PATENT CLAIM ANALYSIS

Application Number: 16033390
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["347", "061000"]

Abstract:
Provided is an ink jet recording method capable of suppressing deterioration in an ejection property which occurs after a protection layer is eluted by an electrochemical reaction. The ink jet recording method includes using an ink jet recording apparatus having a recording head equipped with a heater, a first protection layer and a second protection layer made of a material such as iridium and a unit of causing an electrochemical reaction with the second protection layer as one of electrodes and an ink-mediated conduction site as the other electrode and ejecting the ink from the recording head to record an image on a recording medium, wherein the ink is an aqueous ink containing a pigment, a resin dispersant for dispersing the pigment and a specified chelating agent.

Claim (Index 1):
An ink jet recording method comprising:\n using an ink jet recording apparatus having\n a recording head equipped with\n a heater placed in a ink flow path communicated with an ejection orifice, \n a first protection layer placed at a position corresponding to the heater and blocking a contact between the heater and an ink in the ink flow path, and \n a second protection layer placed at a position corresponding to the heater and to be brought into contact with the ink and includes at least one metal material selected from the group consisting of iridium, ruthenium and a material containing at least either one of iridium and ruthenium; and \n \n a unit of causing an electrochemical reaction with the second protection layer as one of electrodes and an ink-mediated conduction site as the other electrode to elute at least a portion of the second protection layer in the ink; and \n ejecting the ink from the recording head to record an image on a recording medium; wherein the ink comprises an aqueous ink containing a pigment, a resin dispersant for dispersing the pigment and a chelating agent which is at least either one of an alkanolamine having two or more hydroxy groups and a polyvalent carboxylic acid compound having two or more to four or less carboxy group.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 95.0
- Lexical Diversity: 1.85915
- Patent Class: 347.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16033463', '15227291', '10192650', '15364374', '10968986']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7592192443811863
- 35 USC 102 Novelty (BERT): 0.5140707864486679
- Combined Prediction Score: 0.7347043985879345
- Mean Citation Score: 258.640762
- Max Citation Score: 339.47278
- Similarity Product: 318.5304098968327

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

Dataset: test