The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 1998
Filed:
Oct. 09, 1996
Sumio Yokota, Shizuoka, JP;
Masafumi Matsuzawa, Shizuoka, JP;
Nobuyuki Ohba, Shizuoka, JP;
Toshihiro Nagata, Shizuoka, JP;
Shigehiko Tachikawa, Shizuoka, JP;
Takeshige Miyazawa, Shizuoka, JP;
Katsutada Yanagisawa, Shizuoka, JP;
Kumiai Chemical Industry Co., Ltd., Tokyo, JP;
Ihara Chemical Industry Co., Ltd., Tokyo, JP;
Abstract
A condensed heterocyclic derivative of the formula ##STR1## (wherein R is a hydroxyl group, R.sup.3 or R.sup.4 is an alkoxy group, W is an oxygen atom, Yn is a hydrogen atom, Z is a methine group, and A is a 5- or 6-membered heterocyclic ring which may be substituted, and a herbicide, are presented. When used for paddy field treatment, upland soil treatment and foliage treatment, the condensed heterocyclic derivative of the present invention exhibits excellent herbicidal activities against gramineous and non-gramineous weeds without adversely affecting crop plants.