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. 27, 1989
Filed:
Sep. 04, 1987
Kikuo Yasuda, Yokohama, JP;
Kenyu Shibata, Inagi, JP;
Seijiro Honma, Yokohama, JP;
Toshimi Seki, Kawasaki, JP;
Kohichi Hasumi, Machida, JP;
Takeshi Masuda, Yokohama, JP;
Akihiro Izumi, Machida, JP;
Tsutomu Ishimori, Kawasaki, JP;
Kotaro Gotanda, Kawasaki, JP;
Masako Uno, Kawasaki, JP;
Teikoku Hormone Mfg. Co., Ltd., Tokyo, JP;
Abstract
A pyridazinone derivative represented by the following general formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group, either one of R.sub.2, R.sub.3 and R.sub.4 represents a hydrogen atom and the remaining two of them represent a lower alkyl group, a trifluoromethyl group, a halogen atom, a cyano group or a nitro group, and a salt thereof. The compounds are useful as antihypertensive agents.