Ink jet recording head substrate, method for manufacturing the same, and ink jet recording head
US9333746B2 · kind B2 · utility
6Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2015 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Jul 1, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/03
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet recording head substrate is provided which includes a base substrate, a heat accumulation layer overlying the base substrate, a heating resistor layer including an electrothermal conversion portion and overlying the heat accumulation layer, a wiring layer electrically connected to the heating resistor layer, and an insulating protective layer covering the heating resistor layer and the wiring layer. The heat accumulation layer includes a porous cyclic siloxane film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.