Pressure member configured to inhibit wrinkle formation and fixing device
US9417575B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2015 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Jul 15, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2035
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A pressure member includes a base, an elastic layer outside the base, and a surface layer on the elastic layer, the surface layer containing a fluorine-containing resin. The surface layer is fixed on the elastic layer in a state of being stretched in the longitudinal direction of the pressure member, the elastic layer has a porosity of 20% by volume or more and 60% by volume or less, and when the elastic modulus of the elastic layer in the thickness direction is defined as E (ND) and the elastic modulus of the elastic layer in the longitudinal direction of the pressure member is defined as E (MD), E (MD)/E (ND) is larger than 1.0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.