Inductor and method of manufacturing same
US6650529B1 · kind B1 · utility
7Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1999 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Dec 21, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F17/045
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inductor includes a bar-shaped ferrite core and a spiral coil. The spiral coil is formed by removing a portion of a conductive film formed at least around the peripheral surface of the ferrite core. The surface of the ferrite core is impregnated with an insulating glass before the conductive film is formed. The content of the glass is preferably about 0.1% to about 20% by weight of the ferrite core. The ferrite core is preferably an Ni—Zn-based ferrite core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.