Patents by Inventor Naoki Takaya

Naoki Takaya 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: 11950437
    Abstract: An organic light emitting device including, in sequence, a first electrode, a first charge transport layer, a second charge transport layer in contact with the first charge transport layer, a light emitting layer in contact with the second charge transport layer, and a second electrode, wherein the first charge transport layer includes a first material and a second material, the second charge transport layer includes the second material and a third material, and the light emitting layer includes the third material and a fourth material.
    Type: Grant
    Filed: December 29, 2022
    Date of Patent: April 2, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Naoki Yamada, Satoru Shiobara, Itaru Takaya, Jun Kamatani
  • Patent number: 11917844
    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: Grant
    Filed: October 22, 2020
    Date of Patent: February 27, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Itaru Takaya, Naoki Yamada, Takayuki Ito, Hirokazu Miyashita
  • Patent number: 11352652
    Abstract: Provided is a novel method for producing 4-aminocinnamic acid from 4-nitrophenylalanine. This method comprises: converting 4-nitrophenylalanine into 4-nitrocinnamic acid; and converting 4-nitrocinnamic acid into 4-aminocinnamic acid.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: June 7, 2022
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Naoki Takaya, Shunsuke Masuo, Yukie Kawasaki, Hajime Minakawa
  • Publication number: 20210017555
    Abstract: Provided is a novel method for producing 4-aminocinnamic acid from 4-nitrophenylalanine. This method comprises: converting 4-nitrophenylalanine into 4-nitrocinnamic acid; and converting 4-nitrocinnamic acid into 4-aminocinnamic acid.
    Type: Application
    Filed: March 4, 2019
    Publication date: January 21, 2021
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Naoki TAKAYA, Shunsuke MASUO, Yukie KAWASAKI, Hajime MINAKAWA
  • Patent number: 10053716
    Abstract: This 4-amino cinnamic acid production method using the enzyme ammonia lyase can efficiently convert 4-amino phenylalanine into 4-amino cinnamic acid. This 4-amino cinnamic acid production method is characterized by converting 4-amino phenylalanine into 4-amino cinnamic acid by using phenylalanine ammonia-lyase, which comprises the amino acid sequence represented in sequence number 2 derived from the Rhodotorula glutinis yeast.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: August 21, 2018
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Kazunobu Konishi, Naoki Takaya, Shunsuke Masuo, Shengmin Zhou
  • Patent number: 9920343
    Abstract: Provided is a method for producing an aniline derivative by fermentation from a carbon source such as glucose. The method comprises the following steps: production of microorganisms capable of producing 1.8 g/L or more of 4-aminophenylalanine (4APhe) under prescribed culture conditions by introducing at least three exogenous genes into microorganisms having the ability to biosynthesize 4-aminophenylpyruvic acid from chorismic acid; and production of at least one aniline derivative selected from the group consisting of 4-aminophenylalanine (4APhe), 4-aminocinnamic acid (4ACA), 2-(4-aminophenyl)aldehyde, 4-aminophenylacetic acid, and 4-aminophenethylethanol (4APE) by bringing these microorganisms into contact with a carbon source under conditions suited to the growth and/or maintenance of these microorganisms.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: March 20, 2018
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Kazunobu Konishi, Naoki Takaya, Shunsuke Masuo
  • Publication number: 20170022528
    Abstract: Provided is a method for producing an aniline derivative by fermentation from a carbon source such as glucose. The method comprises the following steps: production of microorganisms capable of producing 1.8 g/L or more of 4-aminophenylalanine (4APhe) under prescribed culture conditions by introducing at least three exogenous genes into microorganisms having the ability to biosynthesize 4-aminophenylpyruvic acid from chorismic acid; and production of at least one aniline derivative selected from the group consisting of 4-aminophenylalanine (4APhe), 4-aminocinnamic acid (4ACA), 2-(4-aminophenyl)aldehyde, 4-aminophenylacetic acid, and 4-aminophenethylethanol (4APE) by bringing these microorganisms into contact with a carbon source under conditions suited to the growth and/or maintenance of these microorganisms.
    Type: Application
    Filed: September 14, 2016
    Publication date: January 26, 2017
    Inventors: Kazunobu KONISHI, Naoki TAKAYA, Shunsuke MASUO
  • Publication number: 20160362711
    Abstract: This 4-amino cinnamic acid production method using the enzyme ammonia lyase can efficiently convert 4-amino phenylalanine into 4-amino cinnamic acid. This 4-amino cinnamic acid production method is characterized by converting 4-amino phenylalanine into 4-amino cinnamic acid by using phenylalanine ammonia-lyase, which comprises the amino acid sequence represented in sequence number 2 derived from the Rhodotorula glutinis yeast.
    Type: Application
    Filed: August 5, 2016
    Publication date: December 15, 2016
    Inventors: Kazunobu KONISHI, Naoki TAKAYA, Shunsuke MASUO, Shengmin ZHOU
  • Patent number: 9187771
    Abstract: The present invention provides a phenylpyruvate reductase for efficiently obtaining highly pure, optically active 3-phenyllactate and 4-hydroxyphenyllactate; a gene coding for the same; and a method for manufacturing optically active 3-phenyllactate and 4-hydroxyphenyllactate employing the same.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: November 17, 2015
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Kazunobu Konishi, Naoki Takaya
  • Publication number: 20140073024
    Abstract: The present invention provides a phenylpyruvate reductase for efficiently obtaining highly pure, optically active 3-phenyllactate and 4-hydroxyphenyllactate; a gene coding for the same; and a method for manufacturing optically active 3-phenyllactate and 4-hydroxyphenyllactate employing the same.
    Type: Application
    Filed: January 30, 2012
    Publication date: March 13, 2014
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Kazunobu Konishi, Naoki Takaya
  • Patent number: 7474664
    Abstract: An ATM switch includes a first stage, a second stage and a third stage each of which stages includes at least one basic switch, wherein the first stage, the second stage and the third stage are connected. The basic switch includes a part which refers to time information written in a header of an input cell and switches cells to an output port in an ascending order of the time information. In addition, the ATM switch includes a cell distribution part in the basic switch of the first stage. The cell distribution part determines a routes of a cell to be transferred such that loads of routes within the ATM switch are balanced. The ATM switch further includes an adding part which adds arriving time information to an arriving cell as the time information.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: January 6, 2009
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Seisho Yasukawa, Naoki Takaya, Masayoshi Nabeshima, Eiji Oki, Naoaki Yamanaka
  • Patent number: 7339935
    Abstract: An ATM switch includes a first stage, a second stage and a third stage each of which stages includes at least one basic switch, wherein the first stage, the second stage and the third stage are connected. The basic switch includes a part which refers to time information written in a header of an input cell and switches cells to an output port in an ascending order of the time information. In addition, the ATM switch includes a cell distribution part in the basic switch of the first stage. The cell distribution part determines a routes of a cell to be transferred such that loads of routes within the ATM switch are balanced. The ATM switch further includes an adding part which adds arriving time information to an arriving cell as the time information.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: March 4, 2008
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Seisho Yasukawa, Naoki Takaya, Masayoshi Nabeshima, Eiji Oki, Naoaki Yamanaka
  • Patent number: 7292576
    Abstract: An ATM switch includes a first stage, a second stage and a third stage each of which stages includes at least one basic switch, wherein the first stage, the second stage and the third stage are connected. The basic switch includes a part which refers to time information written in a header of an input cell and switches cells to an output port in an ascending order of the time information. In addition, the ATM switch includes a cell distribution part in the basic switch of the first stage. The cell distribution part determines a routes of a cell to be transferred such that loads of routes within the ATM switch are balanced. The ATM switch further includes an adding part which adds arriving time information to an arriving cell as the time information.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: November 6, 2007
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Seisho Yasukawa, Naoki Takaya, Masayoshi Nabeshima, Eiji Oki, Naoaki Yamanaka
  • Patent number: 7136391
    Abstract: An ATM switch includes a first stage, a second stage and a third stage each of which stages includes at least one basic switch, wherein the first stage, the second stage and the third stage are connected. The basic switch includes a part which refers to time information written in a header of an input cell and switches cells to an output port in an ascending order of the time information. In addition, the ATM switch includes a cell distribution part in the basic switch of the first stage. The cell distribution part determines a routes of a cell to be transferred such that loads of routes within the ATM switch are balanced. The ATM switch further includes an adding part which adds arriving time information to an arriving cell as the time information.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: November 14, 2006
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Seisho Yasukawa, Naoki Takaya, Masayoshi Nabeshima, Eiji Oki, Naoaki Yamanaka
  • Publication number: 20050083939
    Abstract: An ATM switch includes a first stage, a second stage and a third stage each of which stages includes at least one basic switch, wherein the first stage, the second stage and the third stage are connected. The basic switch includes a part which refers to time information written in a header of an input cell and switches cells to an output port in an ascending order of the time information. In addition, the ATM switch includes a cell distribution part in the basic switch of the first stage. The cell distribution part determines a routes of a cell to be transferred such that loads of routes within the ATM switch are balanced. The ATM switch further includes an adding part which adds arriving time information to an arriving cell as the time information.
    Type: Application
    Filed: October 22, 2004
    Publication date: April 21, 2005
    Inventors: Seisho Yasukawa, Naoki Takaya, Masayoshi Nebeshima, Eiji Oki, Naoaki Yamanaka
  • Publication number: 20050053096
    Abstract: An ATM switch includes a first stage, a second stage and a third stage each of which stages includes at least one basic switch, wherein the first stage, the second stage and the third stage are connected. The basic switch includes a part which refers to time information written in a header of an input cell and switches cells to an output port in an ascending order of the time information. In addition, the ATM switch includes a cell distribution part in the basic switch of the first stage. The cell distribution part determines a routes of a cell to be transferred such that loads of routes within the ATM switch are balanced. The ATM switch further includes an adding part which adds arriving time information to an arriving cell as the time information.
    Type: Application
    Filed: October 22, 2004
    Publication date: March 10, 2005
    Inventors: Seisho Yasukawa, Naoki Takaya, Masayoshi Nabeshima, Eiji Oki, Naoaki Yamanaka
  • Publication number: 20050053067
    Abstract: An ATM switch includes a first stage, a second stage and a third stage each of which stages includes at least one basic switch, wherein the first stage, the second stage and the third stage are connected. The basic switch includes a part which refers to time information written in a header of an input cell and switches cells to an output port in an ascending order of the time information. In addition, the ATM switch includes a cell distribution part in the basic switch of the first stage. The cell distribution part determines a routes of a cell to be transferred such that loads of routes within the ATM switch are balanced. The ATM switch further includes an adding part which adds arriving time information to an arriving cell as the time information.
    Type: Application
    Filed: October 22, 2004
    Publication date: March 10, 2005
    Inventors: Seisho Yasukawa, Naoki Takaya, Masayoshi Nabeshima, Eiji Oki, Naoaki Yamanaka