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).

  • Patent number: 9882148
    Abstract: A bibenzo[d]imidazolidene compound inert to oxygen is provided. A 1,1?,3,3?-tetraphenyl-2,2?-bibenzo[d]imidazolidene compound is represented by general formula (1). In formula (1), R1 to R28 are each independently selected from a hydrogen atom and a substituent. The substituent is any of a halogen atom, an alkyl group containing 1 or more and 8 or less carbon atoms, and a substituted or unsubstituted aryl group. At least one of R1 to R28 is the substituent.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: January 30, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Tetsuya Kosuge, Masumi Itabashi, Yosuke Nishide, Hirokazu Miyashita, Naoki Yamada, Tetsuo Takahashi, Satoru Shiobara
  • Patent number: 9846385
    Abstract: An organic light emitting element contains an anode and a cathode, and a light emitting layer arranged between the anode and the cathode, and the organic light emitting element further contains an organic compound layer which is arranged between the cathode and the light emitting layer, and touches the cathode. The organic compound layer contains an organic compound represented by the following general formula [1], where R1 to R4 represent substituents.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: December 19, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Tetsuya Kosuge, Masumi Itabashi, Yosuke Nishide, Hirokazu Miyashita, Naoki Yamada
  • Patent number: 9842997
    Abstract: An organic light emitting element contains an anode and a cathode, and a light emitting layer arranged between the anode and the cathode. The organic light emitting element further contains an organic compound layer which is arranged between the cathode and the light emitting layer and touches the cathode. The organic compound layer contains a bisimidazolidene compound represented by the following general formula [1], where R1 to R12 represent substituents.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: December 12, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Tetsuya Kosuge, Masumi Itabashi, Yosuke Nishide, Hirokazu Miyashita, Naoki Yamada
  • Patent number: 9818957
    Abstract: Provided is an organic light emitting element having stable performance in the air.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: November 14, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yosuke Nishide, Jun Kamatani, Hiroki Ohrui, Yojiro Matsuda, Masanori Muratsubaki, Satoru Shiobara, Tetsuo Takahashi, Haruna Iida
  • Patent number: 9812646
    Abstract: A novel organic compound having high stability is provided. The organic compound is represented by Formula (1) described in claim 1: In Formula (1), R1 and R2 each independently selected from a hydrogen atom, Substituent group A, and Substituent group B shown in claim 1, wherein at least one of R1 and R2 is selected from Substituent group A or Substituent group B; and R11 and R12 of a substituent belonging to Substituent group A are each independently selected from Substituent group B.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: November 7, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Shigemoto Abe, Tetsuya Kosuge, Takayuki Horiuchi, Yosuke Nishide, Hirokazu Miyashita, Kengo Kishino, Naoki Yamada, Akihito Saitoh
  • Publication number: 20170263870
    Abstract: A stable 2,2?-bibenzo[d]imidazolidene compound is provided. The 2,2?-bibenzo[d]imidazolidene compound is expressed by the following General Formula (1). In General Formula (1), Ar1 to Ar8 each represent a substituted or unsubstituted condensed ring. R1 to R8 each represent a hydrogen atom or a substituent.
    Type: Application
    Filed: October 20, 2015
    Publication date: September 14, 2017
    Inventors: Jun Kamatani, Yosuke Nishide, Hirokazu Miyashita, Naoki Yamada
  • Patent number: 9755165
    Abstract: Provided is an organic light emitting element having high light emitting efficiency. The organic light emitting element includes: an anode; a cathode; an emission layer placed between the anode and the cathode; and a hole transport layer formed between the anode and the emission layer, in which the hole transport layer contains a siloxane compound and a compound having a tertiary arylamine structure; and number of SP2 carbon atoms in the hole transport layer is ten times or less number of silicon atoms in the hole transport layer.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: September 5, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yosuke Nishide, Naoki Yamada, Jun Kamatani, Ryuji Ishii, Norifumi Kajimoto, Takayuki Ito, Nobutaka Mizuno, Koichi Ishige, Akihito Saitoh
  • Patent number: 9748490
    Abstract: An organic compound contains 8H-naphth[2,1-b]carbazole as the basic skeleton thereof. An organic light-emitting element includes an organic compound layer containing the organic compound. A display device and an image display unit each include the organic light-emitting element. The organic light-emitting element is also used in a lighting device and an image forming apparatus.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: August 29, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirokazu Miyashita, Ryuji Ishii, Masanori Muratsubaki, Masumi Itabashi, Jun Kamatani
  • Patent number: 9705089
    Abstract: Provided is an organic light emitting element having stable performance in the air. The organic light emitting element includes: an anode; a cathode; and an emission layer placed between the anode and the cathode, in which: the organic light emitting element further includes a first organic compound layer placed between the cathode and the emission layer, and a second organic compound layer placed between the emission layer and the first organic compound layer, and contacted with the first organic compound layer; the first organic compound layer contains a first organic compound; the second organic compound layer contains a second organic compound; and the first organic compound includes a viologen compound represented by the following general formula [1] and the second organic compound includes an organic compound different from the viologen compound.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: July 11, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yosuke Nishide, Jun Kamatani, Hiroki Ohrui, Yojiro Matsuda, Masanori Muratsubaki, Satoru Shiobara, Tetsuo Takahashi, Haruna Iida
  • Publication number: 20170155059
    Abstract: A bibenzo[d]imidazolidene compound inert to oxygen is provided. A 1,1?,3,3?-tetraphenyl-2,2?-bibenzo[d]imidazolidene compound is represented by general formula (1). In formula (1), R1 to R28 are each independently selected from a hydrogen atom and a substituent. The substituent is any of a halogen atom, an alkyl group containing 1 or more and 8 or less carbon atoms, and a substituted or unsubstituted aryl group. At least one of R1 to R28 is the substituent.
    Type: Application
    Filed: June 22, 2015
    Publication date: June 1, 2017
    Applicant: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Tetsuya Kosuge, Masumi Itabashi, Yosuke Nishide, Hirokazu Miyashita, Naoki Yamada, Tetsuo Takahashi, Satoru Shiobara
  • Publication number: 20170133598
    Abstract: To provide a novel organic compound suitable for an organic light emitting device. This invention provides an organic compound having the skeleton represented by Formula (1).
    Type: Application
    Filed: January 24, 2017
    Publication date: May 11, 2017
    Inventors: Jun Kamatani, Shigemoto Abe, Masashi Hashimoto, Naoki Yamada, Akihito Saitoh
  • Publication number: 20170092882
    Abstract: Provided is an organic metal complex having a structure represented by the following general formula (1): MLmL?n??(1) where: M represents a metal atom selected from Ir, Pt, Rh, Os, and Zn; L and L?, which are different from each other, each represent a bidentate ligand; m represents an integer of 1 to 3 and n represents an integer of 0 to 2, provided that m+n is 3; a partial structure MLm represents a structure represented by the following general formula (2): and a partial structure ML?n represents a structure including a monovalent bidentate ligand.
    Type: Application
    Filed: December 9, 2016
    Publication date: March 30, 2017
    Inventors: Jun Kamatani, Masashi Hashimoto, Satoshi Igawa, I, Shinjiro Okada
  • Patent number: 9601704
    Abstract: Provided is a long-lifetime organic light-emitting element having a good device lifetime characteristic. The organic light-emitting device includes: a pair of electrodes; and an organic compound layer placed between the pair of electrodes, in which the organic compound layer includes an iridium complex having a specific structure and a different kind of metal complex.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: March 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirokazu Miyashita, Kengo Kishino, Jun Kamatani, Shigemoto Abe, Naoki Yamada, Tetsuya Kosuge, Takayuki Horiuchi, Yosuke Nishide, Akihito Saitoh
  • Patent number: 9601701
    Abstract: The present invention relates to a novel stable benzo[h]hexaphene compound and an organic light-emitting device including the compound. The present invention provides a benzo[h]hexaphene shown in claim 1.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: March 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirokazu Miyashita, Jun Kamatani, Tetsuya Kosuge, Akihito Saitoh
  • Patent number: 9590183
    Abstract: The present invention provides a novel stable benzo[a]naphtho[2,1-c]tetracene compound and an organic light-emitting device including the compound. Provided is an organic compound represented by Formula [1]. In Formula [1], R1 to R16 are each independently selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms, a cyano group, a diphenylamino group, a pyridyl group, and an aryl group.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: March 7, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirokazu Miyashita, Jun Kamatani, Akihito Saitoh, Yosuke Nishide
  • Patent number: 9590199
    Abstract: To provide a novel organic compound suitable for an organic light emitting device. This invention provides an organic compound having the skeleton represented by Formula (1).
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: March 7, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Shigemoto Abe, Masashi Hashimoto, Naoki Yamada, Akihito Saitoh
  • Patent number: 9554442
    Abstract: Provided is an organic metal complex having a structure represented by the following general formula (1): MLmL?n??(1) where: M represents a metal atom selected from Ir, Pt, Rh, Os, and Zn; L and L?, which are different from each other, each represent a bidentate ligand; m represents an integer of 1 to 3 and n represents an integer of 0 to 2, provided that m+n is 3; a partial structure MLm represents a structure represented by the following general formula (2): and a partial structure ML?n represents a structure including a monovalent bidentate ligand.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: January 24, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Masashi Hashimoto, Satoshi Igawa, Shinjiro Okada
  • Publication number: 20170012215
    Abstract: The present disclosure provides an organic light emitting element which has a pair of electrodes and an organic compound layer disposed therebetween and in which the organic compound layer contains an organic compound represented by the following general formula [1], wherein in the formula [1], Ar1 and Ar2 each independently represent an aromatic hydrocarbon group or a heteroaromatic ring group, R1 to R4 are each independently selected from a hydrogen atom or a substituent, R1 and R2 and R3 and R4 each may form a benzene ring, wherein the benzene ring may have at least one substituent.
    Type: Application
    Filed: July 8, 2016
    Publication date: January 12, 2017
    Inventors: Hirokazu Miyashita, Jun Kamatani
  • Patent number: 9515270
    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: Grant
    Filed: November 25, 2011
    Date of Patent: December 6, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Kosuge, Jun Kamatani, Shigemoto Abe, Kengo Kishino
  • Patent number: 9466804
    Abstract: Provided is an organic light-emitting element having high light-emitting efficiency and a long element lifetime. The organic light-emitting element includes an anode, a cathode, and an organic compound layer placed between the anode and the cathode, and the organic compound layer includes an iridium complex represented by the following general formula [1] and a metal complex represented by the following general formula [9]. Ir(L1)(L2)(L3)??[1] MLL???[9].
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: October 11, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kengo Kishino, Takayuki Horiuchi, Akihito Saitoh, Jun Kamatani, Naoki Yamada, Tetsuya Kosuge, Shigemoto Abe, Yosuke Nishide, Hirokazu Miyashita