Patents by Inventor Sumio Tani

Sumio Tani 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).

  • Porous polymer particles and preparation method thereof
    Patent number: 4954399
    Abstract: The present invention provides the polymer particles prepared by polymerizing monomer components which comprise as at least a part of polymerizable components a monomer of the formula (I): ##STR1## , wherein R is hydrogen atom or methyl group, n is a number of from 0 to 30 and m is a number of from 0 to 30 provided that m+n.gtoreq.1 and a process for preparing the polymer particles.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: September 4, 1990
    Assignee: Kurashiki Boseki Kabushiki Kaisha
    Inventors: Sumio Tani, Kazuhiko Kogoh, Yuri Nozaki, Kunihiro Oshima
  • Catalyst for reduction of nitrogen oxides in presence of ammonia
    Patent number: 4036785
    Abstract: A catalyst for reduction of nitrogen oxides in the presence of ammonia, which can be advantageously prepared by treating titanium slag with sulfuric acid at an elevated temperature, optionally followed by treatment with an alkali, and decomposing the resulting product while heating at a temperature of about 400.degree. to 700.degree. C and has a high catalytic activity with a long catalytic life and a high resistance to acid substances.
    Type: Grant
    Filed: August 3, 1976
    Date of Patent: July 19, 1977
    Assignee: Kurashiki Boseki Kabushiki Kaisha
    Inventors: Masumi Saito, Sumio Tani, Shigeaki Matsui, Shigeaki Kasaoka
  • Process for reducing nitrogen oxides
    Patent number: 3981971
    Abstract: The reduction of nitrogen oxides is effected by passing stack offgases containing nitrogen oxides over a heavy metal sulfide catalyst in an atmosphere where ammonia is present.
    Type: Grant
    Filed: September 4, 1974
    Date of Patent: September 21, 1976
    Assignee: Kurashiki Boseki Kabushiki Kaisha
    Inventors: Masumi Saito, Sumio Tani, Tateo Ito, Shigeaki Kasaoka