Inventor · Ugo, JP

Katsuhiko Shibuya

76Patents
16h-index
93Co-inventors
87Inventor score

Filing activity: Aug 24, 1987 → Nov 11, 2016

Most-cited inventions

PatentTitleAreaCited byStatus
US4803277A Novel heterocyclic compounds Chemistry; Metallurgy 62 Expired
US4914113A Insecticidal imidazolines Chemistry; Metallurgy 50 Expired
US5034524A Insecticidal heterocyclic compounds Chemistry; Metallurgy 40 Expired
US4988712A Insecticidal azolylmethyl-1,2-dihydropyridines Chemistry; Metallurgy 38 Expired
US4882344A Pyridylmethyl-4-thiazolines Chemistry; Metallurgy 33 Expired
US6310049A Nematicidal pyrazoles Chemistry; Metallurgy 31 Expired
US5032589A Insecticidal heterocyclic compounds Chemistry; Metallurgy 28 Expired
US5051434A Insecticidally active nitro guanidine compounds Electricity 25 Expired
US5719146A Insecticidal heterocyclic compounds Chemistry; Metallurgy 23 Expired
US4902335A Benzo-fused cyclic compounds Chemistry; Metallurgy 22 Expired
US4880933A Nitro- or cyano-derivatives of 2-imino-imidazolines and 2-imino-tetrahydropyrimidines Chemistry; Metallurgy 22 Expired
US5238949A Insecticidally active nitro pyridyl compounds Electricity 20 Expired
US8410141B2 Insecticidal arylpyrrolines Chemistry; Metallurgy 19 Active
US5204359A Insecticidally active nitro compounds Electricity 17 Expired
US5084467A Insecticidally active nitro guanidine compounds Emerging Cross-Sectional Technologies 16 Expired
US5384324A Insecticidally active cyano compounds Chemistry; Metallurgy 16 Expired
US5066808A Pyridyl insecticidally active cyano compounds Chemistry; Metallurgy 15 Expired
US6734198B1 Nematicidal trifluorobutenes Human Necessities 14 Expired
US6743814B2 Nematicidal trifluorobutenes Chemistry; Metallurgy 13 Expired
US6232309A Insecticidal heterocyclic compounds Chemistry; Metallurgy 13 Expired
US6344453B1 Insecticidal heterocyclic compounds Chemistry; Metallurgy 11 Expired
USRE35811E Insecticidally active nitro guanidine compounds General 11 Expired
US4876263A Pesticidal nitro-substituted heterocyclic compounds Chemistry; Metallurgy 11 Expired
US8202877B2 Aminopyrimidinamides as pesticides Chemistry; Metallurgy 10 Active
US8188122B2 Insecticidal aryl pyrrolidines Chemistry; Metallurgy 8 Active

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