US5843599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Erasable ceramic bar-code
Assignee: Eastman Kodak Co
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Filing: 1997-07-29
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Granted: 1998-12-01
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Expires: 2017-07-29
Abstract
Abstract A printing member that can be imaged directly using a laser and is image erasable, the printing member includes a writing surface composed of a non-porous zirconia ceramic ZrO 2 that is alloyed with a secondary oxide selected from the group consisting of MgO, CaO, Y 2 O 3 , Sc 2 O 3 , a rare earth oxide, and combinations thereof, the zirconia alloy being a non-porous ceramic and having a density of from about 5.6 to about 6.2 g/cm 3 ; and an erasable bar-code printed onto the writing surface.
Inventors
- 👤 Gustavo R. Paz-Pujalt
- 👤 Dilip K. Chatterjee
- 👤 Syamal K. Ghosh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:55
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/262; Y; Y10; Y10S; Y10S430/00; Y10S430/146
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
94 words
A printing member that can be imaged directly using a laser and is image erasable, the printing member comprising: a) a writing surface composed of a non-porous zirconia ceramic ZrO 2 that is alloyed with a secondary oxide selected from the group consisting of MgO, CaO, Y 2 O 3 , Sc 2 O 3 , a rare earth oxide, and combinations thereof, the zirconia alloy being a non-porous ceramic and having a density of from about 5.6 to about 6.2 g/cm 3 ; and b) an erasable bar-code printed onto the writing surface.
Claim 2
Dependent Claim
94 words
A printing member that can be imaged directly using a laser and is image erasable, the printing member comprising: a) a writing surface composed of a non-porous zirconia ceramic ZrO 2 that is alloyed with a secondary oxide selected from the group consisting of MgO, CaO, Y 2 O 3 , Sc 2 O 3 , a rare earth oxide, and combinations thereof, the zirconia alloy being a non-porous ceramic and having a density of from about 5.6 to about 6.2 g/cm 3 ; and b) an erasable bar-code printed onto the writing surface.
Claim 3
Dependent Claim
49 words
The printing member of claim 1 wherein the zirconia alloy ceramic further is formed as a composite with alumina such that the zirconia alumina composite has a density of from about 5.0 to about 6.05 g/cm 3 , and from about 0.1 to about 50% by weight of alumina.
Claim 4
Dependent Claim
12 words
The printing member of claim 1 wherein the bar-code is two dimensional.
Claim 5
Dependent Claim
111 words
A printing member that can be imaged directly using a laser and is image erasable, the printing member, comprising: a) a substrate having an insert receiving cavity; b) a printing insert formed in the cavity of the substrate and having a writing surface composed of a non-porous zirconia ceramic ZrO 2 that is alloyed with a secondary oxide selected from the group consisting of MgO, CaO, Y 2 O 3 , Sc 2 O 3 , a rare earth oxide, and combinations thereof, the non-porous zirconia alloy ceramic having a density of from about 5.6 to about 6.2 g/cm 3 ; and c) an erasable bar-code printed onto the writing surface.
Claim 6
Dependent Claim
111 words
A printing member that can be imaged directly using a laser and is image erasable, the printing member, comprising: a) a substrate having an insert receiving cavity; b) a printing insert formed in the cavity of the substrate and having a writing surface composed of a non-porous zirconia ceramic ZrO 2 that is alloyed with a secondary oxide selected from the group consisting of MgO, CaO, Y 2 O 3 , Sc 2 O 3 , a rare earth oxide, and combinations thereof, the non-porous zirconia alloy ceramic having a density of from about 5.6 to about 6.2 g/cm 3 ; and c) an erasable bar-code printed onto the writing surface.
Claim 7
Dependent Claim
49 words
The printing member of claim 4 wherein the zirconia alloy ceramic further is formed as a composite with alumina such that the zirconia alumina composite has a density of from about 5.0 to about 6.05 g/cm 3 , and from about 0.1 to about 50%, by weight of alumina.
Claim 8
Dependent Claim
15 words
The printing member of claim 4 wherein the substrate is formed from a polymeric material.
Claim 9
Dependent Claim
12 words
The printing member of claim 4 wherein the bar-code is two dimensional.
References Cited (Backward Citations)
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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) | 2001-11-30 | 2002-06-01 | 2002-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-30 | 2006-06-01 | 2006-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-30 | 2010-06-01 | 2010-12-01 | $7700.00 | Window Closed / Lapsed |