PATENT CLAIM ANALYSIS

Application Number: 15771763
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-12
Patent Classification: ["384", "571000"]

Abstract:
There is prepared a formed body constituted of steel and having an outer circumferential surface having an annular groove having a bottom surface to serve as a raceway surface of the bearing ring. In the step of forming a heated region, the formed body is induction heated to form a heated region including the bottom surface of the groove and heated to a temperature of at least an A 1  point. In the cooling step, the whole of the heated region is simultaneously cooled to a temperature of not more than an M s  point. The step of retaining the formed body in a state in which heating is stopped is performed after the step of forming a heated region before the step of cooling. In the step of retaining, dispersion in temperature in the heated region in the circumferential direction is suppressed to not more than 20° C.

Claim (Index 22):
A double row tapered roller bearing comprising:\n an outer ring serving as a bearing ring having an annular shape; an inner ring disposed on an inner circumferential side of the outer ring and serving as a bearing ring having an annular shape, the inner ring having an outer circumferential surface facing the outer ring and having two rows of grooves having a bottom surface serving as a raceway surface; and tapered rollers disposed in the grooves in contact with the raceway surface of the inner ring and being also in contact with the outer ring, at the outer circumferential surface of the inner ring, a region adjacent to the groove including a hardened region extending from an inner peripheral surface of the groove to the region adjacent to the groove, and an unhardened region located at a position farther from the groove than the hardened region and being smaller in hardness than the hardened region, the inner ring being constituted of steel containing at least 0.43 mass % and not more than 0.65 mass % of carbon, at least 0.15 mass % and not more than 0.35 mass % of silicon, at least 0.60 mass % and not more than 1.10 mass % of manganese, at least 0.30 mass % and not more than 1.20 mass % of chromium, and at least 0.15 mass % and not more than 0.75 mass % of molybdenum with the rest consisting of iron and an impurity.

Metadata:
- Claim Count in Document: 63.0
- Percentile: 91.0
- Lexical Diversity: 2.41538
- Patent Class: 384.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15771723', '12394117', '12115730', '14354816', '14136333']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8085572873373412
- 35 USC 102 Novelty (BERT): 0.5245310372004894
- Combined Prediction Score: 0.780154662323656
- Mean Citation Score: 270.619386
- Max Citation Score: 360.77277
- Similarity Product: 355.6541719703025

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