Patents by Inventor Masahiro Kawamura

Masahiro Kawamura 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: 20170237016
    Abstract: The present invention provides a material useful as an organic electroluminescence device material, and particularly provides: a compound having, as a substituent, a substituted aromatic heterocyclic group having a specific structure wherein any of the 1-position to 6-position or the 7-position to 10-position of fluoranthene is substituted with a nitrogen atom; a material for low-voltage organic electroluminescence devices using the compound; and an organic electroluminescence device and an electronic equipment using the material.
    Type: Application
    Filed: April 5, 2016
    Publication date: August 17, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tasuku HAKETA, Masahiro KAWAMURA, Yumiko MIZUKI, Yoichi IKEDA
  • Publication number: 20170229661
    Abstract: A compound represented by formula (1): wherein R1 to R6, R7 to R10, R11 to R14, R15 to R18, L1, L2, Ar1, and Ar2 are as defined in the description realizes an organic electroluminescence device with long lifetime.
    Type: Application
    Filed: June 14, 2016
    Publication date: August 10, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tasuku HAKETA, Masahiro KAWAMURA
  • Publication number: 20170229649
    Abstract: A compound represented by formula (1): wherein R1 to R4, a to d, L0 to L2, and Ar are as defined in the description, is a material providing an organic electroluminescence device which can be operated at a low driving voltage and has a long lifetime.
    Type: Application
    Filed: June 7, 2016
    Publication date: August 10, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoki KATO, Masahiro KAWAMURA, Masakazu FUNAHASHI
  • Publication number: 20170222153
    Abstract: Anthracene derivatives each having a structure including an anthracene skeleton, a phenanthrene skeleton selected from among various phenanthrene skeletons different in bonding site which is bonded to the 9-position of the anthracene skeleton and a group selected from among various aryl groups and so on which is bonded to the 10-position of the anthracene skeleton. Organic EL devices made by using the derivatives exhibit high light emission efficiency and a long life.
    Type: Application
    Filed: April 12, 2017
    Publication date: August 3, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahiro KAWAMURA, Mitsunori Ito
  • Publication number: 20170222152
    Abstract: Provided are an organic EL device having a high emission efficiency, a material for organic EL devices, which is capable of realizing the same, and the like. More specifically, provided are a compound represented by the following formula (1), a material for organic electroluminescence devices, which contains the compound, an organic electroluminescence device using the compound, and an electronic equipment provided with the organic electroluminescence device: wherein Ar represents a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 50 ring atoms, or a group formed by a combination of these groups, and W to R9 each independently represent a hydrogen atom or a substituent, provided that any pair of R2 and R3, R3 and R4, R4 and R5, R6 and R7, R7 and R8, and R8 and R9 are optionally bonded to each other to form a benzene ring.
    Type: Application
    Filed: June 14, 2016
    Publication date: August 3, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tasuku HAKETA, Masahiro KAWAMURA, Yumiko MIZUKI, Yoichi IKEDA
  • Publication number: 20170222144
    Abstract: A compound represented by formula (1): wherein Ar is a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted nitrogen-comprising heteroaryl group having 5 to 30 ring atoms; each of L1 and L2 is independently a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heteroarylene group having 5 to 30 ring atoms, or a substituted or unsubstituted divalent linking group wherein 2 to 4 groups selected from an arylene group having 6 to 30 ring carbon atoms and a heteroarylene group having 5 to 30 ring atoms are bonded to each other via a single bond; A is a monovalent group represented by formula (2); and B is a monovalent group represented by formula (5): wherein R1 to R10 and R21 to R30 are as defined in the description, enables the emission of light of a purer blue (shorter wavelength), a narrower half width (high
    Type: Application
    Filed: October 8, 2015
    Publication date: August 3, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tasuku HAKETA, Hirokatsu ITO, Yu KUDO, Masahiro KAWAMURA, Ryota TAKAHASHI
  • 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: 20170213983
    Abstract: A compound is represented by a formula (100) below, where X1, X2 and X3 are each independently a nitrogen atom or a carbon atom bonded with R2, Y is an oxygen atom, a sulfur atom and the like, R1, R2, R11, R21 and R22 are each a hydrogen atom or a substituent, L1 is a single bond or a linking group, and L2 is a linking group.
    Type: Application
    Filed: November 27, 2015
    Publication date: July 27, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoharu HAYAMA, Tetsuya MASUDA, Masahiro KAWAMURA, Hirokatsu ITO, Tasuku HAKETA, Yumiko MIZUKI
  • Publication number: 20170183291
    Abstract: A compound is represented by the following formula (1). In the formula (1), Ar is a substituted or unsubstituted aryl group including 6 to 30 ring carbon atoms, Ra are independently a substituted or unsubstituted alkyl group including 1 to 15 carbon atoms, or a substituted or unsubstituted cycloalkyl group including 3 to 15 carbon atoms, Rb1 to Rb4 are independently a halogen atom, a cyano group, a substituted or unsubstituted alkyl group including 1 to 15 carbon atoms, or the like, Rc1 to Rc10 are independently a hydrogen atom, a halogen atom, a cyano group, a substituted or unsubstituted alkyl group including 1 to 15 carbon atoms, or the like, * is a bonding position at which one of Rc1 to Rc10 is bonded to either nitrogen atom, x is an integer from 0 to 3, y is an integer from 0 to 4, and z are independently an integer from 0 to 5.
    Type: Application
    Filed: September 18, 2015
    Publication date: June 29, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Hirokatsu ITO, Masahiro KAWAMURA, Yumiko MIZUKI, Tasuku HAKETA, Tomoharu HAYAMA, Ryota TAKAHASHI
  • 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: 9660195
    Abstract: Anthracene derivatives each having a structure including an anthracene skeleton, a phenanthrene skeleton selected from among various phenanthrene skeletons different in bonding site which is bonded to the 9-position of the anthracene skeleton and a group selected from among various aryl groups and so on which is bonded to the 10-position of the anthracene skeleton. Organic EL devices made by using the derivatives exhibit high light emission efficiency and a long life.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: May 23, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahiro Kawamura, Mitsunori Ito
  • Publication number: 20170117469
    Abstract: A compound is represented by the following formula (1). In the formula (1), Ar is a substituted or unsubstituted aryl group including 6 to 30 ring carbon atoms, Ra are independently a substituted or unsubstituted alkyl group including 1 to 15 carbon atoms, or a substituted or unsubstituted cycloalkyl group including 3 to 15 carbon atoms, Rb1 to Rb4 are independently a halogen atom, a cyano group, a substituted or unsubstituted alkyl group including 1 to 15 carbon atoms, or the like, Rc1 to Rc10 are independently a hydrogen atom, a halogen atom, a cyano group, a substituted or unsubstituted alkyl group including 1 to 15 carbon atoms, or the like, * is a bonding position at which one of Rc1 to Rc10 is bonded to either nitrogen atom, x is an integer from 0 to 3, y is an integer from 0 to 4, and z are independently an integer from 0 to 5.
    Type: Application
    Filed: January 5, 2017
    Publication date: April 27, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Hirokatsu ITO, Masahiro KAWAMURA, Yumiko MIZUKI, Tasuku HAKETA, Tomoharu HAYAMA, Ryota TAKAHASHI
  • Patent number: 9614159
    Abstract: A fused aromatic ring derivative shown by the following formula (1): wherein Ra and Rb are independently a hydrogen atom or a substituent, p is an integer of 1 to 8 and q is an integer of 1 to 11, when p is 2 or more, plural Ras may be independently the same or different and adjacent Ras may form a ring, when q is 2 or more, plural Rbs may be independently the same or different, L1 is a single bond, or a substituted or unsubstituted divalent linking group, and Ar1 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms or a substituted or unsubstituted heteroaryl group having 5 to 50 ring atoms, provided that the substituent of L1, the substituent of Ar1, Ra and Rb contain no substituted or unsubstituted amino group.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: April 4, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Masahiro Kawamura
  • Publication number: 20170012209
    Abstract: A high-performance organic electroluminescence device and an electronic equipment provided with the organic electroluminescence device are provided. Also, a compound for achieving the organic electroluminescence device and the electronic equipment is provided. Specifically, a compound having a specific structure having a triphenylene skeleton, an organic electroluminescence device using the compound and an electronic equipment provided with the organic electroluminescence device are provided.
    Type: Application
    Filed: January 29, 2015
    Publication date: January 12, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahiro KAWAMURA, Yumiko MIZUKI, Hirokatsu ITO, Tomoharu HAYAMA, Tasuku HAKETA
  • Publication number: 20170005274
    Abstract: Disclosed are a compound having, as a main skeleton, a polycyclic structure represented by the following general formula (1), a material for organic electroluminescence devices including the compound, an organic electroluminescence device using the compound, and electronic equipment having the organic electroluminescence device mounted thereon. A compound capable of realizing an organic EL device with high emission efficiency, a material for organic electroluminescence devices including the compound, an organic electroluminescence device using the compound, and electronic equipment having the organic electroluminescence device mounted thereon, are provided. In the formula (1), A, L, X1 to X16, R, RA, and RB are those defined in the specification.
    Type: Application
    Filed: August 14, 2015
    Publication date: January 5, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yu KUDO, Kei YOSHIDA, Masahiro KAWAMURA, Yumiko MIZUKI, Hirokatsu ITO, Tasuku HAKETA, Tomoharu HAYAMA
  • Publication number: 20160380198
    Abstract: An aromatic amine derivative represented by the following formula (1) wherein at least one of Ar1 to Ar4 is a heterocyclic group represented by the following formula (2) wherein X1 is an oxygen atom or a sulfur atom.
    Type: Application
    Filed: September 8, 2016
    Publication date: December 29, 2016
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yumiko MIZUKI, Masakazu FUNAHASHI, Masahiro KAWAMURA
  • Patent number: 9512137
    Abstract: An organic electroluminescence device sequentially includes an anode, an emitting layer, an electron-transporting region, and a cathode, the electron-transporting region including an electron-transporting material that includes a cyano group and an aromatic ring group.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: December 6, 2016
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hirokatsu Ito, Hiroyuki Saito, Yumiko Mizuki, Masahiro Kawamura, Yuichiro Kawamura
  • Patent number: 9508939
    Abstract: A compound represented by the following formula (1): wherein in the formula, L1 is a single bond or a linking group, A is a group represented by the following formula (A), B is a group represented by the following formula (B), m is an integer of 1 to 3, and n is an integer of 1 to 4.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: November 29, 2016
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Kiyoshi Ikeda, Akinori Yomogita, Masahiro Kawamura, Hidetoshi Ono
  • Publication number: 20160343950
    Abstract: An organic electroluminescence device having higher performance, in particular exhibiting a better driving voltage and a better external quantum efficiency, while having an extended lifetime; and an electronic equipment provided with the organic electroluminescence device are provided. In addition, a compound for realizing the same device and equipment is provided. Specifically, a compound having a specific structure having a triphenylene skeleton; an organic electroluminescence device using the compound; and an electronic equipment provided with the organic electroluminescence device were provided.
    Type: Application
    Filed: January 29, 2015
    Publication date: November 24, 2016
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahiro KAWAMURA, Yumiko MIZUKI, Hirokatsu ITO, Tomoharu HAYAMA, Tasuku HAKETA
  • Publication number: 20160322587
    Abstract: A fused fluoranthene compound which includes an indeno[3,2-b]fluoranthene skeleton having a hetero atom is a novel compound, which is useful as a material for organic electroluminescence devices for use in an organic electroluminescence device and an electronic equipment.
    Type: Application
    Filed: July 8, 2016
    Publication date: November 3, 2016
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahiro KAWAMURA, Kazuki NISHIMURA