PATENT CLAIM ANALYSIS

Application Number: 15941191
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-01
Patent Classification: ["399", "279000"]

Abstract:
A developing device includes a housing having an opening in a wall thereof, a hollow developing roller, a magnetic pole structure disposed within the developing roller and at least a portion thereof facing the opening in the housing, a gap forming member located within the housing at a location downstream the opening in the housing and forming a first gap with the developing roller and forming a second gap with the housing, and a blocking member arranged in the first gap. The housing and the gap forming member form a first opening and a second opening spaced from the first opening across the second gap between the gap forming member and the housing, such that the first opening is farther from the opening in the wall of the housing than the second opening, and the width of the first opening is larger than that of the second opening.

Claim (Index 10):
A developing device, comprising:\n a housing having an enclosure wall and an opening in the enclosure wall thereof; a developing roller, having a hollow interior portion and an axis of rotation, located within the housing adjacent to the opening in the enclosure wall, such that a portion of the circumference thereof is directly exposed to the opening in the enclosure wall surface of the housing, the developing roller configured to rotate in a rotation direction about the axis of rotation thereof; a magnetic pole structure disposed within the hollow interior portion of the roller, including:\n at least a portion of a first pole thereof of a first polarity facing the opening in the wall of the housing; \n a second pole thereof of the first polarity disposed within the developer roller at a location inwardly of the housing relative to, and spaced from, the first pole; and \n a third pole, of the second magnetic polarity, \n disposed between the first and second poles, wherein the developing roller is configured to carry a developer on an outer surface thereof using the magnetic field of the magnetic pole structure to selectively attract the developer to the outer surface thereof; and an air recirculation path located within the housing at a location downstream, in the rotation direction of the developing roller, of the opening in the enclosure wall, and configured to direct a flow of air in a direction inwardly of the housing at a first gap between the developing roller and the enclosure wall of the housing.

Metadata:
- Claim Count in Document: 10.0
- Percentile: 90.0
- Lexical Diversity: 3.0
- Patent Class: 399.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['10617399', '14624422', '15585526', '12872080', '13800095']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7641058676336423
- 35 USC 102 Novelty (BERT): 0.4676989349561046
- Combined Prediction Score: 0.7344651743658885
- Mean Citation Score: 167.512442
- Max Citation Score: 172.91078000000005
- Similarity Product: 131.19688253811242

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

Dataset: test