Surface heater, fixing device, and image forming apparatus
US9348279B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2015 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Sep 14, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2017
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A surface heater includes a heating body, insulation layers, and a first support layer and a second support layer. The heating body is interposed between the insulation layers. The heating body and the insulation layers are interposed between the first support layer and the second support layer. The first support layer has a first region superposed on the heating body and a second region not superposed on the heating body. The first support layer has at least one slit which is located at a side of an inner circumferential surface of the surface heater bent into an arc shape. The second region has the at least one slit and the first region has no slit, or the at least one slit includes a plurality of slits and the second region has a greater number of slits out of the plurality of slits than the first region has.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.