Ink jet head substrate, ink jet head, method for manufacturing ink jet head substrate, method for manufacturing ink jet head, method for using ink jet head and ink jet recording apparatus
US6530650B2 · kind B2 · utility
13Cited by
12References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2001 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Jul 27, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/03
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides an ink jet head substrate comprising a heat generating resistance member forming a heat generating portion, an electrode wiring electrically connected to the heat generating resistance member, and an anti-cavitation film provided on the heat generating resistance member and the electrode wiring via an insulation protection layer, and wherein the anti-cavitation film is formed from different materials with more than two layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.