Patents by Inventor Hideyuki Hamaji

Hideyuki Hamaji 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).

  • Heterogeneous catalyst and catalyst system for producing 1,2-dichloroethane
    Patent number: 9687824
    Abstract: To provide a heterogeneous catalyst that exhibits high activity and high selectivity, specifically a catalyst suitable for oxychlorination to produce 1,2-dichloroethane from ethylene, and a catalyst system. Provided are: a heterogeneous catalyst supported on a porous carrier, characterized in that the integral value of the hysteresis occurring between an adsorption isotherm and a desorption isotherm by a gas adsorption method, is at most 19% to the total integral value of the adsorption isotherm; and a catalyst system for producing 1,2-dichloroethane, which comprises this catalyst and a diluent having a spherical shape, circular cylindrical shape or hollow cylindrical shape.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: June 27, 2017
    Assignee: TOSOH CORPORATION
    Inventors: Tetsuo Asakawa, Sae Someya, Tomokazu Ohashi, Shinya Imatomi, Hideyuki Hamaji, Yoshihiko Mori, Motohiro Oguri
  • HETEROGENEOUS CATALYST AND CATALYST SYSTEM FOR PRODUCING 1,2-DICHLOROETHANE
    Publication number: 20160167026
    Abstract: To provide a heterogeneous catalyst that exhibits high activity and high selectivity, specifically a catalyst suitable for oxychlorination to produce 1,2-dichloroethane from ethylene, and a catalyst system. Provided are: a heterogeneous catalyst supported on a porous carrier, characterized in that the integral value of the hysteresis occurring between an adsorption isotherm and a desorption isotherm by a gas adsorption method, is at most 19% to the total integral value of the adsorption isotherm; and a catalyst system for producing 1,2-dichloroethane, which comprises this catalyst and a diluent having a spherical shape, circular cylindrical shape or hollow cylindrical shape.
    Type: Application
    Filed: July 17, 2014
    Publication date: June 16, 2016
    Inventors: Tetsuo ASAKAWA, Sae SOMEYA, Tomokazu OHASHI, Shinya IMATOMI, Hideyuki HAMAJI, Yoshihiko MORI, Motohiro OGURI
  • Process for producing benzyl acetate and benzyl alcohol
    Patent number: 5883290
    Abstract: The present invention relates to a process for producing benzyl acetate and benzyl alcohol.Benzyl acetate itself is useful as a solvent and a perfume. Benzyl alcohol which is derived from the benzyl acetate by hydrolysis or by transesterification with methanol is an important compound useful as a powerful solvent, a nontoxic medical additive, and an intermediate compound for agricultural chemicals and medicines.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: March 16, 1999
    Assignee: Tosoh Corporation
    Inventors: Takashi Okada, Makoto Hanaya, Akitaka Hattori, Hideyuki Hamaji, Takanori Miyake, Seiichi Tokumaru, Nobuo Nagira, Shunya Ikumi, Takashi Hori, Norimasa Mizui