LIQUID EJECTION HEAD, LIQUID EJECTION APPARATUS, AND MANUFACTURING METHOD OF LIQUID EJECTION HEAD
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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N/A
Issued Date -
Apr 10, 2025
app pub date -
Sep 18, 2024
filing date -
Sep 18, 2024
priority date (Note) -
Published
status (Latency Note)
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Importance

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Abstract
An object is to provide a liquid ejection head capable of suppressing corrosion. The liquid ejection head attachable to and detachable from a liquid ejection apparatus comprises a liquid ejection unit capable of ejecting liquid and a support member capable of supporting the liquid ejection unit. In the liquid, a predetermined component is includes. In the support member, metal is included. The surface of the support member is covered with an oxide cover layer having a thickness of 1 μm or more provided by predetermined treatment.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
CANON KABUSHIKI KAISHA | 30-2 SHIMOMARUKO 3-CHOME OHTA-KU TOKYO 146-8501 |
International Classification(s)

- 2024 Application Filing Year
- B41J Class
- 1374 Applications Filed
- 27 Patents Issued To-Date
- 1.97 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
AMMA, HIROMASA | Kanagawa, JP | 68 | 456 |
# of filed Patents : 68 Total Citations : 456 | |||
KAWAMURA, SHOGO | Kanagawa, JP | 56 | 628 |
# of filed Patents : 56 Total Citations : 628 | |||
KIMURA, SATOSHI | Kanagawa, JP | 235 | 2188 |
# of filed Patents : 235 Total Citations : 2188 | |||
OKUSHIMA, SHINGO | Kanagawa, JP | 114 | 1215 |
# of filed Patents : 114 Total Citations : 1215 |
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Patent Citation Ranking
- 0 Citation Count
- B41J Class
- 0 % this patent is cited more than
- < 1 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Oct 10, 2028 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 10, 2032 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 10, 2036 |
Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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