Patents by Inventor Takeo Nakamura

Takeo Nakamura 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).

  • Furnace for treating industrial wastes
    Patent number: 4346661
    Abstract: A furnace for treating sewage sludge, ash from municipal incinerators or other industrial wastes by melting the waste with a high-temperature bed formed from a combustible carbonaceous material for the reuse of the resulting molten product, for example, as aggregate. A gas for combustion is supplied to the bed at an intermediate portion between its upper and lower portions while causing the resulting combustion gas to flow through the bed dividedly upward and downward.
    Type: Grant
    Filed: March 20, 1980
    Date of Patent: August 31, 1982
    Assignee: Osaka Gas Kabushiki Kaisha
    Inventor: Takeo Nakamura, deceased