Sumida Electric Co., Ltd.
7Patents
4Active
7Granted
48Portfolio score
Filing activity: Jun 4, 1999 → Sep 24, 2021 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD434723S | Transformer | General | 48 | Expired |
| US7042324B2 | Surface mount inductor | Electricity | 6 | Expired |
| US6950002B2 | Inductance element | Electricity | 5 | Expired |
| US7397336B2 | Coil component | Electricity | 3 | Active |
| US7259650B2 | Magnetic element | Electricity | 3 | Active |
| US11657962B2 | Method for manufacturing electronic component with coil | Emerging Cross-Sectional Technologies | 0 | Active |
| US7515443B2 | Inverter circuit | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.