Patent US3810395A successfully refreshed from Google Patents.
Patent US4630078A successfully refreshed from Google Patents.
US4630078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid recording head
Assignee: Canon Inc
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Filing: 1985-03-18
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Granted: 1986-12-16
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Expires: 2005-03-18
Abstract
Abstract A liquid ejection recording head includes orifices provided to discharge liquid and form flying droplets, an energy generating member for generating energy utilized to form the droplets, and electrical contacts provided on the same side as a surface in which the orifices are provided for inputting an electrical signal to the energy generating member. The electrical contacts are provided above the orifices during the use of the head.
Inventors
- 👤 Kenjiro Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:07
CPC Classifications
B; B41; B41J; B41J25/00; B41J25/34
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
101 words
A liquid ejection recording head adapted to be mounted to a liquid ejection recording apparatus, said head comprising: orifices for discharging liquid as flying droplets; an energy generating member for generating energy utilized to form said droplets; electrical contacts, disposed on the same side of said head as said orifices, for inputting an electrical signal to said energy generating member; and mounting means for mounting said head to said liquid ejection recording apparatus, said mounting means being arranged such that all of said electrical contacts are disposed above said orifices when said head is mounted on said liquid ejection recording apparatus.
Claim 2
Dependent Claim
101 words
A liquid ejection recording head adapted to be mounted to a liquid ejection recording apparatus, said head comprising: orifices for discharging liquid as flying droplets; an energy generating member for generating energy utilized to form said droplets; electrical contacts, disposed on the same side of said head as said orifices, for inputting an electrical signal to said energy generating member; and mounting means for mounting said head to said liquid ejection recording apparatus, said mounting means being arranged such that all of said electrical contacts are disposed above said orifices when said head is mounted on said liquid ejection recording apparatus.
Claim 3
Dependent Claim
19 words
A liquid ejection recording head according to claim 1, further comprising a liquid reservoir for containing said liquid therein.
Claim 4
Dependent Claim
21 words
A liquid ejection recording head according to claim 1, wherein said orifices and said electrical contacts are on the same surface.
Claim 5
Dependent Claim
22 words
A liquid ejection recording head according to claim 1, wherein the vicinity of said electrical contacts is subjected to a lyophobic treatment.
Claim 6
Dependent Claim
99 words
A liquid ejection recording apparatus comprising: a liquid ejection recording head mounted thereon and having orifices for discharging liquid as flying droplets; an energy generating member for generating energy utilized to form said droplets; and electrical contacts, disposed on the same side of said liquid ejection recording head as said orifices, for inputting an electrical signal to said energy generating member, said electrical contacts being electrically connected to electrical contacts on the apparatus side and all of said electrical contacts being disposed above said orifices when said liquid ejection recording head is mounted on said liquid ejection recording apparatus.
Claim 7
Dependent Claim
99 words
A liquid ejection recording apparatus comprising: a liquid ejection recording head mounted thereon and having orifices for discharging liquid as flying droplets; an energy generating member for generating energy utilized to form said droplets; and electrical contacts, disposed on the same side of said liquid ejection recording head as said orifices, for inputting an electrical signal to said energy generating member, said electrical contacts being electrically connected to electrical contacts on the apparatus side and all of said electrical contacts being disposed above said orifices when said liquid ejection recording head is mounted on said liquid ejection recording apparatus.
Claim 8
Dependent Claim
24 words
A liquid ejection recording apparatus according to claim 5, wherein said liquid ejection recording head has a liquid reservoir for containing said liquid therein.
Claim 9
Dependent Claim
21 words
A liquid ejection recording apparatus according to claim 5, wherein said orifices and said electrical contacts are on the same surface.
Claim 10
Dependent Claim
22 words
A liquid ejection recording apparatus according to claim 5, wherein the vicinity of said electrical contacts is subjected to a lyophobic treatment.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-15 | 1990-06-16 | 1990-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-15 | 1994-06-16 | 1994-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-15 | 1998-06-16 | 1998-12-16 | $7700.00 | Window Closed / Lapsed |