Patents by Inventor Hidetsugu Ikeda

Hidetsugu Ikeda 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: 20200052225
    Abstract: Organic EL devices having excellent performance and electronic devices comprising the organic EL devices are provided. The organic EL device comprises a cathode, an anode, and an organic layer disposed between the cathode and the anode, wherein the organic layer comprises one or more layers that comprise a fluorescent emitting layer and the fluorescent emitting layer comprises a first compound represented by formula (P) and a second compound that is not the same as the first compound. The electronic device comprises the organic EL device. wherein, ?1, ?2, Z, RB, RC, m, and n are as defined in the description.
    Type: Application
    Filed: February 13, 2018
    Publication date: February 13, 2020
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryota TAKAHASHI, Satomi TASAKI, Yuichiro KAWAMURA, Hidetsugu IKEDA, Yuki NAKANO, Masakazu FUNAHASHI, Tomoki KATO
  • Publication number: 20190393429
    Abstract: An organic electroluminescence device comprising: a cathode, an anode, and at least one organic layer disposed between the cathode and the anode, wherein at least one layer of the at least one organic layer comprises a compound represented by the following formulas (1-1) and (1-3) or a compound represented by the following formulas (1-2) and (1-3).
    Type: Application
    Filed: September 6, 2019
    Publication date: December 26, 2019
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryota TAKAHASHI, Hidetsugu IKEDA, Keita SEDA, Yuki NAKANO
  • Publication number: 20190355914
    Abstract: An organic electroluminescence device comprising: a cathode, an anode, and at least one organic layer disposed between the cathode and the anode, wherein at least one layer of the at least one organic layer comprises a compound represented by the following formulas (1-1) and (1-3) or a compound represented by the following formulas (1-2) and (1-3).
    Type: Application
    Filed: August 5, 2019
    Publication date: November 21, 2019
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryota TAKAHASHI, Hidetsugu IKEDA, Keita SEDA, Yuki NAKANO
  • Publication number: 20190341556
    Abstract: An organic electroluminescence device comprising: a cathode, an anode, and at least one organic layer disposed between the cathode and the anode, wherein at least one layer of the at least one organic layer comprises a compound represented by the following formulas (1-1) and (1-3) or a compound represented by the following formulas (1-2) and (1-3).
    Type: Application
    Filed: December 5, 2018
    Publication date: November 7, 2019
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Ryota TAKAHASHI, Hidetsugu IKEDA, Keita SEDA, Yuki NAKANO
  • Publication number: 20190221747
    Abstract: To provide an organic electroluminescence device having a high luminous efficiency and a novel compound that can be used as a material for an organic electroluminescence device having a high luminous efficiency. A compound represented by the following formula (1) or (2): wherein in the formulas (1) and (2), one or more pairs of adjacent two or more of R1 to R7 and R10 to R16 may form a substituted or unsubstituted, saturated or unsaturated ring; R17, and R1 to R7 and R10 to R16 that do not form the substituted or unsubstituted, saturated or unsaturated ring are independently a hydrogen atom, a substituted or unsubstituted aryl group including 6 to 20 ring carton atoms or a substituted or unsubstituted monovalent heterocyclic group including 5 to 20 ring atoms; two R17s may be the same or different; and Ar1 to Ar4 are independently a substituted or unsubstituted aryl group including 6 to 20 ring carbon atoms.
    Type: Application
    Filed: November 27, 2018
    Publication date: July 18, 2019
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryota TAKAHASHI, Hidetsugu IKEDA, Keita SEDA, Yuki NAKANO
  • Publication number: 20190214579
    Abstract: A compound represented by the formula (1) below. At least one set of two or more adjacent groups among R1 to R11 forms a substituted or unsubstituted heterocyclic ring, or forms a ring represented by the formula (2) below, or at least one of R1 to R4 is a group represented by the formula (3) below.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 11, 2019
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Keita SEDA, Ryota TAKAHASHI, Tomoki KATO, Hidetsugu IKEDA, Yuki NAKANO
  • Publication number: 20190194215
    Abstract: To provide an organic electroluminescence device having a high luminous efficiency and a novel compound that can be used as a material for an organic electroluminescence device having a high luminous efficiency. A compound represented by the following formula (1) or (2): wherein in the formulas (1) and (2), one or more pairs of adjacent two or more of R1 to R7 and R10 to R16 may form a substituted or unsubstituted, saturated or unsaturated ring; R17, and R1 to R7 and R10 to R16 that do not form the substituted or unsubstituted, saturated or unsaturated ring are independently a hydrogen atom, a substituted or unsubstituted aryl group including 6 to 20 ring carbon atoms or a substituted or unsubstituted monovalent heterocyclic group including 5 to 20 ring atoms; two R17s may be the same or different; and Ar1 to Ar4 are independently a substituted or unsubstituted aryl group including 6 to 20 ring carbon atoms.
    Type: Application
    Filed: March 1, 2019
    Publication date: June 27, 2019
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryota TAKAHASHI, Hidetsugu IKEDA, Keita SEDA, Yuki NAKANO
  • Patent number: 10249832
    Abstract: To provide an organic electroluminescence device having a high luminous efficiency and a novel compound that can be used as a material for an organic electroluminescence device having a high luminous efficiency. A compound represented by the following formula (3-I), wherein at least one of R1 to R7 and R10 to R11 is —N(R36)(R37). R31 to R37 are independently a hydrogen atom, a substituted or unsubstituted alkyl group including 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group including 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group including 6 to 50 ring carbon atoms or a substituted or unsubstituted monovalent heterocyclic group including 5 to 50 ring atoms.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: April 2, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryota Takahashi, Hidetsugu Ikeda, Keita Seda, Yuki Nakano
  • Publication number: 20190097142
    Abstract: A novel compound capable of producing an organic electroluminescence (EL) device with excellent properties, an organic EL device comprising the compound, and an electronic device comprising the organic EL device are provided. A compound represented by formula (1), an organic EL device comprising the compound, an organic EL device comprising an organic thin film layer between a cathode and an anode, wherein the organic thin film layer comprises one or more layers and a light emitting layer and at least one layer of the organic thin film layer comprises the compound, and an electronic device comprising the organic EL device: wherein A, B, C, and R1 to R11 are as defined in the description.
    Type: Application
    Filed: November 27, 2018
    Publication date: March 28, 2019
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryota TAKAHASHI, Tomoki KATO, Hidetsugu IKEDA
  • Patent number: 10230058
    Abstract: A novel compound capable of producing an organic electroluminescence (EL) device with excellent properties, an organic EL device comprising the compound, and an electronic device comprising the organic EL device are provided. A compound represented by formula (1), an organic EL device comprising the compound, an organic EL device comprising an organic thin film layer between a cathode and an anode, wherein the organic thin film layer comprises one or more layers and a light emitting layer and at least one layer of the organic thin film layer comprises the compound, and an electronic device comprising the organic EL device: wherein A, B, C, and R1 to R11 are as defined in the description.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: March 12, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryota Takahashi, Tomoki Kato, Hidetsugu Ikeda
  • Patent number: 10217948
    Abstract: To provide an organic electroluminescence device having a high luminous efficiency and a novel compound that can be used as a material for an organic electroluminescence device having a high luminous efficiency. A compound represented by the following formula (3-I), wherein at least one of R1 to R7 and R10 to R11 is —N(R36)(R37). R31 to R37 are independently a hydrogen atom, a substituted or unsubstituted alkyl group including 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group including 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group including 6 to 50 ring carbon atoms or a substituted or unsubstituted monovalent heterocyclic group including 5 to 50 ring atoms.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: February 26, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryota Takahashi, Hidetsugu Ikeda, Keita Seda, Yuki Nakano
  • Patent number: 10217943
    Abstract: An organic electroluminescence device which comprises a cathode, an anode and an organic thin film layer comprising at least one layer comprising a light emitting layer and disposed between the cathode and the anode, wherein at least one layer in the organic thin film layer comprises an anthracene derivative having a specific structure singly or as a component of a mixture, and an anthracene derivative having a specific asymmetric structure and providing an organic electroluminescence device exhibiting a great efficiency of light emission and having a long life, are provided.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: February 26, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hidetsugu Ikeda, Motohisa Ido, Masakazu Funahashi
  • Publication number: 20180198076
    Abstract: A novel compound capable of producing an organic electroluminescence (EL) device with excellent properties, an organic EL device comprising the compound, and an electronic device comprising the organic EL device are provided. A compound represented by formula (1), an organic EL device comprising the compound, an organic EL device comprising an organic thin film layer between a cathode and an anode, wherein the organic thin film layer comprises one or more layers and a light emitting layer and at least one layer of the organic thin film layer comprises the compound, and an electronic device comprising the organic EL device: wherein A, B, C, and R1 to R11 are as defined in the description.
    Type: Application
    Filed: March 5, 2018
    Publication date: July 12, 2018
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: RYOTA TAKAHASHI, Tomoki Kato, Hidetsugu Ikeda
  • Patent number: 9954187
    Abstract: Disclosed herein are a compound represented by formula (1) that is capable of producing organic electroluminescence (EL) devices having excellent properties, an organic EL device containing the compound, and an electronic device containing the organic EL device. The organic EL device contains a organic thin film layer between a cathode and an anode, in which the organic thin film layer contains one or more layers and a light emitting layer, and at least one layer of the organic thin film layer contains the compound.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: April 24, 2018
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryota Takahashi, Tomoki Kato, Hidetsugu Ikeda
  • Publication number: 20170324045
    Abstract: A novel compound capable of producing an organic electroluminescence (EL) device with excellent properties, an organic EL device comprising the compound, and an electronic device comprising the organic EL device are provided. A compound represented by formula (1), an organic EL device comprising the compound, an organic EL device comprising an organic thin film layer between a cathode and an anode, wherein the organic thin film layer comprises one or more layers and a light emitting layer and at least one layer of the organic thin film layer comprises the compound, and an electronic device comprising the organic EL device: wherein A, B, C, and R1 to R11 are as defined in the description.
    Type: Application
    Filed: March 31, 2017
    Publication date: November 9, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryota TAKAHASHI, Tomoki KATO, Hidetsugu IKEDA
  • Publication number: 20170125687
    Abstract: An organic electroluminescence device which comprises a cathode, an anode and an organic thin film layer comprising at least one layer comprising a light emitting layer and disposed between the cathode and the anode, wherein at least one layer in the organic thin film layer comprises an anthracene derivative having a specific structure singly or as a component of a mixture, and an anthracene derivative having a specific asymmetric structure and providing an organic electroluminescence device exhibiting a great efficiency of light emission and having a long life, are provided.
    Type: Application
    Filed: January 12, 2017
    Publication date: May 4, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Hidetsugu IKEDA, Motohisa IDO, Masakazu FUNAHASHI
  • Patent number: 9583716
    Abstract: An organic electroluminescence device which comprises a cathode, an anode and an organic thin film layer comprising at least one layer comprising a light emitting layer and disposed between the cathode and the anode, wherein at least one layer in the organic thin film layer comprises an anthracene derivative having a specific structure singly or as a component of a mixture, and an anthracene derivative having a specific asymmetric structure and providing an organic electroluminescence device exhibiting a great efficiency of light emission and having a long life, are provided.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: February 28, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hidetsugu Ikeda, Motohisa Ido, Masakazu Funahashi
  • Patent number: 8911886
    Abstract: A material for electroluminescent devices which comprises a compound in which a heterocyclic group having nitrogen is bonded to carbazolyl group and an organic electroluminescent device having at least one organic thin film layer which is sandwiched between the cathode and the anode and contains the above material in at least one layer, are provided. The material can provide organic electroluminescent devices emitting bluish light with a high purity of color. The organic electroluminescence device uses the material.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: December 16, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Toshihiro Iwakuma, Chishio Hosokawa, Hidetsugu Ikeda, Seiji Tomita, Takashi Arakane
  • Publication number: 20140291653
    Abstract: An organic electroluminescence device which comprises a cathode, an anode and an organic thin film layer comprising at least one layer comprising a light emitting layer and disposed between the cathode and the anode, wherein at least one layer in the organic thin film layer comprises an anthracene derivative having a specific structure singly or as a component of a mixture, and an anthracene derivative having a specific asymmetric structure and providing an organic electroluminescence device exhibiting a great efficiency of light emission and having a long life, are provided.
    Type: Application
    Filed: June 11, 2014
    Publication date: October 2, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Hidetsugu IKEDA, Motohisa IDO, Masakazu FUNAHASHI
  • Patent number: RE46368
    Abstract: A material for electroluminescent devices which comprises a compound in which a heterocyclic group having nitrogen is bonded to carbazolyl group and an organic electroluminescent device having at least one organic thin film layer which is sandwiched between the cathode and the anode and contains the above material in at least one layer, are provided. The material can provide organic electroluminescent devices emitting bluish light with a high purity of color. The organic electroluminescence device uses the material.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: April 18, 2017
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Toshihiro Iwakuma, Chishio Hosokawa, Hidetsugu Ikeda, Seiji Tomita, Takashi Arakane