Patents by Inventor Hirokazu Miyashita

Hirokazu Miyashita 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: 20220140249
    Abstract: An organic compound represented by formula [1] or [2]: where X1 to X18 and X21 to X38 are each independently selected from a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an amino group, an aryl group, a heterocyclic group, an aryloxy group, a heteroaryloxy group, a silyl group, and a cyano group, in which at least one of X1 to X8 and at least one of X21 to X28 are substituted or unsubstituted amino groups; and each Y is oxygen, sulfur, selenium, tellurium, or a CR1CR2 group and may be the same or different, in which R1 and R2 are each independently selected from a hydrogen atom, an alkyl group, an alkoxy group, an amino group, an aryl group, a heterocyclic group, an aryloxy group, a heteroaryloxy group, a silyl group, or a cyano group.
    Type: Application
    Filed: October 27, 2021
    Publication date: May 5, 2022
    Inventors: Naoki Yamada, Jun Kamatani, Yosuke Nishide, Hirokazu Miyashita
  • Publication number: 20220135595
    Abstract: An organic compound represented by formula [1] or [2]: where X1 to X20 are each independently selected from a hydrogen atom, a halogen atom, and alkyl, alkoxy, amino, aromatic hydrocarbon, heterocyclic, aryloxy, heteroaryloxy, silyl, and cyano groups, in which at least one of X1 to X10 and at least one of X11 to X20 are each an amino group or a group containing an amino group; Y1 and Y3 are each oxygen, sulfur, selenium, tellurium, a carbonyl group, or a CR1R2 group and are optionally the same or different, in which R1 and R2 are each independently selected from a hydrogen atom, a halogen atom, and alkyl, alkoxy, amino, aromatic hydrocarbon, heterocyclic, aryloxy, heteroaryloxy, silyl, and cyano groups, and Y2 and Y4 are each oxygen, sulfur, selenium, or tellurium and are optionally the same or different.
    Type: Application
    Filed: November 2, 2021
    Publication date: May 5, 2022
    Inventors: Hirokazu Miyashita, Naoki Yamada, Yosuke Nishide, Jun Kamatani
  • Publication number: 20220081378
    Abstract: An organic compound represented by the following formula [1] or [2]: wherein R1 to R22 independently denote a substituent 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 aryloxy group, a substituted or unsubstituted silyl group, a cyano group, a trifluoromethyl group, a substituted or unsubstituted aromatic hydrocarbon group, and a substituted or unsubstituted heterocyclic group, and R5 and R6, and/or R7 and R8 may be bonded together to form a ring structure.
    Type: Application
    Filed: September 9, 2021
    Publication date: March 17, 2022
    Inventors: Hirokazu Miyashita, Naoki Yamada, Hiroki Ohrui, Yosuke Nishide, Jun Kamatani
  • Publication number: 20220000658
    Abstract: Provided is a heating body that enables high-speed production using a conventional rotary heat-sealing roll, has a wearing portion with sufficient strength to use by inserting a hand or the like, thereby being used safely and conveniently, and can be worn on the body or the like without being adhered thereto, and a method for producing the same.
    Type: Application
    Filed: June 14, 2018
    Publication date: January 6, 2022
    Applicants: FERRIC INC., S.T. CORPORATION
    Inventors: Eiji Miyashita, Hirokazu Miyashita, Hitoshi Usui, Mitsuhiro Sakamoto
  • Patent number: 11196007
    Abstract: An organic compound represented by formula (1) and an organic compound represented by formula (2). These organic compounds provide high color purity. In formulae (1) and (2), R1 to R24 are each independently selected from the group consisting of a hydrogen atom and a substituent.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: December 7, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yosuke Nishide, Hirokazu Miyashita, Naoki Yamada, Jun Kamatani, Shoma Hinata
  • Patent number: 11128791
    Abstract: Provided is a photoelectric conversion element including an anode, a photoelectric conversion layer that contains a first organic semiconductor, a second organic semiconductor, and a third organic semiconductor, and a cathode. As each of the first organic semiconductor, the second organic semiconductor, and the third organic semiconductor, a low-molecular weight organic semiconductor is used. The first organic semiconductor, the second organic semiconductor, and the third organic semiconductor have mass ratios that satisfy the following relationship: the first organic semiconductor?the second organic semiconductor?the third organic semiconductor. Further, when a total amount of the first organic semiconductor, the second organic semiconductor, and the third organic semiconductor is 100 mass %, a content of the second organic semiconductor is 6 mass % or more, and a content of the third organic semiconductor is 3 mass % or more.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: September 21, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tetsuo Takahashi, Satoru Shiobara, Jun Kamatani, Naoki Yamada, Tomona Yamaguchi, Hiroki Ohrui, Hironobu Iwawaki, Masumi Itabashi, Yosuke Nishide, Hirokazu Miyashita, Norifumi Kajimoto, Moe Takahira, Isao Kawata, Yuto Ito
  • Patent number: 11121182
    Abstract: An organic photoelectric conversion element includes an electron-collecting electrode, a hole-collecting electrode, and a photoelectric conversion portion which is disposed between the electron-collecting electrode and the hole-collecting electrode. The photoelectric conversion portion includes a first organic compound layer. A second organic compound layer is disposed between the hole-collecting electrode and the photoelectric conversion portion. The first organic compound layer contains a first compound having at least a fullerene skeleton and a second compound having a fluoranthene skeleton.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: September 14, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamatani, Naoki Yamada, Hiroki Ohrui, Kengo Kishino, Hironobu Iwawaki, Satoru Shiobara, Tomona Yamaguchi, Masumi Itabashi, Yosuke Nishide, Hirokazu Miyashita
  • Publication number: 20210202848
    Abstract: A light-emitting device includes a plurality of organic EL elements. Each of the organic EL elements includes a reflection electrode, a hole transport region, an electron-trapping luminescent layer, and a light extraction electrode in this order. The hole transport region has a sheet resistance of 4.0×107 ?/sq.? or more at a current of 0.1 nA/pixel, and the total thickness of the hole transport region and the electron-trapping luminescent layer is equivalent to an optical path length enabling emission from the electron-trapping luminescent layer to be enhanced.
    Type: Application
    Filed: March 15, 2021
    Publication date: July 1, 2021
    Inventors: Norifumi Kajimoto, Tetsuo Takahashi, Koji Ishizuya, Itaru Takaya, Hirokazu Miyashita, Takayuki Ito, Hiroaki Sano
  • Publication number: 20210139417
    Abstract: An organic compound represented by formula [1]. In the formula rings Q represented by formula [1-1] are each independently present at positions *1 and *2 such that positions * of the rings Q correspond to the positions *1 and *2. The rings Q may be the same or different. R4 and R5 represent groups each independently selected from the group consisting of a hydrogen atom and a substituted or unsubstituted aryl group. The rings Q are aromatic hydrocarbons. R1 to R3 represent groups 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 cyano group. At least one of R1 to R3 represents a cyano group.
    Type: Application
    Filed: September 2, 2020
    Publication date: May 13, 2021
    Inventors: Hiroki Ohrui, Hirokazu Miyashita, Satoru Shiobara, Yosuke Nishide, Naoki Yamada, Jun Kamatani
  • Publication number: 20210143335
    Abstract: An organic compound represented by formula [1]. The compounds are of the class of diacenaphthochrysene compound, useful as organic light emitting device. In the formula [1], R1 to R18 are each independently selected from the group consisting of a hydrogen atom and a substituent.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 13, 2021
    Inventors: Yosuke Nishide, Hirokazu Miyashita, Satoru Shiobara, Hiroki Ohrui, Naoki Yamada, Jun Kamatani
  • Publication number: 20210126214
    Abstract: An organic EL device includes at least an anode, a first light-emitting layer, an intermediate layer, a second light-emitting layer, and a cathode in this order. The intermediate layer is adjacent to the first light-emitting layer and the second light-emitting layer. The first light-emitting layer and the second light-emitting layer can trap electrons. A material constituting the intermediate layer is a hydrocarbon that has a HOMO level equal to or lower than the HOMO level of a host of the first light-emitting layer and that has a high S1 level.
    Type: Application
    Filed: December 31, 2020
    Publication date: April 29, 2021
    Inventors: Hirokazu Miyashita, Itaru Takaya, Takayuki Ito, Moe Takahira, Tomona Yamaguchi, Satoru Shiobara, Tomokazu Kotake, Haruna Iida, Naoki Yamada, Jun Kamatani
  • Patent number: 10985323
    Abstract: A light-emitting device includes a plurality of organic EL elements. Each of the organic EL elements includes a reflection electrode, a hole transport region, an electron-trapping luminescent layer, and a light extraction electrode in this order. The hole transport region has a sheet resistance of 4.0×107 ?/sq. or more at a current of 0.1 nA/pixel, and the total thickness of the hole transport region and the electron-trapping luminescent layer is equivalent to an optical path length enabling emission from the electron-trapping luminescent layer to be enhanced.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: April 20, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Norifumi Kajimoto, Tetsuo Takahashi, Koji Ishizuya, Itaru Takaya, Hirokazu Miyashita, Takayuki Ito, Hiroaki Sano
  • Patent number: 10978644
    Abstract: The present disclosure provides an organic compound expressed by the following General Formula 1: In General Formula 1, a partial structure Z1 represents a condensed polycyclic group that may include a nitrogen atom in a skeleton, and that includes at least one of a five-membered ring and a six-membered ring. The partial structure Z1 may include, as a substituent, a carbonyl group, a dicyanovinylidene group, a halogen atom, a cyano group, an alkyl group, an alkoxy group, an aromatic heterocyclic group, or an aryl group. R1 and R2 represent an alkyl group, aryl group, an aromatic heterocyclic group, a halogen group, or a cyano group. Ar1 represents an arylene group or a divalent aromatic heterocyclic group, and Ar2 and Ar3 represent an aryl group or an aromatic heterocyclic group. n represents an integer of 1 to 4.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: April 13, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Naoki Yamada, Jun Kamatani, Hiroki Ohrui, Hironobu Iwawaki, Masumi Itabashi, Yosuke Nishide, Hirokazu Miyashita, Satoru Shiobara, Tomona Yamaguchi, Tetsuo Takahashi
  • Publication number: 20210101864
    Abstract: An organic compound represented by formula (1). In the formula (1), R1 to R18 are each independently selected from the group consisting of a hydrogen atom and a substituent. At least one of R1 to R18 represents a substituent. The substituent is an aryl group having at least one cyano group or a heterocyclic group having at least one cyano group.
    Type: Application
    Filed: September 2, 2020
    Publication date: April 8, 2021
    Inventors: Naoki Yamada, Jun Kamatani, Hiroki Ohrui, Yosuke Nishide, Hirokazu Miyashita, Satoru Shiobara
  • Patent number: 10947212
    Abstract: The present invention provides an organic compound represented by general formula [1] described in claims. In general formula [1], Ar1 and Ar2 are each independently selected from an aryl group and a heteroaryl group. In general formula [1], R1 to R3 are each a hydrogen atom or a substituent. R4 is an electron-withdrawing substituent. X1 is oxygen or sulfur. Y1 to Y3 are each independently selected from a carbon atom and a nitrogen atom.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: March 16, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yosuke Nishide, Naoki Yamada, Hiroki Ohrui, Hironobu Iwawaki, Satoru Shiobara, Tomona Yamaguchi, Tetsuo Takahashi, Masumi Itabashi, Hirokazu Miyashita, Jun Kamatani
  • Publication number: 20210070677
    Abstract: An organic compound represented by formula [1] is provided. Ring A is a polycyclic aromatic hydrocarbon ring having a fluoranthene skeleton and having 16 to 60 carbon atoms and optionally has, as a substituent, a substituted or unsubstituted alkyl group or the like. Rings B1 and B2 are aromatic hydrocarbon rings having 6 to 18 carbon atoms and each have two or more electron withdrawing groups. Q1 and Q2 respectively represent one of the electron withdrawing groups of the ring B1 and one of the electron withdrawing groups of the ring B2, and are respectively located at an ortho position of the ring B1 and at an ortho position of the ring B2 with respect to the ring A.
    Type: Application
    Filed: September 2, 2020
    Publication date: March 11, 2021
    Inventors: Hirokazu Miyashita, Naoki Yamada, Satoru Shiobara, Isao Kawata, Yuto Ito, Jun Kamatani
  • Patent number: 10937979
    Abstract: An organic EL element includes a first electrode, a first luminescent layer, a second luminescent layer, a third luminescent layer, and a second electrode, in this order. The second luminescent layer is in contact with the first luminescent layer and the third luminescent layer. The first luminescent layer contains a red dopant and a first host material. The second luminescent layer contains a blue dopant and a second host material, and the third luminescent layer contains a green dopant and the second host material. The second host material is different from the first host material.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: March 2, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Yamada, Itaru Takaya, Jun Kamatani, Hirokazu Miyashita
  • Publication number: 20210057653
    Abstract: Provided is an organic compound represented by the general formula [1]: in the formula [1], R1 to R18 each represent a hydrogen atom, an alkyl group having 1 or more and 8 or less carbon atoms, an aromatic hydrocarbon group having 6 or more and 18 or less carbon atoms, or an aromatic heterocyclic group having 3 or more and 15 or less carbon atoms, and may be identical to or different from each other, and the plurality of R17's or the plurality of R18's may be identical to or different from each other, and the R1 to the R18 may each further have a substituent selected from a halogen atom and an alkyl group having 1 or more and 8 or less carbon atoms, and n represents an integer of 1 or more and 3 or less.
    Type: Application
    Filed: October 29, 2020
    Publication date: February 25, 2021
    Inventors: Naoki Yamada, Masumi Itabashi, Hironobu Iwawaki, Jun Kamatani, Hiroki Ohrui, Yosuke Nishide, Hirokazu Miyashita
  • Publication number: 20210057665
    Abstract: An organic EL element characterized by including a first electrode, a second electrode, and a first light-emitting layer, a second light-emitting layer, and a third light-emitting layer that are disposed between the first electrode and the second electrode, the first light-emitting layer, the second light-emitting layer, and the third light-emitting layer each containing a host material and a light-emitting material, in which the first light-emitting layer is a light-emitting layer that emits red light and green light, the second light-emitting layer is a light-emitting layer that emits blue light, and the third light-emitting layer is a light-emitting layer that emits green light.
    Type: Application
    Filed: October 22, 2020
    Publication date: February 25, 2021
    Inventors: Itaru Takaya, Naoki Yamada, Takayuki Ito, Hirokazu Miyashita
  • Publication number: 20210036232
    Abstract: An organic compound represented by formula [1]: wherein in formula [1], R1 to R10 are each independently selected from the group consisting of a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, a heterocyclic group, and an amino group, provided that at least one of R6 and R9 is a methyl group, and sets of R1 and R2, R2 and R3, and R3 and R4 are each independently optionally taken together to form a ring.
    Type: Application
    Filed: July 29, 2020
    Publication date: February 4, 2021
    Inventors: Satoru Shiobara, Naoki Yamada, Hirokazu Miyashita, Yuto Ito, Isao Kawata, Jun Kamatani