Patents by Inventor Yasunobu Funakoshi

Yasunobu Funakoshi 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).

  • Diphenyl ether derivatives and herbicides containing same
    Patent number: 4619689
    Abstract: Novel diphenyl ether hydrazine derivatives, particularly 2-nitro-5 (nucleus-substituted phenoxy) phenylhydrazine derivatives are provided. They are useful as a selective herbicide having a high herbicidal activity and residual efficacy.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: October 28, 1986
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Takeo Yoshimoto, Akira Hosono, Joh Miki, Yasunobu Funakoshi, Takashi Fujita, Yoshikata Hojo
  • Diphenyl ether derivatives and herbicides containing same
    Patent number: 4566897
    Abstract: Novel diphenyl ether hydrazine derivatives, particularly 2-nitro-5 (nucleus-substituted phenoxy) phenylhydrazine derivatives are provided. They are useful as a selective herbicide having a high herbicidal activity and residual efficacy.
    Type: Grant
    Filed: March 15, 1984
    Date of Patent: January 28, 1986
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Takeo Yoshimoto, Akira Hosono, Joh Miki, Yasunobu Funakoshi, Takashi Fujita, Yoshikata Hojo
  • Diphenyl ether derivatives and herbicides containing same
    Patent number: 4515628
    Abstract: Novel diphenyl ether hydrazine derivatives, particularly 2-nitro-5 (nucleus-substituted phenoxy) phenylhydrazine derivatives are provided. They are useful as a selective herbicide having a high herbicidal acitivity and residual efficacy.
    Type: Grant
    Filed: July 28, 1981
    Date of Patent: May 7, 1985
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Takeo Yoshimoto, Akira Hosono, Joh Miki, Kengo Oda, Masaaki Ura, Naoki Sato, Teruhiko Toyama, Hajime Tachibana, Yuji Enomoto, Yasunobu Funakoshi, Takashi Fujita, Yoshikata Hojo
  • Tetrahydrofuran derivatives
    Patent number: 4308051
    Abstract: A tetrahydrofuran derivative represented by the general formula ##STR1## wherein X.sub.1 and X.sub.3 represent a hydrogen or halogen atom, and X.sub.2 represents a halogen atom or a trifluoromethyl group. The compounds have excellent herbicidal activity and can be prepared by reacting a compound of the formula ##STR2## wherein R represents a nitro group or a group of the formula ##STR3## in which X.sub.1, X.sub.2 and X.sub.3 are as defined above, with 3-hydroxytetrahydrofuran in the presence of an alkali.
    Type: Grant
    Filed: December 15, 1980
    Date of Patent: December 29, 1981
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Takeo Yoshimoto, Teruhiko Toyama, Keiichi Igarashi, Masaaki Ura, Yuji Enomoto, Yasunobu Funakoshi, Yoshikata Hojo