Inventor · Tokyo, JP

Keiko Takahashi

25Patents
11h-index
58Co-inventors
78Inventor score

Filing activity: Mar 19, 1985 → Sep 14, 2009

Most-cited inventions

PatentTitleAreaCited byStatus
US7253286B2 Nitrogen-containing aromatic derivatives Chemistry; Metallurgy 131 Expired
US6790844B2 Certain 1,3-disubstituted isoquinoline derivatives Chemistry; Metallurgy 85 Expired
US6787534B2 Sulfonamide-containing heterocyclic compounds Chemistry; Metallurgy 70 Expired
US7612092B2 Nitrogen-containing aromatic derivatives Chemistry; Metallurgy 43 Expired
US6340759B1 Fused pyridine derivatives Chemistry; Metallurgy 42 Expired
US7855290B2 Pyridine derivatives and pyrimidine derivatives (3) Chemistry; Metallurgy 34 Active
US8377938B2 Phenoxypyridine derivative salts and crystals thereof, and process for preparing the same Chemistry; Metallurgy 31 Active
US8288538B2 Pyridine derivatives and pyrimidine derivatives (3) Chemistry; Metallurgy 30 Active
US6448243B1 1,4-substituted cyclic amine derivatives Chemistry; Metallurgy 29 Expired
US4794115A Method of treating hyperlipemia Human Necessities 16 Expired
US4619938A Fatty acid derivatives of aminoalkyl nicotinic acid esters and platelet aggregation inhibitors Chemistry; Metallurgy 11 Expired
US7109219B2 Nitrogen-containing aromatic derivatives Chemistry; Metallurgy 9 Expired
US4704393A 1-substituted 5-fluorouracil useful for inhibiting the aggregation of platelets Chemistry; Metallurgy 7 Expired
US7468380B2 Nitrogen-containing aromatic derivatives Chemistry; Metallurgy 6 Active
US6469043B1 Sulfonamide-containing indole compounds Chemistry; Metallurgy 4 Expired
US6579881B2 Indoles Chemistry; Metallurgy 4 Expired
US5478945A Thiazoline derivatives Chemistry; Metallurgy 4 Expired
US7531532B2 Pyridine derivative and pyrimidine derivative Chemistry; Metallurgy 4 Expired
US7071201B2 Quinoline derivatives Chemistry; Metallurgy 2 Expired
US6673787B2 Sulfonamide-containing indole compounds Chemistry; Metallurgy 1 Expired
US6875761B2 Certain 1,3-disubstituted isoquinoline derivatives Chemistry; Metallurgy 1 Expired
US6638964B2 Sulfonamide-containing indole compounds Chemistry; Metallurgy 0 Expired
US5672712A Thiazoline derivatives Chemistry; Metallurgy 0 Expired
US7834049B2 Integrin expression inhibitor Chemistry; Metallurgy 0 Active
US7754894B2 Crystalline sulfonamide-containing indole compound and process for preparing the same Human Necessities 0 Expired

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