Patents by Inventor Takayoshi Kaizuka

Takayoshi Kaizuka 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: 7963390
    Abstract: A contact lens storage case comprising a case body including a pair of chambers for containing contact lenses therein, and a pair of lids for closing and opening the chambers, wherein inner faces of the chambers of the case body are formed by a synthetic resin including a silver based inorganic antimicrobic agent comprising a silver based compound carried on an inorganic carrier selected from the group consisting of a zeolite, a water soluble glass, zirconium phosphate, silica gel and activated charcoal. The contact lens storage case inhibits acanthamoeba.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: June 21, 2011
    Assignees: Sinanen Zeomic Co., Ltd., K.K. Suntech, Daisho Sangyo Co., Ltd.
    Inventors: Tatsuo Yamamoto, Yasuo Kurihara, Mutsumi Nakano, Takayoshi Kaizuka
  • Publication number: 20110048973
    Abstract: A contact lens storage case comprising a case body including a pair of chambers for containing contact lenses therein, and a pair of lids for closing and opening the chambers, wherein inner faces of the chambers of the case body are formed by a synthetic resin including a silver based inorganic antimicrobic agent comprising a silver based compound carried on an inorganic carrier selected from the group consisting of a zeolite, a water soluble glass, zirconium phosphate, silica gel and activated charcoal. The contact lens storage case inhibits acanthamoeba.
    Type: Application
    Filed: December 11, 2009
    Publication date: March 3, 2011
    Applicants: Sinanen Zeomic Co., Ltd., K.K. Suntech, Daisho Sangyo Co., Ltd., Tatsuo Yamamoto
    Inventors: Tatsuo YAMAMOTO, Yasuo Kurihara, Mutsumi Nakano, Takayoshi Kaizuka
  • Publication number: 20100189810
    Abstract: An anti-amoebatic ophthalmologic compound which includes an inorganic carrier in which silver ions and hydrogen ions are added. The carrier includes silver ions and hydrogen ions in an amount of more than 1 ppm. The compound can be suspended in an aqueous solution. The aqueous solution may be controlled in a pH value of 5 to 8. The compound may be formed as a molded resinous piece containing an inorganic carrier including silver ions and hydrogen ions in an amount more than 0.01 wt %. The compound is stable, while sustaining a high anti-amoebatic property.
    Type: Application
    Filed: June 4, 2009
    Publication date: July 29, 2010
    Applicants: Sinanen Zeomic Co., Ltd., Daisho Sangyo Co., Ltd.
    Inventors: Tatsuo Yamamoto, Yasuo Kurihara, Mutsumi Nakano, Takayoshi Kaizuka
  • Patent number: 5950435
    Abstract: An ice keeps the temperature of foodstuff at the freezing point, inhibits the propagation of bacteria or germ, and suppresses the number of bacteria or germs as low as possible. The ice of the present invention comprises a frozen mixture of water and finely divided particles of metal element or metal oxide having sterilizing power.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: September 14, 1999
    Assignee: Daisho Sangyo Kabushiki-Kaisha
    Inventor: Takayoshi Kaizuka