Tetsuo NAGANO
18Patents
3Active
18Granted
34Portfolio score
Filing activity: Oct 17, 1997 → Oct 25, 2010 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6569892B2 | Diaminofluorescein derivatives | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6525088B1 | Agent for measurement of singlet oxygen | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6469051B2 | Diaminorhodamine derivative | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5874590A | Diaminofluorescein derivative | Chemistry; Metallurgy | 16 | Expired |
| US7087766B2 | Reagents for the quantitation of active oxygen | Physics | 12 | Expired |
| US6441197B1 | Diaminofluorescein derivative | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6833386B2 | Diaminofluorescein derivatives | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7524974B2 | Fluorescent probe | Physics | 9 | Expired |
| US6756231B1 | Diaminorhodamine derivative | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6903226B2 | Fluorescent probe for the quantitation of zinc | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6656927B1 | Ip3 receptor ligands | Chemistry; Metallurgy | 4 | Expired |
| US7868147B2 | Fluorescent probe | Chemistry; Metallurgy | 3 | Active |
| USRE40572E1 | Fluorescent probe for the quantitation of zinc | General | 3 | Expired |
| US7618997B2 | Diaminofluorescein derivatives | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7378282B2 | Method for measuring hypochlorite ion | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7074823B2 | Fluorescent probe for zinc | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7696245B2 | Fluorescent probe for zinc | Physics | 2 | Active |
| US7939330B2 | Fluorescent probe | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.