PATENT CLAIM ANALYSIS

Application Number: 15961756
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["430", "059400"]

Abstract:
An electrophotographic photosensitive member includes a support member, a charge generating layer containing a phthalocyanine pigment as a charge generating material, a charge transport layer containing a charge transporting material in this order. The charge generating layer has a thickness of less than 200 nm, and the phthalocyanine pigment includes phthalocyanine crystalline particles having a particle size distribution and satisfies a requirement that the volume average of the products of Φi and Ψi is 0.31 or more.

Claim (Index 1):
An electrophotographic photosensitive member comprising in this order:\n a support member; a charge generating layer having a thickness of less than 200 nm and containing a phthalocyanine pigment as a charge generating material; and a charge transport layer containing a charge transporting material, wherein the phthalocyanine pigment includes phthalocyanine crystalline particles having a particle size distribution and satisfies a requirement that the volume average of the products of \u03a6i represented by equation (E1) and \u03a8i represented by equation (E2) is 0.31 or more: \u03a6 i = 1 - 0.425 kR i \ue89e \u2211 n = 1 \u221e \ue89e \ue89e [ 1 - \u0393 \ue8a0 ( n , kR i / 0.425 ) \u0393 \ue8a0 ( n ) ] \ue8a0 [ 1 - \u0393 \ue8a0 ( n , 15.7 / ( kR i ) ) \u0393 \ue8a0 ( n ) ] ( E1 ) \u03a8 i = { 1 - 10 - \u03b1 \ue89e \ue89e d ( Pd / R i > 1 ) ( Pd / R i ) \ue89e ( 1 - 10 - \u03b1 \ue89e \ue89e R i / P ) ( Pd / R i \u2264 1 ) ( E2 ) wherein k is a parameter representing the ratio r/R of the crystallite correlation length r of the phthalocyanine pigment to the volume average diameter R of the crystalline particles in the particle size distribution of the phthalocyanine pigment, and Ri represents the respective diameters of the crystalline particles in the particle size distribution, and wherein \u03b1 represents the absorption coefficient of the charge generating layer, d represents the thickness of the charge generating layer, and P represents the ratio of the volume of the charge generating material to the total volume of the charge generating layer.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 91.0
- Lexical Diversity: 1.64
- Patent Class: 430.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['10388811', '12301109', '14097216', '14167848', '12538378']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7750789409713124
- 35 USC 102 Novelty (BERT): 0.5027528200950003
- Combined Prediction Score: 0.7478463288836812
- Mean Citation Score: 249.618848
- Max Citation Score: 256.05667
- Similarity Product: 162.06482907707095

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