Patents by Inventor Hideyuki SASAHARA

Hideyuki SASAHARA 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).

  • Raw material fluid treatment plant and raw material fluid treatment method
    Patent number: 11939915
    Abstract: A raw material fluid treatment plant provided with a raw material reaction apparatus for reacting a raw material fluid to form a reaction gas. The raw material reaction apparatus includes preheaters and a reactor. The preheaters are heat exchangers that perform heat exchange between a second heat transfer medium and the raw material fluid to heat the raw material fluid. The reactor is a heat exchanger that performs heat exchange between a first heat transfer medium differing from the second heat transfer medium and the raw material fluid having been heated by the preheaters to heat and react the raw material fluid.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: March 26, 2024
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hideyuki Uechi, Hidefumi Araki, Satoshi Tanimura, Masakazu Nose, Jun Sasahara, Yukio Tanaka, Atsushi Yuasa
  • Process for producing purinone derivative
    Patent number: 10239879
    Abstract: According to the present invention, differently from well-known production methods, with the use of a different starting material, Ullmann condensation which may decrease the yield with an increase of a production scale can be avoided and thus 6-amino-9-[(3R)-1-(2-butynoyl)-3-pyrrolidinyl]-7-(4-phenoxyphenyl)-7,9-dihydro-8H-purin-8-one can be provided safely and stably with high reaction yield.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: March 26, 2019
    Assignee: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Ryo Suzuki, Atsushi Hiramatsu, Motoaki Tateyama, Hideyuki Sasahara
  • PROCESS FOR PRODUCING PURINONE DERIVATIVE
    Publication number: 20180079751
    Abstract: According to the present invention, differently from well-known production methods, with the use of a different starting material, Ullmann condensation which may decrease the yield with an increase of a production scale can be avoided and thus 6-amino-9-[(3R)-1-(2-butynoyl)-3-pyrrolidinyl]-7-(4-phenoxyphenyl)-7,9-dihydro-8H-purin-8-one can be provided safely and stably with high reaction yield.
    Type: Application
    Filed: April 8, 2016
    Publication date: March 22, 2018
    Applicant: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Ryo SUZUKI, Atsushi HIRAMATSU, Motoaki TATEYAMA, Hideyuki SASAHARA