PATENT CLAIM ANALYSIS

Application Number: 16143979
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-01
Patent Classification: ["430", "096000"]

Abstract:
The present invention relates to an electrophotographic photoreceptor for positive charging, the photoreceptor comprising: a conductive support; and a single-layer type photosensitive layer disposed on the conductive support, the single-layer type photosensitive layer containing a binder resin, a compound (1) having hole transporting ability, and a compound (2) having electron-transporting ability, wherein the level Ah of a compound having a highest energy level of HOMO in the compound (1), the level BI of a compound having a lowest energy level of LUMO in the compound (2), and an energy level Ch of HOMO of another compound C which has a molecular weight of 500 or less and is contained in the photosensitive layer satisfy specific equations.

Claim (Index 1):
An electrophotographic photoreceptor for positive charging, the photoreceptor comprising:\n a conductive support; and a single-layer type photosensitive layer disposed on the conductive support, the single-layer type photosensitive layer at least containing a binder resin, a compound having hole transporting ability, and a compound having electron-transporting ability, wherein the binder resin contains a polyarylate resin, and when in density function calculation B3LYP/6-31G (d, p),\n designating a compound having hole transporting ability with a highest energy level of HOMO in the compound having hole transporting ability as a compound A, and setting the energy level of HOMO of the compound A to Ah, \n designating a compound having electron-transporting ability with a lowest energy level of LUMO in the compound having electron-transporting ability as a compound B, and setting the energy level of LUMO of the compound B to Bl, and \n designating a compound which has a molecular weight of 500 less and is contained other than the compound A and the compound B in the single-layer type photosensitive layer as a compound C, and setting an energy level of HOMO of the compound C to Ch, \n the following Equations (1a), (2a), and (3a) are satisfied:\n Ch\u2264\u2212 4.69 (eV)\u2003\u2003(1a) \n Ah\u2212Ch\u2265 0.10 (eV)\u2003\u2003(2a) \n Bl\u2212Ch\u2265 1.18 (eV)\u2003\u2003(3a).

Metadata:
- Claim Count in Document: 9.0
- Percentile: 97.0
- Lexical Diversity: 2.0303
- Patent Class: 430.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12664063', '14452852', '12666651', '14609543', '12160052']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7446178721677088
- 35 USC 102 Novelty (BERT): 0.507633976968904
- Combined Prediction Score: 0.7209194826478283
- Mean Citation Score: 257.728568
- Max Citation Score: 280.1459
- Similarity Product: 206.1686643462777

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

Dataset: test