Patents by Inventor Jun Kamatani

Jun Kamatani 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).

  • Organic light-emitting device
    Patent number: 8455113
    Abstract: A light-emitting layer emits light having an emission spectrum having a primary peak in the range of wavelengths of 430 to 480 nm. The light-emitting layer contains a host compound and a dopant compound. The dopant compound has an electron affinity of 2.93 eV or more higher that is than the host compound. The dopant compound in the lowest excited triplet state has an energy of 1.95 eV or less that is lower than the host compound in the lowest excited triplet state. The dopant compound has a smaller band gap than the host compound. The dopant compound is a hydrocarbon compound.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: June 4, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Yamada, Jun Kamatani, Tomona Yamaguchi, Akihito Saitoh
  • NOVEL ORGANIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING SAME
    Publication number: 20130126857
    Abstract: A novel organic compound suitably used for a green-light-emitting device and an organic light-emitting device are provided. An organic light-emitting device and an image display apparatus containing a naphtho[2?,3?:5,6]indeno[1,2,3-cd]pyrene derivative represented by general formula (1) as a dopant: wherein in general formula (1), R1 to R16 are each independently selected from a hydrogen atom, a halogen atom, substituted or unsubstituted alkyl groups, substituted or unsubstituted alkoxy groups, substituted or unsubstituted amino groups, substituted or unsubstituted aryl groups, and substituted or unsubstituted heterocyclic groups, and at least one of R3, R4, R9, and R10 is selected from substituted or unsubstituted aryl groups and substituted or unsubstituted heterocyclic groups.
    Type: Application
    Filed: July 26, 2011
    Publication date: May 23, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tomonari Horikiri, Jun Kamatani, Masanori Muratsubaki
  • ORGANIC LIGHT-EMITTING DEVICE MATERIAL HAVING DIBENZOSUBERONE SKELETON
    Publication number: 20130112965
    Abstract: The present invention provides an organic light-emitting device material that exhibits high emission efficiency and is used in an organic light-emitting device having a low driving voltage.
    Type: Application
    Filed: July 8, 2011
    Publication date: May 9, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takeshi Sekiguchi, Akihito Saitoh, Jun Kamatani, Hirokazu Miyashita
  • NOVEL SPIRO(ANTHRACENE-9,9'-FLUOREN)-10-ONE COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20130105786
    Abstract: A novel and stable spiro(anthracene-9,9-fluoren)-10-one compound represented by general formula [1] is provided.
    Type: Application
    Filed: July 8, 2011
    Publication date: May 2, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Taiki Watanabe, Masashi Hashimoto, Jun Kamatani, Akihito Saitoh
  • Organic compound
    Patent number: 8431711
    Abstract: An organic compound is represented by general formula (1): where R1 to R18 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 or unsubstituted amino group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heterocyclic group.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: April 30, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Naoki Yamada, Akihito Saitoh
  • Dibenzo[C,G]fluorene compound and organic light-emitting device using same
    Patent number: 8431249
    Abstract: An organic light-emitting device is provided which efficiently emits light with high brightness and has durability. The organic light-emitting device includes a dibenzo[c,g]fluorene compound having two dibenzo[c,g]fluorene skeletons, and has an organic compound layer containing the dibenzo[c,g]fluorene compound.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: April 30, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Chiaki Nishiura, Jun Kamatani, Shigemoto Abe
  • NOVEL ORGANIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    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
  • NOVEL ORGANIC COMPOUND
    Publication number: 20130056722
    Abstract: A novel organic compound is suitable for emitting green light. An organic light-emitting device includes the novel organic compound.
    Type: Application
    Filed: May 11, 2011
    Publication date: March 7, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yosuke Nishide, Jun Kamatani, Akihito Saitoh
  • Organic EL element
    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
  • CONDENSED POLYCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT INCLUDING THE SAME
    Publication number: 20130048966
    Abstract: An organic light emitting element which realizes a high efficiency and a long light emission life is provided. An organic compound represented by the general formula [1] described in claim 1 is provided. In the formula [1], R1 to R22 are each independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heterocyclic group.
    Type: Application
    Filed: August 21, 2012
    Publication date: February 28, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takayuki Horiuchi, Jun Kamatani, Akihito Saitoh
  • CONDENSED POLYCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT INCLUDING THE SAME
    Publication number: 20130048965
    Abstract: A condensed polycyclic compound which emits green light and which has a high chemical stability and an organic light emitting element including the same are provided. A condensed polycyclic compound represented by the general formula [1] or [2] described in claim 1 is provided. In the formula [1] and [2], R1 to R10 are independently selected from the group consisting of a hydrogen atom, a straight or branched alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted aromatic hydrocarbon group having 6 to 22 carbon atoms.
    Type: Application
    Filed: August 21, 2012
    Publication date: February 28, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsuya Kosuge, Jun Kamatani, Kenichi Ikari
  • Compound and organic light emitting device using the compound
    Patent number: 8384286
    Abstract: A novel mono(benzo[k]fluoranthene) compound having a molecular structure containing at least one condensed ring aromatic group which is tricyclic or more at any of 7- to 9-positions of benzo[k]fluoranthene. Also an organic light emitting device including at least a pair of electrodes formed of an anode and a cathode, and a layer formed of an organic compound, the layer being interposed between the pair of electrodes, in which the layer formed of an organic compound contains a compound represented by the following structural formula. An organic light emitting device in which the layer is a light emitting layer.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: February 26, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Igawa, Shinjiro Okada, Jun Kamatani, Naoki Yamada, Masashi Hashimoto, Keiji Okinaka, Chika Nishi, Akihito Saitoh, Takao Takiguchi
  • NOVEL ORGANIC COMPOUND
    Publication number: 20130043463
    Abstract: There are provided a novel organic compound that has an excellent luminescent hue and that can produce high-efficiency, high-intensity, and long-life light output, and an organic light-emitting device containing the novel organic compound. There are provided 12,12-dimethyl-12H-benzo[5,6]-s-indaceno[1,2,3-cd]pyrene having a substituent at a particular position, which can emit green light with high color purity, and an organic light-emitting device containing this compound. The substituent at a particular position is selected from a hydrogen atom, substituted and unsubstituted alkyl groups, and substituted and unsubstituted aryl groups.
    Type: Application
    Filed: April 19, 2011
    Publication date: February 21, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Naoki Yamada, Minako Nakasu, Jun Kamatani, Akihito Saitoh
  • Dibenzo[c,g]fluorene compound and an organic light-emitting device using the same
    Patent number: 8377574
    Abstract: An organic light-emitting device which has high emission efficiency and high durability even at low drive voltage is provided. An organic light-emitting device including an anode, a cathode, and an organic compound layer which is interposed between the anode and the cathode, wherein the organic compound layer include at least one dibenzo[c,g]fluorene compound represented by the following General Formula (1).
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: February 19, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigemoto Abe, Jun Kamatani, Chiaki Nishiura
  • NOVEL 10,10-DIALKYLANTHRONE COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20130037790
    Abstract: A novel stable 10,10-dialkylanthrone compound is provided.
    Type: Application
    Filed: April 11, 2011
    Publication date: February 14, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Jun Kamatani, Yosuke Nishide, Naoki Yamada, Akihito Saitoh
  • ORGANIC LIGHT-EMITTING DEVICE
    Publication number: 20130037791
    Abstract: An organic light-emitting device that achieves highly efficient emission and low-voltage operation is provided. The organic light-emitting device contains a 9H-xanthen-9-one derivative.
    Type: Application
    Filed: April 11, 2011
    Publication date: February 14, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takayuki Horiuchi, Jun Kamatani, Naoki Yamada, Kengo Kishino, Akihito Saitoh
  • NOVEL NAPHTHOTHIOPHENE COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20130037789
    Abstract: The present invention provides a novel naphthothiophene compound having a high lowest excited triplet level (T1).
    Type: Application
    Filed: April 11, 2011
    Publication date: February 14, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Naoki Yamada, Jun Kamatani, Akihito Saitoh
  • NOVEL m-TERPHENYL COMPOUND AND ORGANIC LIGHT EMITTING DEVICE INCLUDING THE SAME
    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
  • NOVEL ORGANIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20130038515
    Abstract: There is provided a novel organic compound suitably used for a blue light-emitting device and an organic light-emitting device including the novel organic compound. The organic compound is an acephenanthryleno[4,5-k]benzo[e]acephenanthrylene derivative.
    Type: Application
    Filed: April 19, 2011
    Publication date: February 14, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tomonari Horikiri, Hiroyuki Tomono, Jun Kamatani
  • ORGANIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE HAVING THE SAME
    Publication number: 20130033416
    Abstract: An organic compound contains indacenodiperylene as the basic skeleton.
    Type: Application
    Filed: August 1, 2012
    Publication date: February 7, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Jun Kamatani, Naoki Yamada, Tetsuya Kosuge, Takayuki Horiuchi, Yosuke Nishide, Hirokazu Miyashita, Akihito Saitoh