PATENT CLAIM ANALYSIS

Application Number: 15938118
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["204", "426000"]

Abstract:
A gas sensor includes reference gas regulating device that applies a control voltage that is set between the reference electrode and the measurement-object gas side electrode; and a detecting device that detects the specific gas concentration in the measurement-object gas on the basis of a voltage between the reference electrode and the measurement electrode during a second period, from among a first period that is started upon setting of the control voltage to on state, during which a potential difference between the reference electrode and the measurement-object gas side electrode is large, and the second period that is started upon setting of the control voltage to off state after the potential difference falls from the first period. Tf, a fall time of the potential difference between the first period and the second period, and T 2 , a second time that is a length of the second period, satisfies Tf≤T 2.

Claim (Index 1):
A gas sensor comprising:\n a layered body that is formed by stacking a plurality of oxygen ion-conductive solid electrolyte layers, and that includes a measurement-object gas flowing portion which a measurement-object gas is introduced and flowed in; a reference electrode that is formed inside of the layered body, and that receives a reference gas introduced therein, the reference gas being used as a standard for detection of a specific gas concentration in the measurement-object gas; a measurement electrode provided on an inner peripheral surface of the measurement-object gas flowing portion; a measurement-object gas side electrode provided in a region of the layered body that is exposed to the measurement-object gas; a reference gas introducing portion that introduces the reference gas to a periphery of the reference electrode; a reference gas regulating device that applies a control voltage that is repetitively set to on state and off state between the reference electrode and the measurement-object gas side electrode to pump in oxygen to the periphery of the reference electrode; and a detecting device that detects the specific gas concentration in the measurement-object gas on the basis of a voltage between the reference electrode and the measurement electrode during a second period, from among a first period that is started upon setting of the control voltage to on state, during which a potential difference between the reference electrode and the measurement-object gas side electrode is large, and the second period that is started upon setting of the control voltage to off state after the potential difference falls from the first period, wherein the gas sensor satisfies the following Formula (1),\n Tf\u2264T 2\u2003\u2003(1) \n (where Tf is a fall time [msec] of the potential difference between the first period and the second period, and T 2  is a second time [msec] that is a length of the second period).

Metadata:
- Claim Count in Document: 9.0
- Percentile: 90.0
- Lexical Diversity: 2.75862
- Patent Class: 204.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14672735', '14319067', '14672793', '13413933', '14732949']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.783606000943144
- 35 USC 102 Novelty (BERT): 0.462455276917301
- Combined Prediction Score: 0.7514909285405598
- Mean Citation Score: 200.343778
- Max Citation Score: 232.25272
- Similarity Product: 224.29141466352465

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

Dataset: test