Electrically heated substrate with multiple ceramic parts each having different volume restivities
US6204489A · kind A · utility
22Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1998 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | Dec 22, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49083
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A heater including a substrate having a heating surface to treat a substance to be heated on the substrate, a heating element embedded in the substrate, and a resistance control part. The substrate includes a first ceramic material and the resistance control part includes a second ceramic material which has higher volume resistivity than that of the first ceramic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.