Patents by Inventor Chiaki Imai

Chiaki Imai 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).

  • Tricyclic compounds having fungicidal activity, their preparation and their use
    Patent number: 5981752
    Abstract: Compounds of formula (I): ##STR1## [wherein: R.sup.1 represents halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, cycloalkyl, or cycloalkyloxy; R.sup.2 represents hydrogen or halogen; R.sup.3 represents hydrogen, alkyl, or cycloalkyl; and the dotted line represents a single or double carbon--carbon bond]; and salts thereof have valuable fungicidal activities which make them of considerable value in agriculture and horticulture.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: November 9, 1999
    Assignee: Sankyo Company, Limited
    Inventors: Hideo Takeshiba, Chiaki Imai
  • Tricyclic compounds having fungicidal activity, their preparation and their use
    Patent number: 5773618
    Abstract: Compounds of formula (I): ##STR1## ?wherein: R.sup.1 represents halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, cycloalkyl, or cycloalkyloxy; R.sup.2 represents hydrogen or halogen; R.sup.3 represents hydrogen, alkyl, or cycloalkyl; and the dotted line represents a single or double carbon--carbon bond!; and salts thereof have valuable fungicidal activities which make them of considerable value in agriculture and horticulture.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: June 30, 1998
    Assignee: Sankyo Company, Limited
    Inventors: Hideo Takeshiba, Chiaki Imai, Hiroshi Ohta, Shigehiro Kato, Hiroyuki Itoh