Patents by Inventor Yoshihiro Hirobe

Yoshihiro Hirobe 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).

  • Heat fumigation apparatus
    Patent number: 4968487
    Abstract: A heat fumigation apparatus for transpiring a solution of a chemical agent dissolved in a solvent by heating which comprises a container having the solution therein, a wick a part of which is immersed in the solution and a heater for heating the upper portion of the wick thereby transpiring the solution drawn up the wick. The wick is composed of an inorganic powder and/or an organic powder, a binding agent and at least one antioxidant which is substantially non-evaporative at a heating temperature.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: November 6, 1990
    Assignee: Fumakilla Limited
    Inventors: Shinobu Yamamoto, Kunihiro Okada, Yoshihiro Hirobe, Ryo Yamamoto, Satoshi Ohi, Shiro Oyama, Yasuharu Takei