Ink jet recording head and ink jet recording apparatus
US6328429A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2000 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Apr 4, 2020 |
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 including a base plate substrate formed by a first base plate substrate and a second base plate substrate in which the thermal expansion coefficient of the first base plate substrate directly in contact with a substrate having discharge energy generating elements arranged thereon is smaller than that of the second base plate substrate and the first base plate substrate is formed by material having the thermal expansion coefficient closer to that of the substrate having the discharge energy generating elements arranged therefor, and at the same time, the first base plate substrate, above which the discharge energy generating elements are placed, is supported by a surface of the second base plate substrate and a side face in the longitudinal direction of the second base plate substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.