a11, Ar1, Ar2, Ar11, R1 to R7, R11 to R12, b1 to b7, and b11 to b12 are described in the specification.
    Type: Application
    Filed: December 20, 2019
    Publication date: July 2, 2020
    Inventors: Masaki NUMATA, Rie SAKURAI, Keisuke KORAI, Mitsunori ITO, Shiro IRISA, Norihito ISHII
  • HETEROCYCLIC COMPOUND, COMPOSITION INCLUDING THE SAME, AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE HETEROCYCLIC COMPOUND
    Publication number: 20190214570
    Abstract: A heterocyclic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 11, 2019
    Inventors: Satoshi INAYAMA, Shiro IRISA, Keisuke KORAI, Rie SAKURAI, Mitsunori ITO, Masaki NUMATA
  • HETEROCYCLIC COMPOUND, COMPOSITION INCLUDING THE SAME, AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE HETEROCYCLIC COMPOUND
    Publication number: 20190185457
    Abstract: A heterocyclic compound represented by Formula 1: (A)n-L, ??Formula 1 wherein, in Formula 1, A, L, and n are the same as described in the specification.
    Type: Application
    Filed: December 14, 2018
    Publication date: June 20, 2019
    Inventors: Shiro IRISA, Keisuke KORAI, Mitsunori ITO
  • Hair dye and hair dye composition
    Patent number: 8118881
    Abstract: A hair dye containing a compound represented by the following general formula (I): wherein R1 and R2 each independently represent a hydrogen atom or a straight chain or branched alkyl group having 1 to 5 carbon atoms, and An? represents an inorganic anion, an organic anion, or a complex salt anion, respectively.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: February 21, 2012
    Assignee: Hodogaya Chemical Co., Ltd.
    Inventors: Masahiko Yamaguchi, Shiro Irisa, Eiji Takahashi, Katsumasa Kikkawa
  • HAIR DYE AND HAIR DYE COMPOSITION
    Publication number: 20110271465
    Abstract: A hair dye containing a compound represented by the following general formula (I): wherein R1 and R2 each independently represent a hydrogen atom or a straight chain or branched alkyl group having 1 to 5 carbon atoms, and An? represents an inorganic anion, an organic anion, or a complex salt anion, respectively.
    Type: Application
    Filed: September 25, 2008
    Publication date: November 10, 2011
    Applicant: HODOGAYA CHEMICAL CO., LTD.
    Inventors: Masahiko Yamaguchi, Shiro Irisa, Eiji Takahashi, Katsumasa Kikkawa