Laminated device
US8004381B2 · kind B2 · utility
8Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2007 |
| Grant date | Aug 23, 2011 |
| Priority date | — |
| Expiry date | Jul 5, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F41/046
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A laminated device comprising pluralities of magnetic ferrite layers, conductor patterns each formed on each magnetic ferrite layer and connected in a lamination direction to form a coil, and a non-magnetic ceramic layer formed on at least one magnetic ferrite layer such that it overlaps the conductor patterns in a lamination direction, the non-magnetic ceramic layer comprising as main components non-magnetic ceramics having higher sintering temperatures than that of the magnetic ferrite, and further one or more of Cu, Zn and Bi in the form of an oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.