Thermal head
US4990935A · kind A · utility
2Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1988 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | Oct 17, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/345
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal head is provided which includes a substrate of insulating material, a plurality of heat elements aranged on the substrate, a common electrode connected to a first end of each of the heat elements, and a plurality of gold patterns, each of which is connected to a second end of each of the heat elements. A protective layer is disposed on each of the plurality of gold patterns for protecting the gold patterns from damage due to the formation of electrical contacts thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.