PATENT CLAIM ANALYSIS

Application Number: 16260255
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-08
Patent Classification: ["430", "073000"]

Abstract:
An electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer of a single layer. The photosensitive layer contains a charge generating material, a hole transport material, an electron transport material, and a binder resin. An optical response time is at least 0.05 milliseconds and no greater than 0.85 milliseconds. The binder resin includes a polycarbonate resin including a repeating unit represented by general formula (1) shown below and a repeating unit represented by general formula (2) shown below.

Claim (Index 1):
An electrophotographic photosensitive member comprising a conductive substrate and a photosensitive layer of a single layer, wherein\n the photosensitive layer contains a charge generating material, a hole transport material, an electron transport material, and a binder resin, an optical response time is at least 0.05 milliseconds and no greater than 0.85 milliseconds, the optical response time is a time from irradiation to decay, the irradiation being a time of a start of irradiation of a surface of the photosensitive layer charged to +800 V with pulse light having a wavelength of 780 nm, the decay being a time when a surface potential of the photosensitive layer decays from +800 V to +400 V, an optical intensity of the pulse light is set so that the surface potential of the photosensitive layer becomes +200 V from +800 V when 400 milliseconds elapse after the irradiation of the surface of the photosensitive layer charged to +800 V with the pulse light, and the binder resin includes a polycarbonate resin including a repeating unit represented by a general formula (1) shown below and a repeating unit represented by a general formula (2) shown below, where in the general formula (1), R 1 , R 2 , R 3 , and R 4  each represent, independently of one another, a hydrogen atom, an alkyl group having a carbon number of at least 1 and no greater than 3 and optionally substituted by a halogen atom, or an aryl group having a carbon number of at least 6 and no greater than 14, and R 3  and R 4  may be bonded together to form a ring of a divalent group represented by a general formula (X) shown below, in the general formula (2), R 5  and R 6  each represent, independently of each other, a hydrogen atom or an alkyl group having a carbon number of at least 1 and no greater than 3 and optionally substituted by a substituent, and W represents a single bond, \u2014O\u2014, or \u2014CO\u2014, where in the general formula (X), t represents an integer of at least 1 and no greater than 3, and * represents a bond.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 99.0
- Lexical Diversity: 1.78431
- Patent Class: 430.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16258790', '16472178', '15247373', '15492914', '15899400']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7734822189637912
- 35 USC 102 Novelty (BERT): 0.4956730851102586
- Combined Prediction Score: 0.745701305578438
- Mean Citation Score: 259.741044
- Max Citation Score: 304.82043
- Similarity Product: 298.4695198759747

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

Dataset: test