PATENT CLAIM ANALYSIS

Application Number: 15914002
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["384", "125000"]

Abstract:
Provided is a partially-annular sliding member including a sliding layer including fibrous particles having an average particle size of 5-25 μm dispersed in a synthetic resin at a volume ratio of 10-35% of the sliding layer. The particles having a major axis length ≤20 μm are included at a volume ratio of ≥10% to total particles. A sliding surface side area is defined from the sliding surface and has a thickness of 25% of a sliding layer thickness T, where the fibrous particles having a major axis length of ≥20 μm have a dispersion index of 1.1-6. An interface side area is defined from the interface and has a thickness of 25% of T, where the dispersion index is 1.1-6. An intermediate area is defined between the both areas, where the dispersion index is 0.1 to less than 1.

Claim (Index 1):
A sliding member for a thrust bearing, comprising:\n a back metal layer; and a sliding layer on the back metal layer, wherein the sliding member has a partially annular shape, wherein the sliding layer comprises synthetic resin and fibrous particles dispersed in the synthetic resin at a volume ratio of 10 to 35% of a volume of the sliding layer, and the fibrous particles having an average particle size of 5 to 25 \u03bcm, wherein the fibrous particles having a major axis length of not shorter than 20 \u03bcm are included at a volume ratio of not less than 10% in relation to a volume of total fibrous particles, when viewed in an axial cross-sectional structure parallel to a central axis of the sliding member and perpendicular to a sliding surface of the sliding layer, and wherein, when a sliding surface side area is defined as an area from the sliding surface toward an interface between the sliding surface and the back metal layer in the axial cross-sectional structure, the sliding surface side area having a thickness of 25% of a sliding layer thickness; an interface side area is defined as an area from the interface toward the sliding surface, the interface side area having a thickness of 25% of the sliding layer thickness; and an intermediate area is defined as an area between the sliding surface side area and the interface side area, (i) in the sliding surface side area, the fibrous particles having a major axis length of not shorter than 20 \u03bcm have a dispersion index of 1.1 to 6, (ii) in the intermediate area, the fibrous particles having a major axis length of not shorter than 20 \u03bcm have the dispersion index of 0.1 to less than 1, and (iii) in the interface side area, the fibrous particles having a major axis length of not shorter than 20 \u03bcm have the dispersion index of 1.1 to 6, where the dispersion index is defined as an average of ratios X 1 /Y 1  of the fibrous particles, X 1  being a length of a fibrous particle parallel to the sliding surface in the axial cross-sectional structure, and Y 1  being a length of the fibrous particle perpendicular to the sliding surface in the circumferential cross-sectional structure.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 90.0
- Lexical Diversity: 2.25373
- Patent Class: 384.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15704197', '14958203', '15492194', '14002443', '14388738']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7368286176629463
- 35 USC 102 Novelty (BERT): 0.4935427081051833
- Combined Prediction Score: 0.71250002670717
- Mean Citation Score: 180.030544
- Max Citation Score: 201.36931
- Similarity Product: 138.2533927414608

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

Dataset: test