PATENT CLAIM ANALYSIS

Application Number: 15772465
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["419", "056000"]

Abstract:
An improvement of coercive force of Nd—Fe—B base sintered magnet can be realized while suppressing a decrease in remanent magnetic flux density to the minimum using a method for modifying grain boundary which comprises heat-treating an Nd—Fe—B base magnet with a specific alloy disposed on its surface, the alloy having the following Formula 1: R x A y B z   (1) wherein R represents at least one rare earth element including Sc and Y, A represents Ca or Li, B represents an unavoidable impurity, and 2≤x≤99, 1≤y<x, and 0≤z<y.

Claim (Index 1):
A method for modifying grain boundary of an Nd\u2014Fe\u2014B base magnet, which comprises heat-treating an Nd\u2014Fe\u2014B base magnet with an alloy powder represented by the following formula (1) disposed on the surface thereof in vacuum or in an inert gas at a temperature lower than a sintering temperature of the magnet;\n R x A y B z \u2003\u2003(1) wherein R represents at least one rare earth element including Sc and Y, A represents Ca or Li, B represents an unavoidable impurity, and 2\u2264x\u226499, 1\u2264y<x, and 0\u2264z<y.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 91.0
- Lexical Diversity: 1.33766
- Patent Class: 419.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11793272', '12494902', '11941127', '14424735', '15782875']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7732704501662272
- 35 USC 102 Novelty (BERT): 0.511710917767851
- Combined Prediction Score: 0.7471144969263896
- Mean Citation Score: 302.03088
- Max Citation Score: 312.0239
- Similarity Product: 257.00382365583783

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