Inventor · Tsukuba, JP

Keiko Koh

3Patents
1h-index
11Co-inventors
34Inventor score

Filing activity: Oct 21, 1993 → Dec 6, 1995

Most-cited inventions

PatentTitleAreaCited byStatus
US5506361A Imidazobenzoquinones and composition for preventing or treating hypertension or congestive heart failure containing the same Chemistry; Metallurgy 4 Expired
US5442062A Imidazole derivatives and pharmaceutical compositions containing the same Chemistry; Metallurgy 1 Expired
US6005105A Process for producing imidazole derivative Chemistry; Metallurgy 0 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.