Patents by Inventor Masashi Kumoda

Masashi Kumoda 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: 4145306
    Abstract: A granular, heterogeneous calcium hypochlorite composition comprising a mixture of a substantially anhydrated granular component and a hydrated granular component keeping the crystallization water of from 2 to 3 moles water per mole of Ca(OCl).sub.2 in the form of Ca(OCl).sub.2.3H.sub.2 O has an improved stability and safety, and said composition is suitable for preparing break-resistant, good-dissoluble calcium hypochlorite tablets.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: March 20, 1979
    Assignee: Nippon Soda Company Limited
    Inventors: Seiji Tatara, Yoshiki Domori, Masashi Kumoda, Yusuke Endo
  • Patent number: 4053429
    Abstract: Safety-calcium hypochlorite composition containing 16% by weight to about 22% by weight of water and at least an amount of calcium hypochlorite corresponding to 60% by weight of active chlorine content on a dry basis on the composition, wherein active chlorine content is a number of percentage of twice the weight of chlorine of calcium hypochlorite divided by weight of a mixture.
    Type: Grant
    Filed: June 30, 1976
    Date of Patent: October 11, 1977
    Assignee: Nippon Soda Company, Limited
    Inventors: Seiji Tatara, Yasuo Morita, Makoto Nishonomiya, Masashi Kumoda
  • Patent number: 3950499
    Abstract: A continuous cyclic process for production of calcium hypochlorite wherein an aqueous solution saturated with calcium hypochlorite and sodium chloride is chlorinated by using chlorine gas to produce sodium chloride crystals and an aqueous chlorinated reaction mixture, the formed sodium chloride crystals being then separated from said aqueous chlorinated reaction mixture. First sodium hydroxide is added to the foregoing aqueous solution which solution also contains calcium hypochlorite and sodium chloride in the crystal phase. Then calcium hydroxide and sodium hydroxide is further added to the aqueous chlorinated reaction mixture remaining after separation of said crystals therefrom. This mixture containing calcium hydroxide and sodium hydroxide is again chlorinated with chlorine gas to produce a slurry containing mainly sodium chloride crystals, calcium hypochlorite crystals and a mother liquor saturated with calcium hypochlorite and sodium chloride.
    Type: Grant
    Filed: November 15, 1974
    Date of Patent: April 13, 1976
    Assignee: Nippon Soda Company, Ltd.
    Inventors: Noboru Miyashin, Masashi Kumoda, Makoto Nishonomiya, Katsumi Nakayama, Yasushi Izawa