Patents by Inventor Christopher W. Yamamoto

Christopher W. Yamamoto 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: 6432882
    Abstract: Several methods and multiple apparatus are disclosed for atomizing or vaporizing chlorpropham or any other organic compound that is a solid at ambient temperature and pressure conditions, without the need for converting the compound to a liquid which must be contained and transported by the aerosol-generating apparatus. The method provides an air stream that can be nearly saturated with chlorpropham vapor and free of both combustion products and carrier solvents. The process includes the steps of forming minute particles of solid CIPC particles from a larger block or chunks of solid CIPC, and inducting the particles into an airstream wherein the particles are provided with sufficient thermal energy to convert them into an aerosol. The process may be implemented by abrading a block of solid CIPC with a wire brush, by shaving a block of solid CIPC with a blade, or by pulverizing chunks of solid CIPC to convert it to a powder.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: August 13, 2002
    Inventor: Christopher W. Yamamoto
  • Patent number: 5723184
    Abstract: A method and apparatus are disclosed for atomizing or vaporizing chloroprofam or any other organic compound that is a solid at ambient temperature and pressure conditions. The method provides an air stream that can be nearly saturated with chloroprofam vapor and free of both combustion products and carrier solvents. In addition, the temperature of the air stream can be maintained at a temperature that is sufficiently low that it will not adversely affect tubers which are bathed in the air stream. The method includes introducing heated liquified chloroprofam under extreme pressure into a moving air mass within an atomization duct. An apparatus by which the method may be practiced includes a fluid delivery tube which transports liquified chloroprofam under pressure, first to a liquid-heating heat exchanger, and second to a discharge nozzle within a vaporization duct.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: March 3, 1998
    Inventor: Christopher W. Yamamoto