PATENT CLAIM ANALYSIS

Application Number: 15780932
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["250", "287000"]

Abstract:
Four main rod electrodes included in a main electrode section are disposed in a rotationally symmetric manner around an ion optical axis. Among four pre-rod electrodes included in a pre-electrode section disposed in front of the main electrode section, two are in contact with a circle of a radius r 0 , whereas the other two are disposed to be in contact with a circle of a radius R 0  larger than r 0 , resulting in rotational asymmetry around the ion optical axis. Accordingly, a shape of acceptance on an x-y plane regarding positions of ions in the pre-electrode section becomes elliptical. This allows the shape of the acceptance to become gradually flat as the ions travel along the ion optical axis, reducing a mismatch between emittance of incoming ions and the acceptance on a receiving side, and relieving ion loss during ion introduction.

Claim (Index 3):
The quadrupole mass filter according to  claim 2 , wherein\n the sectional shapes of the curved surfaces facing the central axis of the pre-rod electrodes are all arc-shaped, and the first two of the pre-rod electrodes positioned so as to sandwich the central axis and the second two of the pre-rod electrodes adjacent to the first two of the pre-rod electrodes around the central axis have different radii of the arcs.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 97.0
- Lexical Diversity: 2.01316
- Patent Class: 250.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['12594450', '13639474', '12920306', '14898804', '14045979']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7661034950363259
- 35 USC 102 Novelty (BERT): 0.5195123950029783
- Combined Prediction Score: 0.7414443850329911
- Mean Citation Score: 302.2430280000001
- Max Citation Score: 329.41928
- Similarity Product: 238.9903652545977

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