PATENT CLAIM ANALYSIS

Application Number: 15957722
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["347", "086000"]

Abstract:
An ink jet recording apparatus includes a recording head that ejects ink, an ink tank including an ink storage chamber and an air storage chamber. The ink storage chamber stores ink. The air storage chamber supplies air to the ink storage chamber along with supply of ink from the ink storage chamber to the recording head. An ink supply path communicates with the air storage chamber without passing the ink storage chamber. A valve switches between an open state in which the ink storage chamber communicates with the ink supply path and with the air storage chamber, and a close state in which the communication between the ink storage chamber and the ink supply path is blocked and the communication between the ink storage chamber and the air storage chamber is blocked.

Claim (Index 8):
The ink jet recording apparatus according to  claim 1 , wherein the valve includes a diaphragm valve, a protrusion portion disposed to oppose the diaphragm valve, and a drive unit that moves the diaphragm valve to a contact position where the diaphragm valve comes in contact with the protrusion portion and to a separated position where the diaphragm valve is separated from the protrusion portion.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 91.0
- Lexical Diversity: 3.08889
- Patent Class: 347.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15893052', '15335277', '09545834', '12580954', '14961681']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7778444194884
- 35 USC 102 Novelty (BERT): 0.4905256194518194
- Combined Prediction Score: 0.749112539484742
- Mean Citation Score: 230.545068
- Max Citation Score: 248.46945
- Similarity Product: 193.03844656857845

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