Michio Ichimura
22Patents
11h-index
65Co-inventors
78Inventor score
Filing activity: Sep 9, 1988 → May 22, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4923990A | Pyrindamycins A and B and duocarmycin A antibiotics derived from certain streptomyces culture | Chemistry; Metallurgy | 108 | Expired |
| US6423716B1 | Nitrogenous heterocyclic compounds | Chemistry; Metallurgy | 93 | Expired |
| US6169088A | 1,3 diazines with platelet-derived growth factor receptor inhibitory activity | Chemistry; Metallurgy | 30 | Expired |
| US5138059A | DC-89 compounds and process for their preparation | Chemistry; Metallurgy | 25 | Expired |
| US6472391B2 | Nitrogen-containing heterocyclic compounds | Chemistry; Metallurgy | 24 | Expired |
| US6207667A | 1,3 diazines with platelet-derived growth factor receptor inhibitory activity | Chemistry; Metallurgy | 21 | Expired |
| US6222035A | [1,2,4] triazolo [1,5-C] pyrimidine derivatives | Human Necessities | 14 | Expired |
| US5300490A | Anticoagulant substance obtained from urine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5202421A | Anticoagulant substance obtained from urine and process for the preparation thereof | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6716987B1 | Derivatives of benzofuran or benzodioxazole compounds | Chemistry; Metallurgy | 12 | Expired |
| US6750218B2 | Nitrogen-containing heterocyclic compounds | Chemistry; Metallurgy | 11 | Expired |
| US6514996B2 | Derivatives of benzofuran or benzodioxole | Chemistry; Metallurgy | 9 | Expired |
| US5698560A | Imidazoquinazoline derivatives | Chemistry; Metallurgy | 5 | Expired |
| US6982266B2 | Quinazoline derivatives as kinase inhibitors | Chemistry; Metallurgy | 5 | Expired |
| US5661147A | Imidazoquinazoline derivatives | Chemistry; Metallurgy | 4 | Expired |
| US6127541A | Imidazoquinazoline derivatives | Chemistry; Metallurgy | 3 | Expired |
| US6306847A | Condensed purine derivatives | Human Necessities | 2 | Expired |
| US6956039B2 | Nitrogenous heterocylic compounds | Chemistry; Metallurgy | 0 | Expired |
| US7560461B2 | Quinazoline derivatives as kinase inhibitors | Chemistry; Metallurgy | 0 | Active |
| US7329655B2 | Nitrogenous heterocyclic compounds | Chemistry; Metallurgy | 0 | Expired |
| US8022071B2 | Nitrogenous heterocyclic compounds | Chemistry; Metallurgy | 0 | Active |
| US8324205B2 | Quinazoline derivatives as kinase inhibitors | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.