PATENT CLAIM ANALYSIS

Application Number: 15765481
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-03
Patent Classification: ["502", "304000"]

Abstract:
A catalyst powder according to the present invention is a catalyst powder that includes: a core portion that contains ceria and zirconia; and a surface layer portion that is located on the core portion and contains ceria and zirconia. The ratio (M 2 /M 1 ) is 0.30 or more and 0.95 or less, the ratio (M 2 /M 1 ) being the ratio of a mole fraction M 2  (mol %) of cerium in the surface layer portion measured using X-ray photoelectron spectroscopy to a mole fraction M 1  (mol %) of cerium in the entire powder. It is preferable that the ratio (M 4/2 /M 3/1 ) between M 3/1  and M 4/2  is 1.1 or more and 5.0 or less, wherein M 3/1  (=M 3 /M 1 ) represents the ratio between a mole fraction M 3  (mol %) of zirconium in the entire powder and a mole fraction M 1  (mol %) of cerium in the entirety of the powder, and M 4/2  (=M 4 /M 2 ) represents the ratio between a mole fraction M 4  (mol %) of zirconium measured using X-ray photoelectron spectroscopy and a mole fraction M 2  (mol %) of cerium measured using X-ray photoelectron spectroscopy.

Claim (Index 4):
The catalyst powder according to  claim 1 ,\n wherein a ratio (M 4/2 /M 3/1 ) between M 3/1  and M 4/2  is 1.1 or more and 5.0 or less, wherein M 3/1  (=M 3 /M 1 ) represents a ratio between a mole fraction M 3  (mol %) of zirconium in the entirety of the powder and a mole fraction M 1  (mol %) of cerium in the entirety of the powder, and M 4/2  (=M 4 /M 2 ) represents a ratio between a mole fraction M 4  (mol %) of zirconium in the surface layer portions measured using X-ray photoelectron spectroscopy and a mole fraction M 2  (mol %) of cerium in the surface layer portions measured using X-ray photoelectron spectroscopy.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 91.0
- Lexical Diversity: 3.43284
- Patent Class: 502.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11886327', '14897940', '15468956', '10589669', '15184247']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8134134789491185
- 35 USC 102 Novelty (BERT): 0.5296070312181199
- Combined Prediction Score: 0.7850328341760187
- Mean Citation Score: 287.396514
- Max Citation Score: 343.35742
- Similarity Product: 231.59805502908463

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