Patents by Inventor Tatsuo Ishiyama

Tatsuo Ishiyama 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: 20240090106
    Abstract: This invention is capable of detailed control in accordance with the mode of using a lighting apparatus and the like.
    Type: Application
    Filed: July 29, 2021
    Publication date: March 14, 2024
    Applicant: JIMBO ELECTRIC Co., Ltd.
    Inventors: Shingo Ishiyama, Kazuhiro Naito, Tatsuo Matsuno, Yoma Isakawa, Yasuhiro Suichi, Masahiro Fujita
  • Patent number: 10131593
    Abstract: To reduce the emission of carbon dioxide and improve the energy efficiency in a hydrogen supply system. The hydrogen supply system (1) comprises: a reformer (5) for performing steam reforming of a hydrocarbon; a shift reaction unit (6) for producing a gas containing hydrogen and carbon dioxide by causing a water gas shift reaction of a gas obtained from the reformer; a first absorber (36) for absorbing the carbon dioxide contained in the gas obtained from the shift reaction unit in an absorption liquid; a hydrogenation reaction unit (8) for producing a hydrogenated aromatic compound by causing a hydrogenation reaction of an aromatic compound with a gas that has passed through the first absorber; and a regenerator (37) for separating the carbon dioxide from the absorption liquid by re-circulating the absorption liquid from the first absorber and heating the absorption liquid with heat generated from the hydrogenation reaction.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: November 20, 2018
    Assignee: CHIYODA CORPORATION
    Inventors: Yoshimi Okada, Tomohiko Shirasaki, Osamu Ikeda, Kenichi Imagawa, Hironori Kawai, Masato Shiraga, Tatsuo Ishiyama
  • Publication number: 20170057890
    Abstract: In a system for hydrogenation of an aromatic compound, an excessive temperature rise in the hydrogenation reaction unit is prevented, and the amount of the dilution gas to be circulated is minimized. The hydrogenation system (1) comprises a hydrogenation reaction unit (2) for producing a hydrogenated aromatic compound by adding hydrogen to an aromatic compound via a hydrogenation reaction, a separation unit (3) for separating the hydrogenated aromatic compound from a product of the hydrogenation reaction unit, and a transportation unit (4) for circulating at least a part of a residual component remaining in the separation unit after separating the hydrogenated aromatic compound therefrom to the hydrogenation reaction unit.
    Type: Application
    Filed: February 20, 2015
    Publication date: March 2, 2017
    Inventors: Hironori Kawai, Masato Shiraga, Kenichi Imagawa, Tatsuo Ishiyama
  • Publication number: 20160176784
    Abstract: To reduce the emission of carbon dioxide and improve the energy efficiency in a hydrogen supply system. The hydrogen supply system (1) comprises: a reformer (5) for performing steam reforming of a hydrocarbon; a shift reaction unit (6) for producing a gas containing hydrogen and carbon dioxide by causing a water gas shift reaction of a gas obtained from the reformer; a first absorber (36) for absorbing the carbon dioxide contained in the gas obtained from the shift reaction unit in an absorption liquid; a hydrogenation reaction unit (8) for producing a hydrogenated aromatic compound by causing a hydrogenation reaction of an aromatic compound with a gas that has passed through the first absorber; and a regenerator (37) for separating the carbon dioxide from the absorption liquid by re-circulating the absorption liquid from the first absorber and heating the absorption liquid with heat generated from the hydrogenation reaction.
    Type: Application
    Filed: August 5, 2014
    Publication date: June 23, 2016
    Inventors: Yoshimi Okada, Tomohiko Shirasaki, Osamu Ikeda, Kenichi Imagawa, Hironori Kawai, Masato Shiraga, Tatsuo Ishiyama
  • Patent number: 8507680
    Abstract: The present invention provides a production process of a heteroaryl mono- or diboron compound comprising an aromatic heterocyclic compound and a boron compound in the form of bis(pinacolate)diboron or pinacolate diborane in the presence of a iridium-containing catalyst and a ligand such as a bipyridyl ligand. The reaction is conducted in a single step under mild conditions and allows for changing the charged ratios of the raw materials.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: August 13, 2013
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Norio Miyaura, Tatsuo Ishiyama
  • Publication number: 20120142924
    Abstract: The present invention provides a production process of a heteroaryl mono- or diboron compound comprising an aromatic heterocyclic compound and a boron compound in the form of bis(pinacolate)diboron or pinacolate diborane in the presence of a iridium-containing catalyst and a ligand such as a bipyridyl ligand. The reaction is conducted in a single step under mild conditions and allows for changing the charged ratios of the raw materials.
    Type: Application
    Filed: February 9, 2012
    Publication date: June 7, 2012
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Norio MIYAURA, Tatsuo Ishiyama
  • Patent number: 8143407
    Abstract: The present invention provides an economically and industrially superior simple process that enables the selective production of an aromatic heterocyclic monoboron compound and aromatic heterocyclic diboron compound at a satisfactory yield and in a desired ratio by reacting an aromatic heterocyclic compound and a boron compound in a single step under mild conditions while changing only the charged ratios of the raw materials. The present invention provides a production process of a heteroaryl mono- or diboron compound comprising an aromatic heterocyclic compound and a boron compound in the form of bis(pinacolate)diboron or pinacolate diborane in the presence of a iridium-containing catalyst and a ligand such as a bipyridyl ligand.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: March 27, 2012
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Norio Miyaura, Tatsuo Ishiyama
  • Publication number: 20100010224
    Abstract: The present invention provides an economically and industrially superior simple process that enables the selective production of an aromatic heterocyclic monoboron compound and aromatic heterocyclic diboron compound at a satisfactory yield and in a desired ratio by reacting an aromatic heterocyclic compound and a boron compound in a single step under mild conditions while changing only the charged ratios of the raw materials. The present invention provides a production process of a heteroaryl mono- or diboron compound comprising an aromatic heterocyclic compound and a boron compound in the form of bis(pinacolate)diboron or pinacolate diborane in the presence of a iridium-containing catalyst and a ligand such as a bipyridyl ligand.
    Type: Application
    Filed: September 16, 2009
    Publication date: January 14, 2010
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Norio MIYAURA, Tatsuo ISHIYAMA
  • Patent number: 7612218
    Abstract: The present invention provides an economically and industrially superior simple process that enables the selective production of an aromatic heterocyclic monoboron compound and aromatic heterocyclic diboron compound at a satisfactory yield and in a desired ratio by reacting an aromatic heterocyclic compound and a boron compound in a single step under mild conditions while changing only the charged ratios of the raw materials. The present invention provides a production process of a heteroaryl mono- or diboron compound comprising an aromatic heterocyclic compound and a boron compound in the form of bis(pinacolate)diboron or pinacolate diborane in the presence of a iridium-containing catalyst and a ligand such as a bipyridyl ligand.
    Type: Grant
    Filed: March 5, 2003
    Date of Patent: November 3, 2009
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Norio Miyaura, Tatsuo Ishiyama
  • Publication number: 20050148775
    Abstract: The present invention provides an economically and industrially superior simple process that enables the selective production of an aromatic heterocyclic monoboron compound and aromatic heterocyclic diboron compound at a satisfactory yield and in a desired ratio by reacting an aromatic heterocyclic compound and a boron compound in a single step under mild conditions while changing only the charged ratios of the raw materials. The present invention provides a production process of a heteroaryl mono- or diboron compound comprising an aromatic heterocyclic compound and a boron compound in the form of bis(pinacolate)diboron or pinacolate diborane in the presence of a iridium-containing catalyst and a ligand such as a bipyridyl ligand.
    Type: Application
    Filed: March 5, 2003
    Publication date: July 7, 2005
    Inventors: Norio Miyaura, Tatsuo Ishiyama