Liquid ejecting head and liquid ejecting apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Mar 1, 2016
Grant Date -
Oct 4, 2012
app pub date -
Mar 29, 2012
filing date -
Mar 31, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The portions at the circumferential edges of a flow channel formation plate in which the corner portions of a dummy flow channel portion are formed are weaker than other portions, and thus when thermal stress has occurred due to temperature changes when the constituent elements of a flow channel unit are affixed to each other, cracks can be induced preferentially in the weak portion, rather than the other portions, starting from the ends of the corner portions. In particular, although similar corner portions are formed in a common liquid chamber, the intersection angle of the corner portions in the dummy flow channel portion is smaller than the intersection angle of the corner portions in the common liquid chamber, and thus it is easier for stress to concentrate in the corner portions of the dummy flow channel portion.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| JP | A | JP2012210774 | Mar 31, 2011 |
International Classification(s)
- 2012 Application Filing Year
- B05B Class
- 882 Applications Filed
- 705 Patents Issued To-Date
- 79.94 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B05B Class
- 0 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 1, 2027 |
