Patents by Inventor Takushi Shiomi

Takushi Shiomi 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: 20190161497
    Abstract: Specifically substituted benzofuro- and benzothienoquinolines and their use in electronic devices, especially electroluminescent devices. When used as charge transport material, charge blocker material and/or host material in electroluminescent devices, the specifically substituted benzofuro- and benzothienoquinolines may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices and reduced driving voltage of electroluminescent devices.
    Type: Application
    Filed: June 13, 2017
    Publication date: May 30, 2019
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yuichi NISHIMAE, Michelle GROARKE, Heinz WOLLEB, Annemarie WOLLEB, Yuki NAKANO, Hideaki NAGASHIMA, Tasuku HAKETA, Masahiro KAWAMURA, Takushi SHIOMI
  • Publication number: 20190006598
    Abstract: A compound represented by the following formula (1):
    Type: Application
    Filed: December 22, 2016
    Publication date: January 3, 2019
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Takushi SHIOMI, Masahiro KAWAMURA
  • Publication number: 20180319813
    Abstract: A compound of general formula (I): wherein A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, X1 and X2 have the meanings as defined in the description provides electronic devices, preferably OLEDs, which ensure good efficiencies, good operative lifetimes and a high stability to thermal stress, and a low use and operating voltage of the OLEDs.
    Type: Application
    Filed: November 4, 2016
    Publication date: November 8, 2018
    Applicant: IDEMITSU KOSAN CO., LTD
    Inventors: Yuichi NISHIMAE, Thomas SCHAFER, Yuki NAKANO, Hideaki NAGASHIMA, Masahiro KAWAMURA, Tasuku HAKETA, Takushi SHIOMI
  • Patent number: 9997719
    Abstract: A material for organic electroluminescence device including a specific compound having a specific group in the central skeleton and an organic electroluminescence device including an organic thin film layer between an anode and a cathode. The organic thin film layer includes a light emitting layer and at least one layer of the organic thin film layer includes the material for organic electroluminescence device. The organic electroluminescence device has a long lifetime and the material for organic electroluminescence device realizes such a device.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: June 12, 2018
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yumiko Mizuki, Nobuhiro Yabunouchi, Takushi Shiomi, Kazuki Nishimura, Mitsuru Eida
  • Patent number: 9837616
    Abstract: An aromatic amine derivative represented by the following formula (1): wherein Z1 is a group represented by the following formula (2); Z2 is a group represented by the following formula (3) or (3?); and P and Q are independently a group represented by the following formula (4) or (5):
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: December 5, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Takushi Shiomi, Masami Watanabe, Mitsuru Eida
  • Publication number: 20170213982
    Abstract: A compound is represented by a formula (1). In the formula (1); Ar represents an aromatic hydrocarbon group or a heterocyclic group having 4 or more fused rings and 22 or less ring atoms; Ar optionally has a substituent; R11 is a substituted or unsubstituted aromatic hydrocarbon group; when R11 is an aromatic hydrocarbon group having a substituent, the substituent is not a heterocyclic group; X1 represents a nitrogen atom or a carbon atom bonded with R12 (CR12); R12 represents a hydrogen atom or a substituent; L1 represents a single bond or a linking group; X2 and X3 each independently represent a nitrogen atom or a carbon atom bonded with R2 (CR2); R1 and R2 each independently represent a hydrogen atom or a substituent; and L2 is a linking group.
    Type: Application
    Filed: April 28, 2016
    Publication date: July 27, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoharu HAYAMA, Tetsuya MASUDA, Masahiro KAWAMURA, Hirokatsu ITO, Yumiko MIZUKI, Tomoki KATO, Takushi SHIOMI
  • Publication number: 20170186968
    Abstract: A compound represented by the following formula (1):
    Type: Application
    Filed: December 23, 2016
    Publication date: June 29, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Takushi SHIOMI, Masahiro KAWAMURA
  • Patent number: 9527814
    Abstract: An aromatic amine derivative represented by the following formula (1), wherein L is a linking group, Z is a group represented by the following formula (2) and A1 and A2 are independently a monovalent group represented by the following formula (3):
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: December 27, 2016
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoki Kato, Mitsuru Eida, Masami Watanabe, Akinori Yomogita, Takushi Shiomi
  • Patent number: 9496508
    Abstract: A compound represented by the following formula (1).
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: November 15, 2016
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Takushi Shiomi, Ryohei Hashimoto, Hideaki Nagashima
  • Patent number: 9450194
    Abstract: A heteroarene derivative including a nitrogen-boron coordinate bond, represented by the following formula (1). In the formula (1). Z1 is a group represented by the following formula (2); Z2 is a substituted or unsubstituted aryl group including 6 to 30 ring carbon atoms or a substituted or unsubstituted heteroaryl group including 5 to 30 ring atoms; L is a substituted or unsubstituted arylene including 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroarylene including 5 to 30 ring atoms, —O—, —S—, —(CR2R3)n— (wherein n is an integer of 1 to 8).
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: September 20, 2016
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Takushi Shiomi, Kazuki Nishimura
  • Publication number: 20160104845
    Abstract: A material for organic electroluminescence device including a specific compound having a specific group in the central skeleton and an organic electroluminescence device including an organic thin film layer between an anode and a cathode. The organic thin film layer includes a light emitting layer and at least one layer of the organic thin film layer includes the material for organic electroluminescence device. The organic electroluminescence device has a long lifetime and the material for organic electroluminescence device realizes such a device.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 14, 2016
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yumiko MIZUKI, Nobuhiro Yabunouchi, Takushi Shiomi, Kazuki Nishimura, Mitsuru Eida
  • Publication number: 20140353650
    Abstract: A compound represented by the following formula (1).
    Type: Application
    Filed: December 5, 2012
    Publication date: December 4, 2014
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Takushi Shiomi, Ryohei Hashimoto, Hideaki Nagashima
  • Publication number: 20140231772
    Abstract: A compound represented by the following formula (1): wherein C1 and C2 are independently a carbon atom; X1 to X4 are independently N, CH or C(R1); L is a group represented by the formula (2): -L1-(A)n; L1 is a group represented by the formula (3); A is alkyl, cycloalkyl, alkoxy, cycloalkoxy, aryl, aryloxy, arylthio, heteroaryl, heteroaryloxy, amino, silyl, diaryloxyphosphinyl, a divalent group corresponding to these groups, fluoro or cyano.
    Type: Application
    Filed: November 2, 2012
    Publication date: August 21, 2014
    Inventors: Takushi Shiomi, Ryohei Hashimoto, Hideaki Nagashima
  • Publication number: 20140183504
    Abstract: A heteroarene derivative including a nitrogen-boron coordinate bond, represented by the following formula (1). In the formula (1). Z1 is a group represented by the following formula (2); Z2 is a substituted or unsubstituted aryl group including 6 to 30 ring carbon atoms or a substituted or unsubstituted heteroaryl group including 5 to 30 ring atoms; L is a substituted or unsubstituted arylene including 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroarylene including 5 to 30 ring atoms, —O—, —S—, —(CR2R3)n— (wherein n is an integer of 1 to 8).
    Type: Application
    Filed: December 27, 2013
    Publication date: July 3, 2014
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Takushi SHIOMI, Kazuki NISHIMURA
  • Publication number: 20140151677
    Abstract: An aromatic amine derivative represented by the following formula (1): wherein Z1 is a group represented by the following formula (2); Z2 is a group represented by the following formula (3) or (3?); and P and Q are independently a group represented by the following formula (4) or (5):
    Type: Application
    Filed: July 23, 2012
    Publication date: June 5, 2014
    Inventors: Takushi Shiomi, Masami Watanabe, Mitsuru Eida
  • Publication number: 20120187391
    Abstract: An aromatic amine derivative represented by the following formula (1), wherein L is a linking group, Z is a group represented by the following formula (2) and A1 and A2 are independently a monovalent group represented by the following formula (3):
    Type: Application
    Filed: February 15, 2011
    Publication date: July 26, 2012
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoki Kato, Mitsuru Eida, Masami Watanabe, Akinori Yomogita, Takushi Shiomi