Patents by Inventor Chitoshi Mukai

Chitoshi Mukai 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).

  • Titanium oxide particles and method of producing same
    Patent number: 5624667
    Abstract: Titanium oxide particles comprising particulate titanium oxide substrate having a zinc oxy compound or a combination of a zinc oxy compound and a silicon oxy compound supported thereon. They can be produced by adding a zinc compound or a combination of a zinc compound and a silicon compound together with an alkali to a dispersion of particulate titanium oxide substrate to neutralize the zinc compound or the combination of the zinc compound and the silicon compound in said dispersion, then separating and drying the resultant product. They are useful for pigments, catalysts, catalyst supports and adsorbents, and particularly excellent in deodorizing performance by removing malodorous gases such as ammonia, methyl mercaptan, hydrogen sulfide, trimethylamine, methyl sulfide and acetaldehyde through decomposition and adsorption thereof, so that they are useful as white deodorants for sanitary objects such as paper diaper and sanitary napkins which come to directly contact with the skins of human beings.
    Type: Grant
    Filed: March 16, 1995
    Date of Patent: April 29, 1997
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Masatsuyo Maruo, Hitoshi Ando, Mitsuru Watanabe, Chitoshi Mukai
  • Titanium oxide particles and method of scavenging noxious materials
    Patent number: 5480636
    Abstract: Titanium oxide particles comprising particulate titanium oxide substrate having a zinc oxy compound or a combination of a zinc oxy compound and a silicon oxy compound supported thereon. They can be produced by adding a zinc compound or a combination of a zinc compound and a silicon compound together with an alkali to a dispersion of particulate titanium oxide substrate to neutralize the zinc compound or the combination of the zinc compound and the silicon compound in said dispersion, then separating and drying the resultant product. They are useful for pigments, catalysts, catalyst supports and adsorbents, and particularly excellent in deodorizing performance by removing malodorous gases such as ammonia, methyl mercaptan, hydrogen sulfide, trimethylamine, methyl sulfide and acetaldehyde through decomposition and adsorption thereof, so that they are useful as white deodorants for sanitary objects such as paper diaper and sanitary napkins which come to directly contact with the skins of human beings.
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: January 2, 1996
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Masatsuyo Maruo, Hitoshi Ando, Mitsuru Watanabe, Chitoshi Mukai