Patents by Inventor Hironao Sajiki

Hironao Sajiki 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: 11173480
    Abstract: A catalyst includes a carrier, and a metal obtained by reducing a metal ion supported on the carrier 1) in a supercritical state or 2) in a polar organic solvent, wherein the carrier is an inorganic porous body having a hierarchical porous structure. By employing the catalyst, it is possible to exhibit better catalytic activity than a conventional catalyst. Heat generation and spontaneous ignition are prevented because no organic porous body is used.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: November 16, 2021
    Assignee: SNG INC.
    Inventors: Riichi Miyamoto, Hongzhi Bai, Hironao Sajiki, Tomohiro Ichikawa, Masahiro Mizuno, Aya Ogawa, Hayato Masuda, Tsuyoshi Yamada, Tomohiro Matsuo, Yutaka Kobayashi
  • Publication number: 20210300847
    Abstract: Provided is a process in which a cyclobutanediol compound having a high cis:trans ratio can be stably obtained. The cyclobutanediol compound having a cis:trans ratio of 1.5:1 to 5000:1 is produced by using at least one compound selected from a group consisting of a cyclobutanedione compound, a cyclobutanketol compound, and a cyclobutanediol compound as a raw material, and performing a catalytic hydrogenation reaction and an isomerization reaction in the cyclobutanediol compound in a solid phase state in the presence of a metal catalyst without adding a solvent.
    Type: Application
    Filed: March 17, 2021
    Publication date: September 30, 2021
    Applicant: JNC CORPORATION
    Inventors: Shinichi Furusato, Toshiyuki KAWANABE, Kaori TSURUOKA, Hironao SAJIKI, Tsuyoshi YAMADA, Kwihwan PARK
  • Publication number: 20210206632
    Abstract: A device includes: a storage section which stores a solution containing an organic compound; a catalyst holding section to hold a solid catalyst; and a microwave irradiation mechanism which irradiates the solution passing through the catalyst holding section with a microwave, wherein the solid catalyst is a molded catalyst containing a noble metal supported on a carrier that has an average particle diameter larger than 100 ?m. A hydrogen production method includes irradiating a solution containing an organic compound, the solution passing through a catalyst holding section holding a solid catalyst, with a microwave, the solid catalyst being a molded catalyst containing a noble metal supported on a carrier that has an average particle diameter larger than 100 ?m. Both device and method do not require a high-temperature heat source, enable easy collection, replacement, of the catalyst, and can be used for production of hydrogen.
    Type: Application
    Filed: May 14, 2019
    Publication date: July 8, 2021
    Applicants: SAIDA FDS INC., N.E. CHEMCAT CORPORATION
    Inventors: Takeo YOSHIMURA, Noriyuki OHNEDA, Hironao SAJIKI, Yasunari MONGUCHI, Yoshinari SAWAMA, Tsuyoshi YAMADA, Tomohiro ICHIKAWA, Tomohiro MATSUO, Takumu TACHIKAWA, Akira KOMATSU
  • Publication number: 20210130255
    Abstract: A hydrocarbon is produced by applying mechanical energy to a metal body containing stainless steel by solid-solid contact so that a contact pressure per unit area is 30 kPa or more, in the presence of a gas containing carbon dioxide and a hydrogen source, thereby adding hydrogen to carbon dioxide. Further, a hydrocarbon is produced by providing a reaction vessel for applying mechanical energy to a metal body by solid-solid contact in the presence of a gas containing carbon dioxide and a hydrogen source, a gas introduction unit for introducing the gas containing carbon dioxide to the reaction vessel, a hydrogen source introduction unit for introducing the hydrogen source to the reaction vessel, and a gas discharge unit for discharging a gas containing the hydrocarbon produced in the reaction vessel, and adding hydrogen to the carbon dioxide in the reaction vessel.
    Type: Application
    Filed: January 13, 2021
    Publication date: May 6, 2021
    Inventors: Miki Itoh, Hironao Sajiki, Yoshinari Sawama, Miki Niikawa, Kwihwan Park
  • Patent number: 10927049
    Abstract: A hydrocarbon is produced by applying mechanical energy to a metal body containing stainless steel by solid-solid contact so that a contact pressure per unit area is 30 kPa or more, in the presence of a gas containing carbon dioxide and a hydrogen source, thereby adding hydrogen to carbon dioxide. Further, a hydrocarbon is produced by providing a reaction vessel for applying mechanical energy to a metal body by solid-solid contact in the presence of a gas containing carbon dioxide and a hydrogen source, a gas introduction unit for introducing the gas containing carbon dioxide to the reaction vessel, a hydrogen source introduction unit for introducing the hydrogen source to the reaction vessel, and a gas discharge unit for discharging a gas containing the hydrocarbon produced in the reaction vessel, and adding hydrogen to the carbon dioxide in the reaction vessel.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: February 23, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Miki Itoh, Hironao Sajiki, Yoshinari Sawama, Miki Niikawa, Kwihwan Park
  • Publication number: 20200246779
    Abstract: A catalyst includes a carrier, and a metal obtained by reducing a metal ion supported on the carrier 1) in a supercritical state or 2) in a polar organic solvent, wherein the carrier is an inorganic porous body having a hierarchical porous structure. By employing the catalyst, it is possible to exhibit better catalytic activity than a conventional catalyst. Heat generation and spontaneous ignition are prevented because no organic porous body is used.
    Type: Application
    Filed: September 28, 2018
    Publication date: August 6, 2020
    Applicant: SnG Inc.
    Inventors: Riichi MIYAMOTO, Hongzhi BAI, Hironao SAJIKI, Tomohiro ICHIKAWA, Masahiro MIZUNO, Aya OGAWA, Hayato MASUDA, Tsuyoshi YAMADA, Tomohiro MATSUO, Yutaka KOBAYASHI
  • Publication number: 20200123079
    Abstract: A hydrocarbon is produced by applying mechanical energy to a metal body containing stainless steel by solid-solid contact so that a contact pressure per unit area is 30 kPa or more, in the presence of a gas containing carbon dioxide and a hydrogen source, thereby adding hydrogen to carbon dioxide. Further, a hydrocarbon is produced by providing a reaction vessel for applying mechanical energy to a metal body by solid-solid contact in the presence of a gas containing carbon dioxide and a hydrogen source, a gas introduction unit for introducing the gas containing carbon dioxide to the reaction vessel, a hydrogen source introduction unit for introducing the hydrogen source to the reaction vessel, and a gas discharge unit for discharging a gas containing the hydrocarbon produced in the reaction vessel, and adding hydrogen to the carbon dioxide in the reaction vessel.
    Type: Application
    Filed: October 15, 2019
    Publication date: April 23, 2020
    Inventors: Miki Itoh, Hironao Sajiki, Yoshinari Sawama, Miki Niikawa, Kwihwan Park
  • Patent number: 10442834
    Abstract: The present invention provides a method of efficiently deprotecting a protected organic compound by catalytic hydrogenation. Specifically, the present invention provides a method of deprotecting an organic compound having at least one functional group selected from the group consisting of a carboxy group, an amino group and a hydroxy group, which is protected by a protecting group represented by the formula (I): R1—C(R2)(R3)-L1-??(I) [wherein R1 is an aryl group optionally having substituent(s), R2 and R3 are each independently, a hydrogen atom or an aryl group optionally having substituent(s), and L1 is a single bond, —O—CO— or —O—CH2—], comprising hydrogenation in the presence of a metal catalyst and halogenated acetic acid.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: October 15, 2019
    Assignee: AJINOMOTO CO., INC.
    Inventors: Hironao Sajiki, Yasunari Monguchi
  • Patent number: 9676622
    Abstract: An object is to provide a process for providing hydrogen or heavy hydrogens conveniently without the necessity of large-scale equipment and a process capable of performing hydrogenation (protiation, deuteration or tritiation) reaction conveniently without the use of an expensive reagent and a special catalyst. The production process includes a process for producing hydrogen or heavy hydrogens, containing subjecting water or heavy water to mechanochemical reaction in the presence of a catalyst metal, and a process for producing a hydrogenated (protiated, deuterated or tritiated) organic compound, containing subjecting an organic compound and water or heavy water to mechanochemical reaction in the presence of a catalyst metal.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: June 13, 2017
    Assignee: SHIONO CHEMICAL CO., LTD.
    Inventors: Hironao Sajiki, Yasunari Monguchi, Yoshinari Sawama, Shinichi Kondo
  • Patent number: 9371272
    Abstract: Objects are to provide efficient methods for producing hydrogen or heavy hydrogens and for hydrogenating (protiating, deuterating or tritiating) an organic compound, and to provide an equipment and the like used therefor. A method for producing hydrogen or heavy hydrogens, containing subjecting water or heavy water to mechanochemical reaction in the presence of a catalyst metal, in which an energy density of a rotational acceleration of 75 G or more is applied to water or heavy water for 25 minutes or more, a method for producing a hydrogenated (protiated, deuterated or tritiated) organic compound, a method for hydrogenating (protiating, deuterating or tritiating) an organic compound, a method for dehalogenating an organic compound having halogen, and a ball for mechanochemical reaction are provided.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: June 21, 2016
    Assignee: Shiono Chemical Co., Ltd.
    Inventors: Hironao Sajiki, Yasunari Monguchi, Yoshinari Sawama, Shinichi Kondo, Yasushi Sasai
  • Patent number: 9255070
    Abstract: The subject of the present invention is to provide a method for deuteration, which can obtain a compound having an aromatic ring and/or a heterocyclic ring at an improved deuteration ratio. The present invention relates to a method for deuteration of a compound having an aromatic ring and/or a heterocyclic ring, comprising reacting the compound having an aromatic ring and/or a heterocyclic ring with a heavy hydrogen source in the presence of an activated mixed catalyst of not less than two kinds of catalysts selected from among a palladium catalyst, a platinum catalyst, a rhodium catalyst, an iridium catalyst, a ruthenium catalyst, a nickel catalyst and a cobalt catalyst.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: February 9, 2016
    Assignee: WAKO PURE CHEMICAL INDUSTRIES, LTD.
    Inventors: Nobuhiro Ito, Tsuneaki Maesawa, Kazushige Muto, Kosaku Hirota, Hironao Sajiki
  • Publication number: 20160024143
    Abstract: The present invention provides a method of efficiently deprotecting a protected organic compound by catalytic hydrogenation. Specifically, the present invention provides a method of deprotecting an organic compound having at least one functional group selected from the group consisting of a carboxy group, an amino group and a hydroxy group, which is protected by a protecting group represented by the formula (I): R1—C(R2)(R3)-L1- ??(I) [wherein R1 is an aryl group optionally having substituent(s), R2 and R3 are each independently, a hydrogen atom or an aryl group optionally having substituent(s), and L1 is a single bond, —O—CO— or —O—CH2—], comprising hydrogenation in the presence of a metal catalyst and halogenated acetic acid.
    Type: Application
    Filed: October 2, 2015
    Publication date: January 28, 2016
    Applicant: AJINOMOTO CO., INC.
    Inventors: Hironao SAJIKI, Yasunari MONGUCHI
  • Publication number: 20150133628
    Abstract: A method for producing a polyamine is described that provides excellent safety, a lot of flexibility regarding a variety of its productions, and that can produce a polyamine of high-molecular weight easily and inexpensively. The polyamine includes a combination of units of formula (1) or (2): —(NH—(CH2)m—NH—(CH2)n)—??(1) (in the formula (1), independently in every unit, “m” indicates an integral number of 0 or more and “n” indicates an integral number of 3 or more.) —(NH—Y—NH—Z)—??(2) (in the formula (2), independently in every unit, “Y” and “Z” are the same as or different from each other, and they indicate substituted or unsubstituted groups including unsaturated aliphatic, cyclic aliphatic or aromatic hydrocarbon radicals that can include hetero atoms.).
    Type: Application
    Filed: September 10, 2014
    Publication date: May 14, 2015
    Inventors: Hiroyuki KITAYAMA, Hironao SAJIKI, Yasunari MONGUCHI
  • Publication number: 20150025264
    Abstract: Objects are to provide efficient methods for producing hydrogen or heavy hydrogens and for hydrogenating (protiating, deuterating or tritiating) an organic compound, and to provide an equipment and the like used therefor. A method for producing hydrogen or heavy hydrogens, containing subjecting water or heavy water to mechanochemical reaction in the presence of a catalyst metal, in which an energy density of a rotational acceleration of 75 G or more is applied to water or heavy water for 25 minutes or more, a method for producing a hydrogenated (protiated, deuterated or tritiated) organic compound, a method for hydrogenating (protiating, deuterating or tritiating) an organic compound, a method for dehalogenating an organic compound having halogen, and a ball for mechanochemical reaction are provided.
    Type: Application
    Filed: February 8, 2013
    Publication date: January 22, 2015
    Applicant: Shiono Chemical Co., Ltd.
    Inventors: Hironao Sajiki, Yasunari Monguchi, Yoshinari Sawama, Shinichi Kondo, Yasushi Sasai
  • Publication number: 20140363369
    Abstract: An object is to provide a process for providing hydrogen or heavy hydrogens conveniently without the necessity of large-scale equipment and a process capable of performing hydrogenation (protiation, deuteration or tritiation) reaction conveniently without the use of an expensive reagent and a special catalyst. The production process includes a process for producing hydrogen or heavy hydrogens, containing subjecting water or heavy water to mechanochemical reaction in the presence of a catalyst metal, and a process for producing a hydrogenated (protiated, deuterated or tritiated) organic compound, containing subjecting an organic compound and water or heavy water to mechanochemical reaction in the presence of a catalyst metal.
    Type: Application
    Filed: August 14, 2014
    Publication date: December 11, 2014
    Applicant: Shiono Chemical Co., Ltd.
    Inventors: Hironao SAJIKI, Yasunari MONGUCHI, Yoshinari SAWAMA, Shinichi KONDO
  • Patent number: 8871980
    Abstract: An object is to provide a process for providing hydrogen or heavy hydrogens conveniently without the necessity of large-scale equipment and a process capable of performing hydrogenation (protiation, deuteration or tritiation) reaction conveniently without the use of an expensive reagent and a special catalyst. The production process includes a process for producing hydrogen or heavy hydrogens, containing subjecting water or heavy water to mechanochemical reaction in the presence of a catalyst metal, and a process for producing a hydrogenated (protiated, deuterated or tritiated) organic compound, containing subjecting an organic compound and water or heavy water to mechanochemical reaction in the presence of a catalyst metal.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: October 28, 2014
    Assignee: Shiono Chemical Co., Ltd.
    Inventors: Hironao Sajiki, Yasunari Monguchi, Yoshinari Sawama, Shinichi Kondo
  • Patent number: 8853457
    Abstract: A method for producing a polyamine is described that provides excellent safety, a lot of flexibility regarding a variety of its productions, and that can produce a polyamine of high-molecular weight easily and inexpensively. The polyamine includes a combination of units of formula (1) or (2): —(NH—(CH2)m—NH—(CH2)n)—??(1) (in the formula (1), independently in every unit, “m” indicates an integral number of 0 or more and “n” indicates an integral number of 3 or more.) —(NH—y—NH —Z)—??(2) (in the formula (2), independently in every unit, “Y” and “Z” are the same as or different from each other, and they indicate substituted or unsubstituted groups including unsaturated aliphatic, cyclic aliphatic or aromatic hydrocarbon radicals that can include hetero atoms.).
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: October 7, 2014
    Assignee: Rhodia Operations
    Inventors: Hiroyuki Kitayama, Hironao Sajiki, Yasunari Monguchi
  • Publication number: 20130150623
    Abstract: An object is to provide a process for providing hydrogen or heavy hydrogens conveniently without the necessity of large-scale equipment and a process capable of performing hydrogenation (protiation, deuteration or tritiation) reaction conveniently without the use of an expensive reagent and a special catalyst. The production process includes a process for producing hydrogen or heavy hydrogens, containing subjecting water or heavy water to mechanochemical reaction in the presence of a catalyst metal, and a process for producing a hydrogenated (protiated, deuterated or tritiated) organic compound, containing subjecting an organic compound and water or heavy water to mechanochemical reaction in the presence of a catalyst metal.
    Type: Application
    Filed: August 16, 2011
    Publication date: June 13, 2013
    Applicant: Shiono Chemical Co., Ltd.
    Inventors: Hironao Sajiki, Yasunari Monguchi, Yoshinari Sawama, Shinichi Kondo
  • Publication number: 20130123542
    Abstract: A method for producing a polyamine is described that provides excellent safety, a lot of flexibility regarding a variety of its productions, and that can produce a polyamine of high-molecular weight easily and inexpensively. The polyamine includes a combination of units of formula (1) or (2): —(NH—(CH2)m—NH—(CH2)n)—??(1) (in the formula (1), independently in every unit, “m” indicates an integral number of 0 or more and “n” indicates an integral number of 3 or more.) —(NH—Y—NH—Z)—??(2) (in the formula (2), independently in every unit, “Y” and “Z” are the same as or different from each other, and they indicate substituted or unsubstituted groups including unsaturated aliphatic, cyclic aliphatic or aromatic hydrocarbon radicals that can include hetero atoms.).
    Type: Application
    Filed: December 17, 2010
    Publication date: May 16, 2013
    Applicant: RHODIA OPERATIONS
    Inventors: Hiroyuki Kitayama, Hironao Sajiki, Yasunari Monguchi
  • Patent number: 8093422
    Abstract: The present invention relates to a method for deuteration of a compound having an aromatic ring, using an activated catalyst, and the method comprises reacting a compound having an aromatic ring with heavy hydrogen source in the presence of an activated catalyst selected from a platinum catalyst, a rhodium catalyst, a ruthenium catalyst, a nickel catalyst and a cobalt catalyst.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: January 10, 2012
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventors: Nobuhiro Ito, Tsuneaki Maesawa, Kazushige Muto, Kosaku Hirota, Hironao Sajiki