Patents by Inventor Senji Niwa

Senji Niwa 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).

  • Plate catalyst body for denitration
    Patent number: 4446250
    Abstract: A plate catalyst body for denitration wherein a catalytic substance is supported on a porous metallic plate body having three dimensional network, which has an excellent retention of catalyst and an easy producibility, the porous metallic plate body being able to be uneven or have protrusions.
    Type: Grant
    Filed: April 14, 1982
    Date of Patent: May 1, 1984
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Senji Niwa, Takuji Sasaki, Masaaki Shinto, Noriaki Imamura
  • Catalytic reactor
    Patent number: 4303618
    Abstract: Disclosed is a catalytic reactor in which a plurality of pipe-shaped catalysts are arranged, said reactor including a catalyst-supporting structure which is capable of varying the distance between the adjacent catalysts. Disclosed is also a method for constructing such a reactor, said method comprising optimally setting the distance between the adjacent catalysts from one operation to another.
    Type: Grant
    Filed: July 27, 1980
    Date of Patent: December 1, 1981
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Jun Fukui, Senji Niwa, Norihiro Kawashima, Kenro Ueshima, Katumi Shimizu