Patents by Inventor Shigeharu Koyama

Shigeharu Koyama 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).

  • Plant treatment agents
    Patent number: 6063393
    Abstract: The present invention relates to a process for the treatment of individual plants with solid shaped plant treatment agents which are introduced into the sap conduction paths of the plants, new solid shaped plant treatment agents and their production.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: May 16, 2000
    Assignee: Nihon Bayer Agrochem K.K.
    Inventors: Shin-ichi Tsuboi, Atsumi Kamochi, Nobuhiro Yamashita, Ikuya Saito, Yuzuru Wada, Kunihiro Isono, Shigeharu Koyama
  • Pesticidal compositions in paste form
    Patent number: 5951994
    Abstract: Novel pasty compositions for the control of animal pests and fungal diseases on plants, which compositions compriseat least one pesticidally active or fungicidally active compound andat least one adjuvant, which is solid, liquid or pasty at room temperature andoptionally, one or more excipients and water.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: September 14, 1999
    Assignee: Nihon Bayer Agrochem K. K.
    Inventors: Yuzuru Wada, Yuichi Otsu, Kunihiro Isono, Shigeharu Koyama, Shinzaburo Sone
  • Method for the treatment of plants with agrochemical tablet compositions
    Patent number: 5883045
    Abstract: Novel method for applying agrochemicals to plants, which method consists in attaching to the surface of the plants tablets comprisingat least one agrochemically active compound andat least one adjuvant, which is solid, liquid of pasty at room temperature, andoptionally, one or more excipients optionally in admixture with one or more other additives and/or water.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: March 16, 1999
    Assignee: Nihon Bayer Agrochem K.K.
    Inventors: Yuzuru Wada, Yuichi Otsu, Kunihiro Isono, Shigeharu Koyama, Shinzaburo Sone
  • Agrochemical compositions containing certain N-heterocycligs, compounds and stabilizer
    Patent number: 5521176
    Abstract: Compositions which contain, as the active ingredients, a combination of heterocyclic compounds of the general formula (I) and organophosphorous compounds, in addition to one or more compounds having a polyethyleneglycol or polypropyleneglycol chain or an ethyleneglycol-propyleneglycol copolymeric chain, or a mixture of these compounds which results in a stabilization of the active ingredients without any adverse influences on the physical properties of the formulations.
    Type: Grant
    Filed: November 17, 1993
    Date of Patent: May 28, 1996
    Assignee: Nihon Bayer Agrochem K.K.
    Inventors: Yuzuru Wada, Shigeharu Koyama
  • Stabilized agrochemical compositions
    Patent number: 5260312
    Abstract: Compositions which contain, as the active ingredients, a combination of heterocyclic compounds of the general formula (I) and organophosphorous compounds, in addition to one or more compounds having a polyethyleneglycol or polypropyleneglycol chain or an ethyleneglycol-propyleneglycol copolymeric chain, or a mixture of these compounds which results in a stabilization of the active ingredients without any adverse influences on the physical properties of the formulations.
    Type: Grant
    Filed: May 13, 1992
    Date of Patent: November 9, 1993
    Assignee: Nihon Bayer Agrochem K.K.
    Inventors: Yuzuru Wada, Shigeharu Koyama
  • Stabilized agrochemical compositions
    Patent number: 5140019
    Abstract: Compositions which contain, as the active ingredients, a combination of heterocyclic compounds of the general formula (I) and organophosphorous compounds, in addition to one or more compounds having a polyethyleneglycol or polypropyleneglycol chain or an ethyleneglycol-propyleneglycol copolymeric chain, or a mixture of these compounds which results in a stabilization of the active ingredients without any adverse influences on the physical properties of the formulations.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: August 18, 1992
    Assignee: Nihon Tokushu Noyaku Seizo K.K.
    Inventors: Yuzuru Wada, Shigeharu Koyama