PATENT CLAIM ANALYSIS

Application Number: 16020101
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["430", "078000"]

Abstract:
An electrophotographic photoreceptor includes a conductive substrate; and a photosensitive layer arranged on the conductive substrate and containing, as a charge generating material, any one material selected from the group consisting of titanyl phthalocyanines, metal-free phthalocyanines, chlorogallium phthalocyanines and hydroxygallium phthalocyanines; and, as an electron transporting material, a naphthalene tetracarboxylic acid diimide compound represented by Formula (1) below, where R 1  and R 2  each represent a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an alkylene group, an alkoxy group, an alkyl ester group, a phenyl group optionally having a substituent, a naphthyl group optionally having a substituent, or a halogen element; and R 1  and R 2  are optionally the same or different: The photoreceptor realizes a stable print density even in a low-temperature environment by suppressing a reduction in print density that is caused by potential fluctuation of the photoreceptor in the low-temperature environment.

Claim (Index 5):
The electrophotographic photoreceptor according to  claim 2 , wherein the hole transporting material of the charge transport layer comprises any one compound represented by Formulae (2) to (5) below, and the resin binder comprises a polycarbonate resin having a repeating unit represented by Formula (6) below, and\n wherein the charge generating material of the charge generation layer comprises a titanyl phthalocyanine, the hole transporting material comprises any one compound represented by Formulae (2) to (5) below, the electron transporting material comprises any one compound represented by Formulae (E-2), (E-5) and (E-11) below, and the resin binder comprises a polycarbonate resin having a repeating unit represented by Formula (6) below: where Ra and Rd each represent a hydrogen atom, an optionally branched alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a phenyl group optionally having a substituent, or a styryl group optionally having a substituent; Rb and Rc each represent a hydrogen atom, an optionally branched alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms; Re and Rf each represent a hydrogen atom, an optionally branched alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 3 carbon atoms, a phenyl group optionally having a substituent, a styryl group optionally having a substituent, or a 4-phenyl butadiene group optionally having a substituent; x, y and p each represent an integer of 0 to 5; z represents an integer of 0 to 4; l represents an integer of 0 to 2; and m represents an integer of 1 to 4; where R 3  and R 4  each represent a hydrogen atom, a methyl group, or an ethyl group; X represents an oxygen atom, a sulfur atom, or \u2014CR 5 R 6 ; R 5  and R 6  each represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a phenyl group optionally having a substituent, or R 5  and R 6  are optionally cyclically bound to form a cycloalkyl group having 4 to 6 carbon atoms, the cycloalkyl group optionally has a substituent; and R 5  and R 6  are optionally the same or different; and

Metadata:
- Claim Count in Document: 10.0
- Percentile: 94.0
- Lexical Diversity: 1.87912
- Patent Class: 430.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11220401', '15279874', '10357491', '14609543', '10687667']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8148020586911121
- 35 USC 102 Novelty (BERT): 0.5166380898771366
- Combined Prediction Score: 0.7849856618097145
- Mean Citation Score: 315.16264199999995
- Max Citation Score: 322.39877
- Similarity Product: 221.30187443466664

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