PATENT CLAIM ANALYSIS

Application Number: 15982023
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["399", "254000"]

Abstract:
A developing device includes a developer carrying member, a first chamber, a second chamber, a first communicating portion, a second communicating portion, and a feeding screw, provided in the second chamber, including a feeding portion having a first helical blade and including a returning portion having a second helical blade in the form of a plurality of threads, the feeding portion and the returning portion being provided so that a boundary portion therebetween opposes the second communicating portion. The first helical blade and the second helical blade satisfy the following relationship: P2≥P1, where P1 is a pitch of the first helical blade and P2 is a pitch of the second helical blade.

Claim (Index 9):
A developing device according to  claim 1 , wherein when said feeding screw is a first feeding screw including a first feeding portion having said first helical blade configured to feed the developer in the first direction and including a first returning portion having said second helical blade in the form of the plurality of threads configured to feed the developer in the second direction, said developing device includes a second feeding screw, provided in said first chamber, including a second feeding portion having a third helical blade configured to feed the developer in the second direction and including a second returning portion having a fourth helical blade in the form of a plurality of threads configured to feed the developer fed to said second feeding portion in the first direction, and\n wherein said second feeding screw is provided so that an upstream end of said fourth helical blade is positioned between an upstream end and a downstream end of said first communicating portion with respect to the second direction, and is formed so as to satisfy the following relationships:\n P 4\u2265 P 3 and  nA\u00d7LA>P 4, \n where P3 is a pitch of said third helical blade, P4 is a pitch of said fourth helical blade, nA is a number of threads of said fourth helical blade, and LA is a length of said fourth helical blade with respect to the second direction.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 93.0
- Lexical Diversity: 2.6383
- Patent Class: 399.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15982040', '15982028', '15446339', '15229860', '14548773']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8530931225994131
- 35 USC 102 Novelty (BERT): 0.4987976418264419
- Combined Prediction Score: 0.8176635745221159
- Mean Citation Score: 280.61832200000003
- Max Citation Score: 302.8207700000001
- Similarity Product: 259.0190504990388

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