Ink jet recording head and apparatus having a protective member formed above energy generators for generating energy used to discharge ink
US5491505A · kind A · utility
48Cited by
23References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1994 |
| Grant date | Feb 13, 1996 |
| Priority date | — |
| Expiry date | Aug 2, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/13
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet recording head includes energy generators for generating the energy used to discharge ink and a substrate on which a circuit electrically connected to the energy generators is formed. Also provided is a protective member on an insulating layer on the substrate above the energy generators. The area of a protective member which is in contact with the ink is made to be as small as possible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.