US4806956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording electrode for ink dot printer
Assignee: Toshiba TEC Corp
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Filing: 1988-04-08
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Granted: 1989-02-21
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Expires: 2008-04-08
Abstract
Abstract An ink dot printer wherein an ink supply member having a recording electrode fed with ink at the fore end is disposed opposite to an opposed electrode through a recording medium and wherein a picture is drawn with the ink splattered from the fore end of the recording electrode toward the recording medium by generating a potential difference between the opposed electrode and the recording electrode is such that the recording electrode is composed of a conductive material formed on an ink supply member by thin-film technique whereby the ink supply member has both an insulation property and an ink-impregnation property.
Inventors
- 👤 Hisashi Nishikawa
- 👤 Mitsuharu Endo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:07
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/07; B41J27/00; B41J2/015; B41J2/04; B41J2/06; G; G01; G01D; G01D15/00; G01D15/16; B41J2002/061
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
101 words
An ink dot printer wherein a recording electrode fed with ink at the fore end thereof is disposed opposite to an opposed electrode through a recording medium, and a picture is drawn with the ink sputtered from the fore end of said recording electrode toward the recording medium by generating a potential difference between said opposed electrode and said recording electrode, said ink dot printer characterized in that said recording electrode is composed of a conductive material formed on an ink supply member by a thin-film technique; wherein said ink supply member has both an insulation property and an ink-impregnation property.
Claim 2
Dependent Claim
101 words
An ink dot printer wherein a recording electrode fed with ink at the fore end thereof is disposed opposite to an opposed electrode through a recording medium, and a picture is drawn with the ink sputtered from the fore end of said recording electrode toward the recording medium by generating a potential difference between said opposed electrode and said recording electrode, said ink dot printer characterized in that said recording electrode is composed of a conductive material formed on an ink supply member by a thin-film technique; wherein said ink supply member has both an insulation property and an ink-impregnation property.
Claim 3
Dependent Claim
44 words
The ink dot printer as defined in claim 1, wherein said recording electrode is fitted into a groove formed in said ink supply member, so that the joint surface of said recording electrode and said ink supply member is shaped into a smooth plane.
Claim 4
Dependent Claim
31 words
The ink dot printer as defined in claim 1, wherein a protuberance is formed in an ink supply member at a position corresponding to the fore end of said recording electrode.
Claim 5
Dependent Claim
48 words
The ink dot printer as defined in claim 1, wherein said recording electrode projects toward said opposed electrode beyond an ink supply member in such a manner that the length of such projection becomes substantially equal to the wetting height of ink with respect to said recording electrode.
Claim 6
Dependent Claim
39 words
The ink dot printer as defined in claim 1, wherein said ink supply member is shaped into a needle, and said recording electrode is composed of a conductive thin film formed on the surface of said ink supply member.
Claim 7
Dependent Claim
23 words
The ink dot printer as defined in claim 5, wherein a plurality of such recording electrodes are arrayed in parallel with one another.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-21 | 1992-08-22 | 1993-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-21 | 1996-08-22 | 1997-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-21 | 2000-08-22 | 2001-02-21 | $7700.00 | Window Closed / Lapsed |