Patents by Inventor Takehito Asai

Takehito Asai 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).

  • Insecticidal composition
    Patent number: 6022881
    Abstract: The presence of isobornyl thiocyanoethyl ether exerts a synergistic effect on the insecticidal activity against harmful wood eating insects of certain known insecticides selected from the group consisting of imidacloprid, phenyl pyrazole insecticides, pyrethroid insecticides and non-ester pyrethroid insecticides.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: February 8, 2000
    Assignee: Sankyo Company, Limited
    Inventors: Takehito Asai, Kenya Okumura, Toshiyasu Shizawa
  • Insecticidal composition
    Patent number: 5935943
    Abstract: The presence of isobornyl thiocyanoethyl ether exerts a synergistic effect on the insecticidal activity against harmful wood eating insects of certain known insecticides selected from the group consisting of imidacloprid, phenyl pyrazole insecticides, pyrethroid insecticides and non-ester pyrethroid insecticides.
    Type: Grant
    Filed: September 9, 1997
    Date of Patent: August 10, 1999
    Assignee: Sankyo Company, Limited
    Inventors: Takehito Asai, Kenya Okumura, Toshiyasu Shizawa