PATENT CLAIM ANALYSIS

Application Number: 15978178
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-04
Patent Classification: ["252", "30140H"]

Abstract:
This invention involves a kind of fluorine nitride fluorescent powder and the light emitting device containing the fluorescent powder. The chemical formula of fluorescent powder is R x (M y ,Eu z )Al a (Si b ,Ge c ,Mn f )N d F e . In the formula, R is selected from Li, Na and K (at least one element); M is selected from Ca, Sr, Mg and Ba (at least one element); x, y, z, a, b, c and d are the amount of substance of each component, where 0<x≤0.2, 0.9≤y≤1.0, 0.001≤z≤0.1, 0.9≤a≤0.99, 0.8≤b≤1.0, 0≤c≤0.1, 2.5≤d≤3.0, 0.01≤e≤1.2, 0.01≤f≤0.1. In this invention, alkali metal, fluorine element and manganese element are introduced in the fluorescent powder at the same time. The luminous efficiency is high, and the synthetic process is simple. Its structure is same with CaAlSiN 3 . The fluorescent powder may be used independently or combined with other fluorescent powder to prepare the light emitting device with high performance.

Claim (Index 2):
A light emitting device, comprising an excitation light source and an illuminant, wherein said illuminant includes the fluorescent powder of  claim 1 .

Metadata:
- Claim Count in Document: 5.0
- Percentile: 93.0
- Lexical Diversity: 1.97059
- Patent Class: 252.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14349703', '10918339', '13690453', '14900198', '14352578']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7967642385937952
- 35 USC 102 Novelty (BERT): 0.5149574736893235
- Combined Prediction Score: 0.7685835621033481
- Mean Citation Score: 282.651206
- Max Citation Score: 323.7557700000001
- Similarity Product: 283.00903445875184

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