Patents by Inventor Hiroyuki Mitsudera

Hiroyuki Mitsudera 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).

  • Condensed heterocyclic compounds, their production and use
    Patent number: 5498774
    Abstract: A condensed heterocyclic compound of the general formula: ##STR1## wherein Q is a condensed heterocyclic group having a nitrogen atom in the bridgehead which is unsubstituted or substituted, X is a hydrogen atom or a group attached through C, O, S or N, and Y is an electron attractive group, or its salt which is useful as agricultural chemical.
    Type: Grant
    Filed: October 25, 1993
    Date of Patent: March 12, 1996
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Hiroyuki Mitsudera, Masato Konobe, Yasuo Ishida, Kazuho Matsuura
  • Insecticidally, acaricidally, and nematocidally 2-amino-1,3-dithiane derivatives and pesticidal compositions therefor
    Patent number: 4640929
    Abstract: A novel 1,3-dithiane of the formula ##STR1## wherein R.sup.1 is a di-substituted amino group; R.sup.2 and R.sup.3 are such that one of them is an electron-withdrawing group with the other being a hydrogen atom, a hydrocarbon group or heterocyclic group of the class consisting of thienyl, triazolyl, and pyridyl, which may optionally be substituted or that R.sup.2 and R.sup.3 taken together with the adjacent carbon atom form a spiro ring provided that at least one of R.sup.2 and R.sup.3 is a carbonyl group; X.sup.1 and X.sup.2 each is a sulfur atom and at least one of X.sup.1 and X.sup.2 may be oxidized, or a salt thereof, possesses very useful pesticidal actions.
    Type: Grant
    Filed: August 23, 1983
    Date of Patent: February 3, 1987
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Hiroyuki Mitsudera, Kazuo Konishi, Yasuo Sato