Patents by Inventor Hirosato Takikawa

Hirosato Takikawa 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).

  • Germination-stimulant carbamate derivatives and process for preparation thereof
    Patent number: 8822383
    Abstract: Provided is a novel compound which can germinate seeds of root parasitic plants, more specifically, a compound represented by the formula: wherein R1, R2, R3, R4, and R5 are the same or different and each represents a hydrogen atom, a halogen atom, a lower alkyl group, or a lower alkoxy group, or R1 and R2 are linked together to form a lower alkylenedioxy group, or R1 and R2 together with the adjacent carbon atoms form a benzene ring, or R2 and R3 are linked together to form a lower alkylenedioxy group, or R2 and R3 together with the adjacent carbon atoms form a benzene ring, R6 represents a hydrogen atom or a lower alkyl group, X and Y are the same or different and each represents an oxygen atom and a sulfur atom, and n represents an integer of 0, 1 or 2, and a method for controlling root parasitic plants.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: September 2, 2014
    Assignees: National University Corporation KOBE UNIVERSITY, Sumitomo Chemical Company, Limited
    Inventors: Mitsuru Sasaki, Yukihiro Sugimoto, Hirosato Takikawa, Hideyoshi Miyake, Noritada Matsuo
  • GERMINATION-STIMULANT CARBAMATE DERIVATIVES AND PROCESS FOR PREPARATION THEREOF
    Publication number: 20130085068
    Abstract: Provided is a novel compound which can germinate seeds of root parasitic plants, more specifically, a compound represented by the formula: wherein R1, R2, R3, R4, and R5 are the same or different and each represents a hydrogen atom, a halogen atom, a lower alkyl group, or a lower alkoxy group, or R1 and R2 are linked together to form a lower alkylenedioxy group, or R1 and R2 together with the adjacent carbon atoms form a benzene ring, or R2 and R3 are linked together to form a lower alkylenedioxy group, or R2 and R3 together with the adjacent carbon atoms form a benzene ring, R6 represents a hydrogen atom or a lower alkyl group, X and Y are the same or different and each represents an oxygen atom and a sulfur atom, and n represents an integer of 0, 1 or 2, and a method for controlling root parasitic plants.
    Type: Application
    Filed: March 30, 2011
    Publication date: April 4, 2013
    Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, National University Corporation KOBE UNIVERSITY
    Inventors: Mitsuru Sasaki, Yukihiro Sugimoto, Hirosato Takikawa, Hideyoshi Miyake, Noritada Matsuo