Patents by Inventor Yoshimi Yajima

Yoshimi Yajima 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).

  • Hydrazine derivative and pesticidal composition comprising said derivative as an effective ingredient
    Patent number: 5530021
    Abstract: A novel hydrazine derivative and a pesticidal composition containing the hydrazine derivative as the effecting ingredient. The hydrazine derivative show high pesticidal activity against harmful pests which are resistant to known pesticides such as organophosphorus pesticides, pyrethroids, etc., especially against Lepidoptera harmful pests such as Plutella xylostella, Spodoptera litura, Cnaphalocrocis medinalis, Adoxophyes orana, etc., and is effective for controlling harmful pests in paddy field, upland field, orchard, forest or places to be kept environmentally hygienic.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: June 25, 1996
    Assignees: Nippon Kayaku Kabushiki Kaisha, Sankyo Company, Limited
    Inventors: Mikio Yanagi, Hiroyasu Sugizaki, Tetsuya Toya, Yasuhito Kato, Hidetoshi Shirakura, Tetsuo Watanabe, Yoshimi Yajima, Seiichirou Kodama, Akio Masui, Toshiaki Yanai, Yoshihisa Tsukamoto, Yoshihiro Sawada, Shinji Yokoi
  • New hydrazine derivative and pesticidal composition comprising said derivative as an effective ingredient
    Patent number: 5378726
    Abstract: A novel hydrazine derivative and a pesticidal composition containing the hydrazine derivative as the effecting ingredient. The hydrazine derivative show high pesticidal activity against harmful pests which are resistant to known pesticides such as organophosphorus pesticides, pyrethroids, etc., especially against Lepidopters harmful pests such as Plutella xylostella, Spodoptera litura, Cnaphalocrocis medinalis, Adoxophyes orana, etc., and is effective for controlling harmful pests in paddy field, upland field, orchard, forest or places to be kept environmentally hygienic.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: January 3, 1995
    Assignees: Nippon Kayaku Kabushiki Kaisha, Sankyo Company, Limited
    Inventors: Mikio Yanagi, Hiroyasu Sugizaki, Tetsuya Toya, Yasuhito Kato, Hidetoshi Shirakura, Tetsuo Watanabe, Yoshimi Yajima, Seiichirou Kodama, Akio Masui, Toshiaki Yanai, Yoshihisa Tsukamoto, Yoshihiro Sawada, Shinji Yokoi