Patents by Inventor Masako Uno

Masako Uno 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).

  • Antihypertensive pyridazinone aminoisopropanol derivatives
    Patent number: 4843072
    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.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: June 27, 1989
    Assignee: Teikoku Hormone Mfg. Co., Ltd.
    Inventors: Kikuo Yasuda, Kenyu Shibata, Seijiro Honma, Toshimi Seki, Kohichi Hasumi, Takeshi Masuda, Akihiro Izumi, Tsutomu Ishimori, Kotaro Gotanda, Masako Uno