PATENT CLAIM ANALYSIS

Application Number: 15761573
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-11
Patent Classification: ["117", "015000"]

Abstract:
The present invention is a method for producing a single crystal, the method in which, after a charging process, a crucible position setting process including a step of placing a lower end of a conical valve below a lower end of a purge tube, a step of performing a movement in such a way that the conical valve and the crucible get relatively closer to each other while measuring changes in the weight of the conical valve, a step of detecting contact between the lower end of the conical valve and an upper end of a raw material based on the rate of change in the weight of the conical valve, a step of measuring the position of the upper end of the raw material based on the position of the lower end of the conical valve at which the contact was detected, and a step of setting the position of the crucible so that the spacing between the lower end of the purge tube and the upper end of the raw material charged in the crucible becomes a predetermined distance and a melting process including a crucible position adjusting step of adjusting the position of the crucible so that the spacing between the lower end of the purge tube and the upper end of the raw material maintains a predetermined distance in accordance with the progress of melting of the raw material are performed. As a result, it is possible to perform control so that the spacing between the lower end of the purge tube and the upper end of the raw material charged in the crucible becomes a predetermined distance.

Claim (Index 25):
The method for producing a single crystal according to  claim 17 , wherein\n the step of detecting contact between the lower end of the conical valve and the upper end of the raw material based on the rate of change in the weight of the conical valve detects that the lower end of the conical valve and the raw material have come into contact with each other if, on an assumption that a weight of the conical valve in a state in which the raw material is charged into the crucible and the recharge pipe becomes empty is a reference weight, a measured weight of the conical valve is lighter than the reference weight by 20% or more and then stops performing a movement in such a way that the conical valve and the crucible get relatively closer to each other.

Metadata:
- Claim Count in Document: 59.0
- Percentile: 90.0
- Lexical Diversity: 3.43902
- Patent Class: 117.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14428745', '11229712', '12936450', '13385609', '14425394']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.744420284488275
- 35 USC 102 Novelty (BERT): 0.532340696754215
- Combined Prediction Score: 0.723212325714869
- Mean Citation Score: 248.344992
- Max Citation Score: 325.09442
- Similarity Product: 208.0522469974947

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

Dataset: test