Ink-jet nozzle and a method for manufacturing same
US4437103A · kind A · utility
29Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 18, 1982 |
| Grant date | Mar 13, 1984 |
| Priority date | — |
| Expiry date | Jan 18, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49401
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink-jet nozzle for use in an ink-jet printer with stable ink discharging characteristics and excellent machining capability and a method for manufacturing same are provided. The present ink-jet nozzle is generally in the shape of a disc provided with a through-hole in the center which serves as an ink passage. The disc has a double annular structure in which the inner annular portion has the Vickers hardness value in the range between 500 and 600, whereas the outer annular portion has a value approximately a half thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.