Patents by Inventor Nobuhiro Yamada

Nobuhiro Yamada 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).

  • Catalysts used for producing carbonic acid esters and methods of producing carbonic acid esters using the same
    Patent number: 5512528
    Abstract: The present invention relates to a novel catalyst having a stable catalytic activity for catalyzing the reaction of an alcohol with carbon monoxide and oxygen to produce carbonic acid esters (i.e., carbonate), and also the present invention relates to a method of producing carbonic acid esters using this catalyst. The catalyst of the present invention comprises a copper halide and at least one hydroxide compound selected from a group consisting of alkali metal hydroxides and alkali earth metal hydroxides carried on a porous carrier, and also provide a process of regenerating a catalytic activity of the catalyst.
    Type: Grant
    Filed: March 22, 1994
    Date of Patent: April 30, 1996
    Assignee: JGC Corporation
    Inventors: Takeshi Koyama, Masao Tonosaki, Nobuhiro Yamada, Kenji Mori
  • Catalysts used for producing carbonic acid esters and methods of producing carbonic acid esters using the same
    Patent number: 5347031
    Abstract: The present invention relates to a novel catalyst having a stable catalytic activity for catalyzing the reaction of an alcohol with carbon monoxide and oxygen to produce carbonic acid esters (i.e., carbonate), and also the present invention relates to a method of producing carbonic acid esters using this catalyst. The catalyst of the present invention comprises a copper halide and at least one hydroxide compound selected from a group consisting of alkali metal hydroxides and alkali earth metal hydroxides carried on a porous carrier, and also provide a process of regenerating a catalytic activity of the catalyst.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: September 13, 1994
    Assignee: JGC Corporation
    Inventors: Takeshi Koyama, Masao Tonosaki, Nobuhiro Yamada, Kenji Mori
  • Human monocyte-macrophage-CSF preparations
    Patent number: 5288487
    Abstract: Human M-CSF preparations and recombinant human M-CSF preparations against myelodysplastic syndrome, malignant tumor and hyperlipemia and auxiliary therapeutic preparations to be dosed along with platinum-complex anticancer preparations.
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: February 22, 1994
    Assignee: Morinaga Milk Industry Co., Ltd.
    Inventors: Takuji Kawashima, Nobuya Yanai, Muneo Yamada, Hajime Yokota, Kunio Ujiie, Katsuo Yoshida, Shinya Suzu, Fumimaro Takaku, Kazuo Motoyoshi, Nobuhiro Yamada
  • Process for the manufacture of hydrogen sulfide
    Patent number: 5173285
    Abstract: The present invention relates to a process for the manufacture of hydrogen sulfide by reacting sulfur and hydrogen which comprises two hydrogenation reactions. The first hydrogenation reaction of the present invention comprises the steps of supplying hydrogen gas in a reactor containing sulfur at least a part of which is in a liquid phase at a temperature of not lower than 250.degree. C., and reacting the liquid sulfur and the hydrogen gas to produce a crude hydrogen sulfide effluent gas in the reactor. The sulfur vapor contained in the effluent gas is further reacted with fleshly added hydrogen gas in the second hydrogenation reaction to further concentrate the resulting hydrogen sulfide.
    Type: Grant
    Filed: October 16, 1991
    Date of Patent: December 22, 1992
    Assignee: JGC Corporation
    Inventors: Senji Takenaka, Seiichi Matsuoka, Tsutomu Toida, Takao Takinami, Nobuhiro Yamada, Kouzi Tamura