PATENT CLAIM ANALYSIS

Application Number: 16084466
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-03
Patent Classification: ["430", "111330"]

Abstract:
An object of the present invention is to provide a ferrite carrier core material for an electrophotographic developer having desired resistance properties and charging properties with small environmental variation of resistivity and charge amount while maintaining the advantages of ferrite carriers, a ferrite carrier for an electrophotographic developer, an electrophotographic developer using the ferrite carrier, and a method for manufacturing the ferrite carrier core material for an electrophotographic developer. In order to solve the problem, a ferrite carrier core material comprising ferrite particles containing 15 mass % or more and 25 mass % or less of Mn, 0.5 mass % or more and 5.0 mass % or less of Mg, 0.05 mass % or more and 4.0 mass % of Sr, and 45 mass % or more and 55 mass % or less of Fe, with Zr localized in the surface thereof is used.

Claim (Index 4):
The ferrite carrier core material for an electrophotographic developer according to  claim 1 , wherein the surface of a ferrite particle is coated with ZrO 2 , at a ZrO 2  coating amount of 0.2 mass % or more and 5.0 mass % or less relative to 100 parts by mass of the ferrite particle.

Metadata:
- Claim Count in Document: 30.0
- Percentile: 97.0
- Lexical Diversity: 2.2
- Patent Class: 430.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12035673', '13823250', '14785676', '10774045', '13019485']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7677967559793009
- 35 USC 102 Novelty (BERT): 0.5017026072076227
- Combined Prediction Score: 0.741187341102133
- Mean Citation Score: 264.180206
- Max Citation Score: 278.6127
- Similarity Product: 235.0182370501936

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