Patents by Inventor Masabumi Tsuda

Masabumi Tsuda 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).

  • Patent number: 4321224
    Abstract: A method for the production of a spherical molded product of a titanium oxide composition comprising adding a titanium oxide composition powder and a mist of an aqueous medium to a seed of an inorganic substance, granulating the mixture with a centrifugal fluidizing coating granulator and calcining the resultant spherical product, which is characteristic in that the granulation of the mixture is carried out by adding the titanium oxide composition powder and the aqueous medium in the ratio of addition rate of 1:0.20 to 1:0.35 by weight, whereby there is obtained a spherical molded product having a larger strength with less abrasion. The spherical molded product obtained by the present invention is useful, for instance, as a catalyst carrier or catalyst for the removal of nitrogen oxides from exhaust gases.
    Type: Grant
    Filed: December 31, 1979
    Date of Patent: March 23, 1982
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shinkichi Shimizu, Tadao Nishizaki, Masabumi Tsuda
  • Patent number: 4293445
    Abstract: A method for the production of a molded product containing titanium oxide, which comprises molding a titanium oxide composition containing a barium compound in the atomic ratio of titanium:barium=100:0.1 to 20. The resulting molded product has excellent strength and is useful, for example, as a catalyst carrier or catalyst, in various shapes such as pellet, bar, ring, sphere, or the like.
    Type: Grant
    Filed: January 3, 1980
    Date of Patent: October 6, 1981
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shinkichi Shimizu, Tadao Nishizaki, Masabumi Tsuda