Thermal head
US5594488A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 1995 |
| Grant date | Jan 14, 1997 |
| Priority date | — |
| Expiry date | May 10, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/3357
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal head including a temperature keeping layer disposed on a substrate, a plurality of heat generating elements formed on the temperature keeping layer, a plurality of individual electrodes connected to the corresponding heat generating elements, a common electrode connected to the heat generating elements, respectively. Each heat generating element includes a heat generating portion formed between one of the individual electrodes and the common electrode. Each of the individual electrodes and the common electrode have a dual layered structure including a lower electrode and an upper electrode, the lower electrode being formed between the temperature keeping layer and one of the heat generating elements, and the upper electrode being formed above the heat generating element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.