PATENT CLAIM ANALYSIS

Application Number: 16291407
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-06
Patent Classification: ["501", "063000"]

Abstract:
A glass for chemical strengthening contains, in mole percentage on an oxide basis, 58 to 80% of SiO 2 , 13 to 18% of Al 2 O 3 , 0 to 5% of B 2 O 3 , 0.5 to 4% of P 2 O 5 , 4 to 10% of Li 2 O, 5 to 14% of Na 2 O, 0 to 2% of K 2 O, 0 to 11% of MgO, 0 to 5% of CaO, 0 to 20% of SrO, 0 to 15% of BaO, 0 to 10% of ZnO, 0 to 1% of TiO 2 , and 0 to 2% of ZrO 2 . A value of X is 30000 or more. The value of X is calculated based on the formula, X=SiO 2 ×329+Al 2 O 3 ×786+B 2 O 3 ×627+P 2 O 5 ×(− 941 )+Li 2 O×927+Na 2 O×47.5+K 2 O×(−371)+MgO×1230+CaO×1154+SrO×733+ZrO 2 ×51.8, by using the contents in mole percentage on an oxide basis of components.

Claim (Index 8):
A chemically strengthened glass sheet, comprising a glass which comprises, in mole percentage on an oxide basis, 58 to 72% of SiO 2 , 13 to 18% of Al 2 O 3 , 0 to 5% of B 2 O 3 , 0.5 to 4% of P 2 O 5 , 4 to 13% of Li 2 O, 7 to 14% of Na 2 O, 0 to 2% of K 2 O, 0 to 11% of MgO, 0 to 14% of CaO, 0 to 12% of SrO, 0 to 15% of BaO, 0 to 10% of ZnO, 0 to 1% of TiO 2 , and 0 to 2% of ZrO 2 , wherein:\n the chemically strengthened glass sheet has a surface compressive stress (CS) of 450 MPa or more; a compressive stress value (CS 90 ) in a portion at a depth of 90 \u03bcm from a surface of the chemically strengthened glass sheet is 25 MPa or more, or a compressive stress value (CS 100 ) in a portion at a depth of 100 \u03bcm from the surface is 15 MPa or more; a depth d h  of a portion at which a magnitude of an internal compressive stress of the chemically strengthened glass sheet reaches \u00bd of a surface compressive stress (CS) of the chemically strengthened glass sheet is 30 \u03bcm or less; and a value of X is 30000 or more, the value of X being calculated based on the following formula by using contents in mole percentage on an oxide basis of components of SiO 2 , Al 2 O 3 , B 2 O 3 , P 2 O 5 , Li 2 O, Na 2 O, K 2 O, MgO, CaO, SrO, BaO, and ZrO 2 :\n X=SiO 2 \u00d7329+Al 2 O 3 \u00d7786+B 2 O 3 \u00d7627+P 2 O 5 \u00d7(\u2212941)+Li 2 O\u00d7927+Na 2 O\u00d747.5+K 2 O\u00d7(\u2212371)+MgO\u00d71230+CaO\u00d71154+SrO\u00d7733+ZrO 2 \u00d751.8.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 99.0
- Lexical Diversity: 2.45679
- Patent Class: 501.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15908227', '15920009', '16033787', '16171556', '15804511']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8055787972395756
- 35 USC 102 Novelty (BERT): 0.66228256896174
- Combined Prediction Score: 0.791249174411792
- Mean Citation Score: 537.041878
- Max Citation Score: 652.5491
- Similarity Product: 645.0279043162108

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

Dataset: test