Patents by Inventor Hiroaki Onozuka

Hiroaki Onozuka 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).

  • QUATERNARY AMMONIUM SALT, ORGANIC STRUCTURE-DIRECTING AGENT, METHOD FOR PRODUCING QUATERNARY AMMONIUM SALT, CON-TYPE ZEOLITE, METHOD FOR PRODUCING CON-TYPE ZEOLITE, CATALYST, AND METHOD FOR PRODUCING LOWER OLEFIN
    Publication number: 20250115685
    Abstract: Provided is a quaternary ammonium salt having a specific structure, an organic structure-directing agent containing the quaternary ammonium salt, and a method for producing the quaternary ammonium salt. Also, provided is a CON-type zeolite, which is a mixed crystal in which a molar ratio (Si/Al) of silicon (Si) and aluminum (Al) is 200 or more and 2000 or less, and which contains 25 mass % or more of Polymorph A, a catalyst containing a CON-type zeolite, and a method for producing a lower olefin using the catalyst.
    Type: Application
    Filed: December 19, 2024
    Publication date: April 10, 2025
    Applicants: MITSUBISHI CHEMICAL CORPORATION, JAPAN TECHNOLOGICAL RESEARCH ASSOCIATION OF ARTIFICIAL PHOTOSYNTHETIC CHEMICAL PROCESS
    Inventors: Yasuyo SAITO, Hiroaki ONOZUKA, Susumu TSUTSUMINAI
  • Zeolite catalyst and method for producing lower olefin
    Patent number: 11766667
    Abstract: A CON zeolite satisfying the following (1) to (2): (1) The framework is CON as per the code specified by the International Zeolite Association (IZA); and (2) It contains silicon and aluminum, and the molar ratio of aluminum to silicon is 0.04 or more.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: September 26, 2023
    Assignees: Mitsubishi Chemical Corporation, JAPAN TECHNOLOGICAL RESEARCH ASSOCIATION OF ARTIFICIAL PHOTOSYNTHETIC CHEMICAL PROCESS
    Inventors: Hiroaki Onozuka, Masahiro Hara, Masato Yoshioka, Toshiyuki Yokoi
  • ZEOLITE CATALYST AND METHOD FOR PRODUCING LOWER OLEFIN
    Publication number: 20210213433
    Abstract: A CON zeolite satisfying the following (1) to (2):(1) The framework is CON as per the code specified by the International Zeolite Association (IZA); and (2) It contains silicon and aluminum, and the molar ratio of aluminum to silicon is 0.04 or more.
    Type: Application
    Filed: March 8, 2021
    Publication date: July 15, 2021
    Applicants: Mitsubishi Chemical Corporation, JAPAN TECHNOLOGICAL RESEARCH ASSOCIATION OF ARTIFICIAL PHOTOSYNTHETIC CHEMICAL
    Inventors: Hiroaki ONOZUKA, Masahiro HARA, Masato YOSHIOKA, Toshiyuki YOKOI
  • ZEOLITE CATALYST AND METHOD FOR PRODUCING LOWER OLEFIN
    Publication number: 20200047167
    Abstract: A CON zeolite satisfying the following (1) to (2): (1) The framework is CON as per the code specified by the International Zeolite Association (IZA); and (2) It contains silicon and aluminum, and the molar ratio of aluminum to silicon is 0.04 or more.
    Type: Application
    Filed: October 8, 2019
    Publication date: February 13, 2020
    Applicants: Mitsubishi Chemical Corporation, JAPAN TECHNOLOGICAL RESEARCH ASSOCIATION OF ARTIFICIAL PHOTOSYNTHETIC CHEMICAL PROCESS
    Inventors: Hiroaki Onozuka, Masahiro Hara, Masato Yoshioka, Toshiyuki Yokoi
  • Zeolite catalyst and method for producing lower olefin
    Patent number: 10478810
    Abstract: A zeolite catalyst capable of maintaining a high conversion of raw materials over a long period of time, and a method of producing a lower olefin stably over a long period of time using the zeolite catalyst is to be provided. A CON zeolite catalyst containing aluminum (Al) as a constituent element, wherein the CON zeolite catalyst has a ratio ((A2/A1)×100 (%)) of an integrated intensity area (A2) of signal intensity in a range from 57.5 ppm to 70 ppm to an integrated intensity area (A1) of signal intensity in a range from 45 ppm to 70 ppm is not less than 49.0% when analyzed by 27Al-MAS-NMR is prepared, and a lower olefin is produced by a MTO process using the zeolite catalyst.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: November 19, 2019
    Assignees: Mitsubishi Chemical Corporation, JAPAN TECHNOLOGICAL RESEARCH ASSOCIATION OF ARTIFICIAL PHOTOSYNTHETIC CHEMICAL PROCESS
    Inventors: Hiroaki Onozuka, Masahiro Hara, Masato Yoshioka, Toshiyuki Yokoi
  • ZEOLITE CATALYST AND METHOD FOR PRODUCING LOWER OLEFIN
    Publication number: 20180264445
    Abstract: A zeolite catalyst capable of maintaining a high conversion of raw materials over a long period of time, and a method of producing a lower olefin stably over a long period of time using the zeolite catalyst is to be provided. A CON zeolite catalyst containing aluminum (Al) as a constituent element, wherein the CON zeolite catalyst has a ratio ((A2/A1)×100 (%)) of an integrated intensity area (A2) of signal intensity in a range from 57.5 ppm to 70 ppm to an integrated intensity area (A1) of signal intensity in a range from 45 ppm to 70 ppm is not less than 49.0% when analyzed by 27Al-MAS-NMR is prepared, and a lower olefin is produced by a MTO process using the zeolite catalyst.
    Type: Application
    Filed: May 24, 2018
    Publication date: September 20, 2018
    Applicants: Mitsubishi Chemical Corporation, JAPAN TECHNOLOGICAL RESEARCH ASSOCIATION OF ARTIFICIAL PHOTOSYNTHETIC CHEMICAL PROCESS
    Inventors: Hiroaki Onozuka, Masahiro Hara, Masato Yoshioka, Toshiyuki Yokoi