Patents by Inventor Shigemoto Abe

Shigemoto Abe 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: 7960039
    Abstract: An amino compound for an organic light-emitting device of general formula [1]: wherein X1 is bonded to the pair of fluorenyl groups at meta-positions to each other and is substituted or unsubstituted aromatic ring, fused polycyclic ring, or heterocyclic ring; Y1 and Y2 are each substituted or unsubstituted alkyl, aryl, or heterocyclic and are the same or different; Z1 to Z4 are each hydrogen, halogen, or substituted or unsubstituted alkyl, aralkyl, alkenyl, alkynyl, alkoxy, aryl, or heterocyclic and are the same or different; R1 to R4 are each hydrogen, halogen, or substituted or unsubstituted alkyl, aryl, or heterocyclic and are the same or different; a and d are each 1 to 4; and b and c are each 1 to 3.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: June 14, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigemoto Abe, Akihiro Senoo, Naoki Yamada, Chika Negishi
  • Publication number: 20110042663
    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: Application
    Filed: May 14, 2009
    Publication date: February 24, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shigemoto Abe, Jun Kamatani, Chiaki Nishiura
  • Patent number: 7883786
    Abstract: The invention provides a novel compound used as a material for organic light-emitting elements, and an organic light-emitting element which has highly efficient and highly luminescent optical power and is superior in durability. The organic light-emitting element includes an anode and a cathode, and a layer which contains an organic compound and is held between the anode and the cathode.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: February 8, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigemoto Abe, Akihiro Senoo, Jun Kamatani, Satoshi Igawa, Naoki Yamada
  • Patent number: 7876596
    Abstract: A novel nonvolatile memory element, which can be manufactured by a simple and high yield process by using an organic material and has a high on/off ratio, and a method for manufacturing such nonvolatile memory element. A switching layer (14) made of an electrical insulating radical polymer is provided between an anode layer (12) and a cathode layer (16). Further, a hole injection transport layer (13) is provided between the switching layer (14) and the anode layer (12), and an electron injection transport layer (15), between the switching layer (14) and the cathode layer (16). An intermediate layer is provided between the switching layer and the adjacent layer. The radical polymer is preferably nitroxide radical polymer. The switching layer (14), the hole injection transport layer (13) and the electron injection transport layer (15) are formed by being stacked by a wet process.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: January 25, 2011
    Assignee: Waseda University
    Inventors: Hiroyuki Nishide, Kenji Honda, Yasunori Yonekuta, Takashi Kurata, Shigemoto Abe
  • Publication number: 20090115323
    Abstract: An oligofluorene compound is represented by the General Formula (1) below wherein in Formula (1) P1 represents a hydrogen atom, a halogen atom, or a linear or branched alkyl group having 1 to 20 carbon atoms; P2 represents a hydrogen atom, a halogen atom, a substituted or unsubstituted linear or branched alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted 2-naphthyl group; R1 and R2 each represent a hydrogen atom, a halogen atom, or a linear or branched alkyl group having 1 to 20 carbon atoms; and n represents integer of 2 to 4.
    Type: Application
    Filed: October 30, 2008
    Publication date: May 7, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Ryota Ooishi, Takao Takiguchi, Jun Kamatani, Tetsuya Kosuge, Shigemoto Abe
  • Publication number: 20090091252
    Abstract: The present invention provides a novel binaphthyl compound and an organic light emitting element having a good light emitting efficiency and a high durability at a low driving voltage.
    Type: Application
    Filed: October 2, 2008
    Publication date: April 9, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsuya Kosuge, Jun Kamatani, Shigemoto Abe, Ryota Ooishi, Kengo Kishino
  • Publication number: 20080297034
    Abstract: The invention provides a novel compound used as a material for organic light-emitting elements, and an organic light-emitting element which has highly efficient and highly luminescent optical power and is superior in durability. The organic light-emitting element includes an anode and a cathode, and a layer which contains an organic compound and is held between the anode and the cathode.
    Type: Application
    Filed: April 1, 2008
    Publication date: December 4, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shigemoto Abe, Akihiro Senoo, Jun Kamatani, Satoshi Igawa, Naoki Yamada
  • Publication number: 20080259680
    Abstract: A novel nonvolatile memory element, which can be manufactured by a simple and high yield process by using an organic material and has a high on/off ratio, and a method for manufacturing such nonvolatile memory element. A switching layer (14) made of an electrical insulating radical polymer is provided between an anode layer (12) and a cathode layer (16). Further, a hole injection transport layer (13) is provided between the switching layer (14) and the anode layer (12), and an electron injection transport layer (15), between the switching layer (14) and the cathode layer (16). An intermediate layer is provided between the switching layer and the adjacent layer. The radical polymer is preferably nitroxide radical polymer. The switching layer (14), the hole injection transport layer (13) and the electron injection transport layer (15) are formed by being stacked by a wet process.
    Type: Application
    Filed: November 4, 2005
    Publication date: October 23, 2008
    Applicant: Waseda University
    Inventors: Hiroyuki Nishide, Kenji Honda, Yasunori Yonekuta, Takashi Kurata, Shigemoto Abe
  • Publication number: 20070228941
    Abstract: An amino compound for an organic light-emitting device of general formula [1]: wherein X1 is bonded to the pair of fluorenyl groups at meta-positions to each other and is substituted or unsubstituted aromatic ring, fused polycyclic ring, or heterocyclic ring; Y1 and Y2 are each substituted or unsubstituted alkyl, aryl, or heterocyclic and are the same or different; Z1 to Z4 are each hydrogen, halogen, or substituted or unsubstituted alkyl, aralkyl, alkenyl, alkynyl, alkoxy, aryl, or heterocyclic and are the same or different; R1 to R4 are each hydrogen, halogen, or substituted or unsubstituted alkyl, aryl, or heterocyclic and are the same or different; a and d are each 1 to 4; and b and c are each 1 to 3.
    Type: Application
    Filed: March 23, 2007
    Publication date: October 4, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shigemoto Abe, Akihiro Senoo, Naoki Yamada, Chika Negishi