Patents
US 12429774 B2: Lithographic printing plate precursors, methods of using and manufacture
- Granted
- 2025-09-30
- Filed
- 2022-08-04 application 17880877
- Type
- Utility · 21 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
On-press developable, negative-working infrared radiation-sensitive lithographic printing plate precursors have an aluminum-containing substrate having at least inner and outer aluminum oxide layers. A hydrophilic layer is present on the outer aluminum oxide layer at 0.0002-0.1 g/m2 and contains a phosphorus-containing compound represented by Formula (I) at a coverage of 50-300 mg/m2. A hydrophilic polymer can also be present at a lower coverage than that of the phosphorus-containing compound. These precursors have an on-press developable, negative-working infrared radiation-sensitive imageable layer having at least a free radically polymerizable component; an initiator composition that provides free radicals upon exposure to imaging infrared radiation; an infrared radiation absorber having an anionic chromophore; and optionally a polymeric binder that is different from all other components. Such precursors can be imaged and on-press developed to provide lithographic printing plates, and they can be readily manufactured using a particular sequence of steps including multiple anodization steps.
Source: PVGPATDIS, file of 2026-04-10 (ipg250930.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| EASTMAN KODAK COMPANY 2,417 patents | US company or organization | Rochester, NY | EASTMAN KODAK COMPANY Federal lobbying client EXACT high confidence: identical full name and state EASTMAN KODAK CO SEC filer FUZZY low confidence: same name (legal endings aside), one of each nationally | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Yasushi Miyamoto | Shibukawa, JP | 7 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B41C | Processes for the manufacture or reproduction of printing surfaces | B41C1/1008 | PVGPATDIS, file of 2026-04-10 |
| G03F | Photomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices; materials therefor; originals therefor; apparatus specially adapted therefor; | G03F7/11 | PVGPATDIS, file of 2026-04-10 |
| B41N | Printing plates or foils ; materials for surfaces used in printing machines for printing, inking, damping, or the like; preparing such surfaces for use and conserving them | B41N3/034 | PVGPATDIS, file of 2026-04-10 |
| C09B | Organic dyes or closely-related compounds for producing dyes ; , e.g. pigments; mordants; lakes | C09B23/0066 | PVGPATDIS, file of 2026-04-10 |
| C25D | Processes for the electrolytic or electrophoretic production of coatings; electroforming; apparatus therefor | C25D11/08 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2022-08-16 | Security interest Security interest Security interest | EASTMAN KODAK COMPANY signed 2022-08-09 EASTMAN KODAK INTERNATIONAL CAPITAL COMPANY, INC. signed 2022-08-09 FAR EAST DEVELOPMENT LTD. signed 2022-08-09 KODAK (NEAR EAST) INC. signed 2022-08-09 KODAK AMERICAS LTD. signed 2022-08-09 KODAK PHILIPPINES LTD. signed 2022-08-09 | BANK OF AMERICA, N.A., AS AGENT BOSTON, MA | 60816/215 | ECORSEXC, file of 2026-09-25 |
| 2022-08-04 | Assignment Assignment of assignor's interest | MIYAMOTO, YASUSHI signed 2022-07-20 | EASTMAN KODAK COMPANY ROCHESTER, NY | 61072/188 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.