PATENT CLAIM ANALYSIS

Application Number: 16086852
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-02
Patent Classification: ["430", "108220"]

Abstract:
The positively-chargeable black toner includes colored resin particles containing a binder resin, carbon black and, as a charge control resin, a quaternary ammonium salt group-containing copolymer, wherein the quaternary ammonium salt group-containing copolymer is a styrene acrylic polymer containing a quaternary ammonium salt group-containing (meth)acrylate monomer unit; wherein a copolymerization ratio of the quaternary ammonium salt group-containing (meth)acrylate monomer in the quaternary ammonium salt group-containing copolymer, is in a range of from 0.1% by mass to 2.5% by mass. A content of the carbon black is in a range of from 10 parts by mass to 15 parts by mass with respect to 100 parts by mass of the binder resin. A blow-off charge amount of the colored resin particles measured by a specific charge amount measuring method, is in a range of from 5 μC/g to 60 μC/g.

Claim (Index 1):
A positively-chargeable black toner comprising colored resin particles containing a binder resin, carbon black and, as a charge control resin, a quaternary ammonium salt group-containing copolymer,\n wherein the quaternary ammonium salt group-containing copolymer is a styrene acrylic polymer containing a quaternary ammonium salt group-containing (meth)acrylate monomer unit; wherein a copolymerization ratio of the quaternary ammonium salt group-containing (meth)acrylate monomer in the quaternary ammonium salt group-containing copolymer, is in a range of from 0.1% by mass to 2.5% by mass; wherein a content of the carbon black is in a range of from 10 parts by mass to 15 parts by mass with respect to 100 parts by mass of the binder resin; and wherein a blow-off charge amount of the colored resin particles measured by a charge amount measuring method mentioned below, is in a range of from 5 \u03bcC/g to 60 \u03bcC/g: first, 0.25 g of the colored resin particles and 9.75 g of a ferrite carrier (spherical, non-resin-coated) are put in a 30 cc glass container (inside bottom diameter: 30 mm, height: 50 mm); using a roller mixer, the glass container is rotated at 160 rotations per minute (rpm) for 30 minutes to carry out a triboelectric charging treatment in an environment of 23\u00b0 C. and a relative humidity of 50%; after the triboelectric charging treatment, 0.2 g of a mixture of the colored resin particles and the ferrite carrier is put in a Faraday gauge; and using a blow-off powder charge amount measuring device, the blow-off charge amount (\u03bcC/g) of the colored resin particles is measured by blowing off for 30 seconds in a condition of a nitrogen gas pressure of 0.098 MPa.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 97.0
- Lexical Diversity: 2.41538
- Patent Class: 430.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13357166', '15561722', '12022501', '10182708', '15197887']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7887328877371836
- 35 USC 102 Novelty (BERT): 0.51494970820198
- Combined Prediction Score: 0.7613545697836633
- Mean Citation Score: 302.788098
- Max Citation Score: 334.58008
- Similarity Product: 263.81272732449054

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

Dataset: test