Piezoelectric device
US10056542B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2016 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Mar 15, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/878
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A piezoelectric device including a paper film including cellulose fibers and containing an additive selected from the group including 4-fluorophenethyl isocyanate, 2-2 diphenyl-ethyl isocyanate, nitrophenyl isocyanate, 1-adamantyl iso-cyanate, cyanophenyl isocyanate, and triphenylamine grafted to the cellulose fibers, the film further having a first surface and a second surface opposite to the first surface and a first electrode arranged on the first surface and a second electrode arranged on the second surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.