Sumida Technologies Incorporated
6Patents
0Active
6Granted
25Portfolio score
Filing activity: Dec 28, 1999 → Sep 14, 2005
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6356179B1 | Inductance device | Electricity | 77 | Expired |
| US7183886B2 | Inductance device | Electricity | 11 | Expired |
| US6650218B1 | Inverter transformer | Electricity | 11 | Expired |
| US6919693B2 | High-voltage transformer and discharge lamp driving apparatus | Electricity | 8 | Expired |
| US6249202A | Inductance element | Electricity | 5 | Expired |
| US6933821B2 | Leakage transformer | Electricity | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.