Katsuhiko Shibuya
76Patents
16h-index
93Co-inventors
87Inventor score
Filing activity: Aug 24, 1987 → Nov 11, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| 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.