Patents by Inventor Mitsuru Kanzaki

Mitsuru Kanzaki 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).

  • Patent number: 5338720
    Abstract: A triazole compound represented by the formula: ##STR1## wherein X denotes a hydrogen atom, a halogen or a lower alkyl group, Y denotes a halogen substituted lower alkoxy group, R.sub.1 and R.sub.2 which may be the same or different each denotes an ethyl or propyl group, and n is an integer of 0-4, and a herbicidal composition comprising the compound as an active ingredient. The above compounds have excellent properties in that they not only exhibit marked herbicidal activities in a low dose against various weeds of rice paddies and plowed fields but also cause no injury to crops.
    Type: Grant
    Filed: February 3, 1993
    Date of Patent: August 16, 1994
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Masaki Takeuchi, Mitsuru Kanzaki
  • Patent number: 5147445
    Abstract: Novel triazole compounds represented by the general formulas I and II, a process for producing novel triazole compounds of the general formula I from novel triazole compounds of the general formula II as starting materials, and herbicides that include novel triazole compounds of the general formula I: ##STR1## where R.sub.1 and R.sub.2 which may be the same or different each represents a lower alkyl, cycloalkyl, alkenyl or alkynyl group, or R.sub.1 and R.sub.2, when taken together with the nitrogen atom to which they are bonded, represent an azacycloalkane having 4-6 carbon atoms;A represents a group represented by one of the following formulas: ##STR2## (where X is a hydrogen atom or an optionally hydroxyl substituted lower alkyl, cycloalkyl, alkoxy, alkoxycarbonyl, alkylcarbonyl, phenoxy, benzyl or .alpha.-hydroxybenzyl group, a halogen, a nitro group, an amino group or trifluoromethyl group; R.sub.
    Type: Grant
    Filed: January 25, 1991
    Date of Patent: September 15, 1992
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Masaki Takeuchi, Mitsuhiro Yasuda, Mitsuru Kanzaki