Patents by Inventor Kyuichi Tanaka

Kyuichi Tanaka 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).

  • Glyphosate liquid formulations
    Patent number: 5789345
    Abstract: Glyphosate liquid formulations containing surfactants, especially of the amine type, often undergo a yellowish-brown discoloration on storage. This may be inhibited or prevented by incorporating a small amount of urea.
    Type: Grant
    Filed: January 9, 1997
    Date of Patent: August 4, 1998
    Assignee: Sankyo Company, Limited
    Inventors: Kenji Yasui, Kyuichi Tanaka
  • Stable solid agricultural chemical composition and process for preparation thereof
    Patent number: 4107300
    Abstract: In a solid agricultural chemical composition containing an unstable active ingredient, when a small amount of anhydrous calcium chloride, calcium chloride monohydrate or calcium chloride dihydrate is incorporated, the active ingredient can be highly stabilized. The quality and physical properties, such as flowability, of the solid agricultural chemical composition are not at all degraded by incorporation of said stabilizer.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: August 15, 1978
    Assignee: Sankyo Company Limited
    Inventors: Toshiie Nakamura, Hiromichi Shimizu, Kyuichi Tanaka, Akihiko Kunitomo, Kinji Tanizawa