Patents by Inventor Satoshi Igawa

Satoshi Igawa 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: 20160246152
    Abstract: Provided is an electrochromic material that displays a yellow color and can be reversibly colored and breached in a stable manner through chemical reduction. To be more specific, provided is an organic compound represented by general formula (1) or (2). In general formulae (1) and (2), X1 and X2 are each independently selected from a substituted or unsubstituted alkyl group and a substituted or unsubstituted aralkyl group. R11 to R20 represent a hydrogen atom or a substituent. A1? and A2? each independently represent a monovalent anion.
    Type: Application
    Filed: February 18, 2016
    Publication date: August 25, 2016
    Inventors: Satoshi Igawa, Kenji Yamada
  • Patent number: 9067862
    Abstract: A condensed polycyclic compound is represented by the following Formula [1]: wherein in Formula [1], R1 to R16 each represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, a substituted amino group, an aryl group that may optionally have a substituent group, or a heterocyclic group that may optionally have a substituent group, provided that at least one of R1, R2, R7 and R8 is an aryl group that may optionally have a substituent group, or a heterocyclic group that may optionally have a substituent group.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: June 30, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masashi Hashimoto, Satoshi Igawa, Naoki Yamada, Takayuki Horiuchi
  • Patent number: 9051232
    Abstract: Provided is an organic light emitting device having high light emitting efficiency and good emission color purity. The organic light emitting device includes an anode, a cathode, and an organic compound layer which is sandwiched between the anode and the cathode, in which one of the anode and the cathode is transparent or semi-transparent and the organic compound layer contains at least one kind of perylene compound represented by the following general formula (1): where R1 to R8 each represent a hydrogen atom or a substituted or unsubstituted alkyl group; and Ar1 to Ar4 each represent a substituent represented by the following general formula (2) or (3).
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: June 9, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Kosuge, Satoshi Igawa
  • Publication number: 20150076478
    Abstract: A metal coordination compound represented by any one of formulas (1)-(5). An organic luminescence device including an anode, a cathode, and an organic layer, which contains the metal coordination compound, disposed between the anode and the cathode.
    Type: Application
    Filed: November 6, 2014
    Publication date: March 19, 2015
    Inventors: Jun Kamatani, Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Seishi Miura, Koji Noguchi, Takashi Moriyama, Satoshi Igawa, Manabu Furugori
  • Patent number: 8920943
    Abstract: A metal coordination compound represented by the formula: An organic luminescence device including an anode, a cathode, and an organic layer, which contains the metal coordination compound, disposed between the anode and the cathode.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: December 30, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Shinjiro Okada, Akira Tsuboyama, Takao Takiguchi, Seishi Miura, Koji Noguchi, Takashi Moriyama, Satoshi Igawa, Manabu Furugori
  • Patent number: 8808875
    Abstract: The present invention provides a high-performance organic EL device and a novel compound used for the device. The novel compound of the present invention is a fluoranthene compound having the following general formula (2): The organic EL device of the present invention is an organic EL device comprising: an anode; a cathode; and an organic compound layer interposed between the anode and the cathode, wherein the organic compound layer has the fluoranthene compound.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: August 19, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Shinjiro Okada, Takao Takiguchi, Akihito Saitoh, Keiji Okinaka, Satoshi Igawa, Naoki Yamada, Masashi Hashimoto
  • 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
  • Patent number: 8586207
    Abstract: Provided are a fused polycyclic compound obtained by expanding the conjugated system of a chrysene skeleton, and an organic light emitting device using the compound. The organic light emitting device has an optical output with high efficiency and high luminance, and is extremely durable.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: November 19, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Horiuchi, Jun Kamatani, Satoshi Igawa, Naoki Yamada, Masashi Hashimoto, Tetsuya Kosuge
  • 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
  • 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
  • Patent number: 8318395
    Abstract: Provided is a novel dibenzo[a,c]anthracene compound having substituents, which can be used in an organic light emitting device.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: November 27, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihito Saitoh, Keiji Okinaka, Satoshi Igawa, Jun Kamatani, Naoki Yamada, Masashi Hashimoto, Masanori Muratsubaki, Takao Takiguchi, Akihiro Senoo, Shinjiro Okada, Minako Nakasu
  • Patent number: 8318321
    Abstract: There are provided a compound represented by the general formula (1) and an organic light-emitting device which comprises the compound and has an optical output with remarkably high efficiency and high luminance.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: November 27, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Igawa, Shinjiro Okada, Takao Takiguchi, Keiji Okinaka, Naoki Yamada, Masashi Hashimoto
  • Patent number: 8318326
    Abstract: A fused polycyclic compounds is represented by the general formula (I): wherein X1 to X18 each represent, independently of one another, a hydrogen atom, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted amino group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: November 27, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Yamada, Minako Nakasu, Satoshi Igawa, Masashi Hashimoto
  • Patent number: 8293383
    Abstract: There is provided a benzo[a]fluoranthene compound represented by the formula (I): wherein: at least one R11 to R22 represents Rm represented by the formula (i): Rm=—Ar1—X1??(i) wherein: Ar1 represents any one of the following groups (i-a) to (i-c): (i-a) a substituted or unsubstituted phenylene group, (i-b) a substituted or unsubstituted monocyclic heterocyclic group, and (i-c) a composite substituent formed of two substituents selected from substituents corresponding to the groups (i-a) and (i-b); and X1 represents a substituted or unsubstituted alkyl group having 2 or more carbon atoms, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted alkynyl group; and R11 to R22 none of which is represented by Rm each represent a hydrogen atom, a halogen atom or the like, and R11 to R22 none of which is represented by Rm may be identical to or different from each other.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: October 23, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Horiuchi, Naoki Yamada, Satoshi Igawa, Masashi Hashimoto, Minako Nakasu, Jun Kamatani, Shinjiro Okada
  • Patent number: 8288016
    Abstract: Provided is an organic light-emitting device having good durability.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: October 16, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masashi Hashimoto, Satoshi Igawa, Naoki Yamada, Takayuki Horiuchi, Shinjiro Okada
  • Patent number: 8288017
    Abstract: There are provided a novel fused ring aromatic compound and an organic light-emitting device which has an optical output with extremely high efficiency and luminance, and also has extremely high durability. The organic light-emitting device includes an anode, a cathode, and a layer including an organic compound interposed between the anode and the cathode, wherein the layer comprises a fused ring aromatic compound represented by the general formula (I): wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, and R16 each represent, independently of one another, a hydrogen atom, an alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, a substituted amino group, or a halogen atom.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: October 16, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Igawa, Masashi Hashimoto, Shinjiro Okada, Takao Takiguchi, Keiji Okinaka
  • Patent number: 8283053
    Abstract: To provide a high-performance organic light emitting device and a novel compound possessed by the device. Provided are a novel fluoranthene derivative and an organic light emitting compound having the derivative.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: October 9, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masashi Hashimoto, Akihito Saitoh, Naoki Yamada, Satoshi Igawa, Jun Kamatani, Takao Takiguchi, Shinjiro Okada
  • Publication number: 20120168739
    Abstract: Provided is a novel fluorene compound, which is represented by the following general formula (1):
    Type: Application
    Filed: March 8, 2012
    Publication date: July 5, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: JUN KAMATANI, SHINJIRO OKADA, TAKAO TAKIGUCHI, SATOSHI IGAWA, MASASHI HASHIMOTO, MINAKO NAKASU, RYOTA OOISHI
  • Patent number: 8158835
    Abstract: Provided is a novel fluorene compound, which is represented by the following general formula (1):
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: April 17, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Shinjiro Okada, Takao Takiguchi, Satoshi Igawa, Masashi Hashimoto, Minako Nakasu, Ryota Ooishi
  • Publication number: 20120085996
    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: Application
    Filed: December 19, 2011
    Publication date: April 12, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Jun Kamatani, Isao Kawata, Naoki Yamada, Akihito Saitoh, Hiroyuki Tomono, Kengo Kishino, Masashi Hashimoto, Satoshi Igawa, Keiji Okinaka