Transformer
US5598135A · kind A · utility
30Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1992 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Sep 21, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F19/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A transformer contains a multi-layered coil block which is formed by laminating and sintering sheets having conduction patterns. External electrodes which are connected to the conduction patterns are formed at the edges of the multi-layered coil block. A hole is made at the center of the multi-layered coil block, and a core is inserted into the hole. For the sheet material, a ceramic material containing glass is used. For the ceramic material, for example, an alumina ceramic material or dielectric ceramic material is used. Also, for the glass, for example, lead glass, borosilicate zinc glass, or borosilicate lead glass is used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.