Patents by Inventor Keisuke MITSUGI

Keisuke MITSUGI 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).

  • 1-aryltetrahydropyridazine-3,5-dione derivative or salt thereof and insecticidal agent containing the compound and method for using same
    Patent number: 12698269
    Abstract: For example, in agricultural and horticultural crop production, pests, etc. still cause heavy damage, and there is a demand for the development of novel agricultural and horticultural insecticidal agents due to factors such as the emergence of pests resistant to existing drugs. The present invention has found that a compound represented by the general formula (1): wherein R1 represents an alkoxycarbonyl group or the like, R2 represents a substituted phenyl group or the like, R3 represents a hydrogen atom or the like, R4 represents a substituted phenyl group or the like, R5 represents an alkyl group or the like, Y represents an oxygen atom or the like and m and n each represent 0 or 1, or a salt thereof exhibits a high insecticidal effect on pests, etc. in the agricultural and horticultural field, and provides an agricultural and horticultural insecticidal agent comprising the same as an active ingredient and a method for using the same.
    Type: Grant
    Filed: March 23, 2023
    Date of Patent: August 4, 2026
    Assignee: NIHON NOHYAKU CO., LTD.
    Inventors: Naoya Fujita, Ryosuke Tanaka, Ikki Yonemura, Keisuke Mitsugi, Hinoki Oikawa, Taiki Yokoi, Takayuki Yamada
  • 1-ARYLTETRAHYDROPYRIDAZINE-3,5-DIONE DERIVATIVE OR SALT THEREOF AND INSECTICIDAL AGENT CONTAINING THE COMPOUND AND METHOD FOR USING SAME
    Publication number: 20250223275
    Abstract: For example, in agricultural and horticultural crop production, pests, etc. still cause heavy damage, and there is a demand for the development of novel agricultural and horticultural insecticidal agents due to factors such as the emergence of pests resistant to existing drugs. The present invention has found that a compound represented by the general formula (1): wherein R1 represents an alkoxycarbonyl group or the like, R2 represents a substituted phenyl group or the like, R3 represents a hydrogen atom or the like, R4 represents a substituted phenyl group or the like, R5 represents an alkyl group or the like, Y represents an oxygen atom or the like and m and n each represent 0 or 1, or a salt thereof exhibits a high insecticidal effect on pests, etc. in the agricultural and horticultural field, and provides an agricultural and horticultural insecticidal agent comprising the same as an active ingredient and a method for using the same.
    Type: Application
    Filed: March 23, 2023
    Publication date: July 10, 2025
    Applicant: NIHON NOHYAKU CO., LTD.
    Inventors: Naoya FUJITA, Ryosuke TANAKA, Ikki YONEMURA, Keisuke MITSUGI, Hinoki OIKAWA, Taiki YOKOI, Takayuki YAMADA