Patents by Inventor Takuji Kohama

Takuji Kohama 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).

  • Poison bait for control of noxious insects
    Patent number: 5300293
    Abstract: A bait composition in a tablet form, which comprises as the essential components (a) at least one insect-growth controlling agent selected from (a-1) insect juvenile hormone-like compounds and (a-2) insect chitin-synthesis inhibitors in a microencapsulated form and (b) dextrin, optionally with an additional or auxiliary agent(s).
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: April 5, 1994
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Fumiyasu Minagawa, Takuji Kohama, Hitoshi Kawada, Toshiro Ohtsubo, Goro Shinjo, Kazuyuki Maeda
  • Poison bait for control of noxious insects
    Patent number: 5096710
    Abstract: A bait composition in a tablet form, which comprises as the essential components (a) at least one insect-growth controlling agent chosen from (a-1) insect juvenile hormone-like compounds and (a-2) insect chitin-synthesis inhibitors, (b) dextrin and (c) a plant oil in an amount of not more than 10% by weight to the total bait composition.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: March 17, 1992
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Fumiyasu Minagawa, Takuji Kohama, Hitoshi Kawada, Goro Shinjo, Kazuyuki Maeda
  • Poison bait for control of noxious insects
    Patent number: 4985413
    Abstract: A composition which comprises (a) at least one insecticide selected from the group consisting of organic phosphorous insecticides, carbamate insecticides and pyrethroid insecticide, (b) crystalline cellulose and (c) crop product powders evaporated with (d) an essential oil and (e) a saccharide respectively in amounts of 0.1 to 10.0% by weight and 10.0 to 40.0% by weight based on the total weight of the composition, which is useful as a bait for the control of noxious insects.
    Type: Grant
    Filed: March 4, 1988
    Date of Patent: January 15, 1991
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Takuji Kohama, Fumiyasu Minagawa, Goro Shinjo, Kazuyuki Maeda
  • Poison bait for control of noxious insects
    Patent number: 4834977
    Abstract: A composition which includes (a) at least one insecticide selected from the group consisting of organic phosphorous insecticides, carbamate insecticides and pyrethroid insecticides in a microencapsulated form, (b) crystalline cellulose and (c) crop product powders, which is useful as a bait for control of noxious insects.
    Type: Grant
    Filed: March 4, 1988
    Date of Patent: May 30, 1989
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Takuji Kohama, Fumiyasu Minagawa, Goro Shinjo, Shigenori Tsuda, Kazuyuki Maeda