PATENT CLAIM ANALYSIS

Application Number: 16060388
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["148", "318000"]

Abstract:
The present invention relates to a bearing shaft provided with an outer peripheral surface that includes a raceway surface (side surface) on which a rolling element rolls. The bearing shaft is made of steel containing carbon of 0.7% or more. The raceway surface is formed with a nitrogen-enriched layer. The absolute value of compressive residual stress in the surface of the nitrogen-enriched layer (i.e., the surface of a hardened layer which is formed on the side surface of the bearing shaft by shot peening) is 600 MPa or more and 1700 MPa or less. Thereby, it is possible for the present invention to prolong the operation life of a bearing.

Claim (Index 7):
The bearing according to  claim 6 , wherein the surface of the rolling element is foil led with a nitrogen-enriched layer.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 94.0
- Lexical Diversity: 1.90625
- Patent Class: 148.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11501816', '11628050', '12744665', '13238889', '13259680']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7749170559198427
- 35 USC 102 Novelty (BERT): 0.5156521140547711
- Combined Prediction Score: 0.7489905617333356
- Mean Citation Score: 215.014396
- Max Citation Score: 232.36026
- Similarity Product: 163.0882801818931

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

Dataset: test