Patents by Inventor Kengo Kishino

Kengo Kishino 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).

  • Patent number: 8785005
    Abstract: Provided is an organic light-emitting device that can be driven at low voltage, that produces a light output with high efficiency and high luminance, and that can emit light with high color purity. An organic light-emitting device includes an anode, a cathode, a light-emitting layer disposed between the anode and the cathode, and an organic layer disposed between the anode and the light-emitting layer. The organic layer has a fused polycyclic compound represented by general formula (1): wherein R1 to R8 are each a hydrogen atom, a halogen atom, a cyano group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted polycyclic group and are each the same or different, and wherein R9 and R10 are substituted or unsubstituted aryl groups that are the same or different.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: July 22, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Horiuchi, Jun Kamatani, Akihito Saitoh, Kengo Kishino, Hiroyuki Tomono
  • Patent number: 8771842
    Abstract: The present invention provides a benzo[b]chrysene compound represented by general formula [1] below and an organic light-emitting element including the compound. In the general formula [1], Ar represents a substituted or unsubstituted aromatic hydrocarbon group, and R1 to R4 are each independently selected from the group consisting of a hydrogen atom, substituted or unsubstituted alkyl groups, and substituted or unsubstituted aromatic hydrocarbon groups.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: July 8, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Kosuge, Jun Kamatani, Kengo Kishino, Hiroyuki Tomono
  • Publication number: 20140110687
    Abstract: Provided is a novel indenochrysene compound serving as a guest compound suitable for a guest material. In particular, the novel indenochrysene compound is represented by Formula (1), where R1 to R14 are independently selected from hydrogen atoms and alkyl groups containing one to four carbon atoms, one of X1 and X2 is an aryl group, and the other one is a hydrogen atom.
    Type: Application
    Filed: October 17, 2013
    Publication date: April 24, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Naoki Yamada, Jun Kamatani, Kengo Kishino
  • Publication number: 20140103322
    Abstract: The present invention provides a novel organic compound having high thermal stability and can form a stable amorphous thin-film and also provides an organic light-emitting device having a high luminous efficiency and a low driving voltage.
    Type: Application
    Filed: April 23, 2012
    Publication date: April 17, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Taiki Watanabe, Naoki Yamada, Jun Kamatani, Kengo Kishino, Akihito Saitoh
  • Patent number: 8642191
    Abstract: A fused polycyclic compound is represented by general formula [1]: wherein at least one of R1 to R16 is selected from a halogen atom, an alkyl group having 1 to 20 carbon atoms, a substituted amino group, an aryl group which may have a substituent, and a heterocyclic group which may have a substituent. An organic light-emitting element includes the fused polycyclic compound.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: February 4, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masashi Hashimoto, Yuko Chishina, Kengo Kishino, Satoshi Igawa
  • Publication number: 20140027757
    Abstract: The present invention provides a novel stable organic compound and also provides an organic light-emitting device having a high luminous efficiency and a low driving voltage. The present invention relates to a spiro compound represented by the following Formula [1]: wherein, R1 to R5 are each independently selected from hydrogen atoms and alkyl groups having 1 to 4 carbon atoms and may be the same or different; and X is any of a sulfur atom, an oxygen atom, and a carbon atom, and when X is a carbon atom, the carbon atom may have one or two alkyl groups having 1 to 4 carbon atoms, and when the carbon atom has two alkyl groups having 1 to 4 carbon atoms, the two alkyl groups may be the same or different.
    Type: Application
    Filed: April 5, 2012
    Publication date: January 30, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Naoki Yamada, Taiki Watanabe, Kengo Kishino, Jun Kamatani
  • Patent number: 8628864
    Abstract: There is provided an indolo[3,2,1-jk]carbazole compound having an excellent membrane property, a high T1 energy, and a deep HOMO level. There is also provided an organic light-emitting device that contains the indolo[3,2,1-jk]carbazole compound. There is provided an indolo[3,2,1-jk]carbazole compound having a high T1 energy and a deep HOMO level.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: January 14, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigemoto Abe, Jun Kamatani, Kengo Kishino
  • Publication number: 20130324771
    Abstract: The present invention provides a novel benzopyrene compound and also provides a organic light-emitting device. The present invention provides a benzopyrene represented by the formula [1] above.
    Type: Application
    Filed: June 3, 2013
    Publication date: December 5, 2013
    Inventors: Naoki Yamada, Jun Kamatani, Kengo Kishino, Akihito Saitoh
  • Patent number: 8587189
    Abstract: An organic light-emitting element includes a first electrode, an organic compound layer, and a second electrode on a substrate and emits light from the second electrode side, wherein the second electrode includes a first layer and a second layer in contact with the first layer sequentially from the substrate side, the second layer is a layer comprising Ag, and the first layer is a layer comprising Ag and Cs.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: November 19, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shoji Sudo, Yojiro Matsuda, Kengo Kishino, Naoyuki Ito
  • Patent number: 8580400
    Abstract: Provided are a novel bichrysene compound and an organic light emitting device having high light emitting efficiency and excellent driving durability. The organic light emitting device includes an anode, a cathode, and a layer formed of an organic compound interposed between the anode and the cathode. The layer formed of an organic compound has a bichrysene compound represented by the following general formula (1).
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: November 12, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Kosuge, Jun Kamatani, Yosuke Nishide, Kengo Kishino
  • Patent number: 8557401
    Abstract: To provide a novel chrysene compound and an organic light-emitting device having high emission efficiency and excellent driving durability, provided is a novel triaryl-substituted chrysene compound represented by the general formula [1]: wherein Ar1 to Ar3 each represent a substituent selected from the group consisting of a substituted or unsubstituted naphthyl group, a substituted or unsubstituted phenanthryl group, and a substituted or unsubstituted fluorenyl group.
    Type: Grant
    Filed: October 3, 2010
    Date of Patent: October 15, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Kosuge, Jun Kamatani, Yosuke Nishide, Kengo Kishino
  • Publication number: 20130228770
    Abstract: Provided is an organic light emitting device having high emission efficiency and excellent driving durability. The organic light emitting device includes an anode, a cathode, and an organic compound layer disposed between the anode and the cathode, in which the organic compound layer includes an indolophenoxazine compound represented by the following general formula [1]: (in the formula [1], R1 to R4 each represents one of a hydrogen atom and an alkyl group having 1 to 4 carbon atoms, and n represents an integer of 0 to 3).
    Type: Application
    Filed: November 25, 2011
    Publication date: September 5, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsuya Kosuge, Jun Kamatani, Shigemoto Abe, Kengo Kishino
  • Publication number: 20130228768
    Abstract: Provided is an excellent organic light emitting element having high emission efficiency and a low drive voltage. The organic light emitting element includes an anode, a cathode, and an organic compound layer disposed between the anode and the cathode, in which the organic compound layer includes a quinolino[3,2,1-kl]phenoxazine compound represented by the following general formula [1]: where R1 to R4 each represent a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R1 to R4 may be identical to or different from each other, and Ar represents a single bond or an oligophenylene group having 6 to 18 carbon atoms.
    Type: Application
    Filed: November 8, 2011
    Publication date: September 5, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shigemoto Abe, Tetsuya Kosuge, Jun Kamatani, Kengo Kishino
  • Patent number: 8519613
    Abstract: An organic light-emitting device includes a first electrode, a second electrode, and a light-emitting layer disposed between the first and second electrodes. The light-emitting layer contains an organic compound emitting photoluminescent light with a peak wavelength of 430 to 480 nm. The organic compound has a profile factor of 0.02 or less at a wave number of 1,300 to 1,680 cm?1 as calculated from Huang-Rhys factors.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: August 27, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Isao Kawata, Naoki Yamada, Akihito Saitoh, Hiroyuki Tomono, Kengo Kishino, Masashi Hashimoto, Satoshi Igawa, Keiji Okinaka
  • Publication number: 20130214268
    Abstract: An organic light-emitting device that realizes high-emission efficiency and low-driving voltage is provided. The organic light-emitting device contains a xanthone compound represented by general formula [1].
    Type: Application
    Filed: October 17, 2011
    Publication date: August 22, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takayuki Horiuchi, Jun Kamatani, Naoki Yamada, Kengo Kishino, Kenichi Ikari, Akihito Saitoh
  • Publication number: 20130175519
    Abstract: The present invention provides a stable new condensed polycyclic compound which is not likely to form a molecular association. In addition, the present invention also provides an organic light-emitting element having a high light-emitting efficiency and a low drive voltage. In the condensed polycyclic compound in Claim 1 represented by the general formula [1], R1, R2 and R5 are each independently selected from a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an aryl group, and a heterocyclic group. R3 and R4 each represent an alkyl group having 1 to 4 carbon atoms. The aryl group and the heterocyclic group each may have at least one of an alkyl group, an aralkyl group, an aryl group, a heterocyclic group, an amino group, and an alkoxy group as a substituent.
    Type: Application
    Filed: August 23, 2011
    Publication date: July 11, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Naoki Yamada, Jun Kamatani, Kengo Kishino, Hiroyuki Tomono, Tomona Yamaguchi
  • Publication number: 20130076604
    Abstract: Provided are a novel organic compound appropriate for emission of green light and an organic light-emitting device including the organic compound. Provided is a substituted or unsubstituted indeno[1,2,3-cd]naphtho[2,3-k]fluoranthene appropriate for emission of green light. The substituents of the indeno[1,2,3-cd]naphtho[2,3-k]fluoranthene are each independently selected from a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted amino group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heterocyclic group.
    Type: Application
    Filed: May 26, 2011
    Publication date: March 28, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Jun Kamatani, Naoki Yamada, Kengo Kishino, Akihito Saitoh
  • Patent number: 8389982
    Abstract: An organic EL element includes an anode and a cathode, and an organic compound layer between the anode and the cathode, the organic compound layer including a light-emitting sublayer, wherein the light-emitting sublayer contains a host, a metal complex acting as a first dopant, and a metal complex acting as a second dopant, the metal complex acting as the first dopant includes an unconjugated ligand and a conjugated ligand, and the first dopant has the lowest excited triplet level originating from the lowest excited triplet level of a unconjugated ligand.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: March 5, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kengo Kishino, Jun Kamatani
  • Patent number: 8384070
    Abstract: Provided is an organic electroluminescence device having high efficiency and a long lifetime. The organic electroluminescence device includes an anode; a cathode; and an organic compound layer interposed between the anode and the cathode, and including an emission layer formed of a first emission layer provided on an anode side and a second emission layer provided on a cathode side, in which the first emission layer contains a first host and a first dopant, the second emission layer contains a second host and a second dopant, the following relationship (a) is established between the first host and the first dopant, the following relationship (b) is established between the second host and the second dopant, and the following relationship (c) is established between the first host and the second host: |LUMO(H1)?LUMO(D1)|>|HOMO(H1)?HOMO(D1)|,??(a) |LUMO(H2)?LUMO(D2)|>|HOMO(H2)?HOMO(D2)|, and??(b) |HOMO(H1)|>|HOMO(H2)|.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: February 26, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kengo Kishino
  • Publication number: 20130037788
    Abstract: An organic light emitting device which includes a m-terphenyl compound having a high T1 energy is provided. In addition, a novel m-terphenyl compound is provided.
    Type: Application
    Filed: April 11, 2011
    Publication date: February 14, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsuya Kosuge, Jun Kamatani, Kengo Kishino, Hiroyuki Tomono