Yoshio Fukuda
14Patents
6h-index
58Co-inventors
69Inventor score
Filing activity: Sep 11, 1985 → Oct 29, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7253286B2 | Nitrogen-containing aromatic derivatives | Chemistry; Metallurgy | 131 | Expired |
| US5719303A | Phosphonic acid derivatives | Chemistry; Metallurgy | 61 | Expired |
| US7612092B2 | Nitrogen-containing aromatic derivatives | Chemistry; Metallurgy | 43 | Expired |
| US7109219B2 | Nitrogen-containing aromatic derivatives | Chemistry; Metallurgy | 9 | Expired |
| US7550503B2 | Physiologically active substances | Chemistry; Metallurgy | 7 | Active |
| US7256178B2 | Physiologically active substances | Chemistry; Metallurgy | 7 | Expired |
| US7468380B2 | Nitrogen-containing aromatic derivatives | Chemistry; Metallurgy | 6 | Active |
| US5453524A | Phosphorus-containing isoprenoid derivatives | Chemistry; Metallurgy | 5 | Expired |
| US4617400A | Process for preparing cyclic urea derivatives | Chemistry; Metallurgy | 5 | Expired |
| US6639089B2 | Anticancer agents, perfumes or foods and drinks | Human Necessities | 3 | Expired |
| US7619100B2 | Physiologically active substances | Chemistry; Metallurgy | 2 | Active |
| US5789403A | Substituted thiazolo 3,2-a!azepine derivatives | Emerging Cross-Sectional Technologies | 0 | Expired |
| US6051705A | Substituted thiazolo[3,2-a]azepine derivatives | Emerging Cross-Sectional Technologies | 0 | Expired |
| US7893068B2 | Physiologically active substances | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.