PATENT CLAIM ANALYSIS

Application Number: 15926616
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["355", "053000"]

Abstract:
A method and apparatus to expose photosensitive printing plates with a predetermined radiation density from the main side (top) and a predetermined radiation density from the back side (bottom). The method comprises executing the main exposure with a time delay after the back exposure. The time delay between back exposure and main exposure is optimized to create smaller stable single dot elements on the photosensitive printing plate after processing and smaller single element dot sizes printed on the print substrate. The plate floor may be adjusted by performing a back-side-only exposure prior to executing the combined back and main exposure with the time delay.

Claim (Index 1):
An apparatus for preparing a printing plate comprising a photosensitive polymer activated by exposure to radiation, the printing plate having a non-printing back side and a printing front side with a mask for defining an image to be printed, the apparatus comprising:\n a plurality of radiation sources, comprising at least one front source positioned to expose the front side of the plate to radiation, and at least one back source positioned to expose the back side of the plate to radiation, the at least one front source and the at least one back source each having an irradiation field covering an area at least coextensive with a width of the plate, the irradiation field of the linear front source and the irradiation field of the linear back source spaced apart from one another by a lateral distance along the length of the plate; a holder configured to receive the printing plate in a position to receive incident radiation from the plurality of radiation sources; a controller connected to the plurality of radiation sources; means for causing relative movement between the printing plate and the at least one front source and the at least one back source; the apparatus configured to, for each specific coordinate corresponding to a cross-sectional portion of the plate, first (a) commence irradiating the back side of the plate, then (b) automatically impose a precisely defined and repeatable time delay, and then (c) immediately after the time delay elapses, commence irradiating the front side of the plate, without exposing any specific coordinate to front side and back side irradiation simultaneously, by providing relative movement between the plate and the irradiation fields from the at least one front source and the at least one back source at a velocity sufficient to cause the defined time delay over the lateral distance.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 90.0
- Lexical Diversity: 1.96491
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14244293', '13493004', '13527936', '15088062', '12909626']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6572462964978364
- 35 USC 102 Novelty (BERT): 0.4642379915431417
- Combined Prediction Score: 0.6379454660023669
- Mean Citation Score: 146.50893000000005
- Max Citation Score: 150.30469
- Similarity Product: 109.00824435225128

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test