Printing head for ink jet printer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 26, 1989
Grant Date -
N/A
app pub date -
Jan 27, 1989
filing date -
Jan 29, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A printing head for use in an ink jet printer having a head body formed of a photosensitive polyimido resin, a plurality of grooves defined in the head body and an upper plate to be disposed on the head body for covering the grooves for forming a plurality of ink passages. An ink opening area of the ink passage is coated with an ink-phobic organic plasma polymer film while a remaining area of the passage is coated with an ink-philic organic plasma polymer film. When a water-based ink is employed, the ink-philic organic plasma polymer film may contain oxygen atoms and/or nitrogen atoms while the ink-phobic organic plasma polymer film may contain halogen atoms. When an oil-based ink is employed, the ink-philic organic plasma polymer film may contain halogen atoms while the ink-phobic organic plasma polymer film may contain oxygen atoms and/or nitrogen atoms.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully