PATENT CLAIM ANALYSIS

Application Number: 15755402
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2018-12
Patent Classification: ["428", "552000"]

Abstract:
A composite member in which WC-based cemented carbide members are bonded to each other via a bonding layer formed by solid phase diffusion bonding of a bonding member made of a Ti foil. The bonding layer is constituted by first layers adjacent to the WC-based cemented carbide members and made of a TiC phase and a metal W phase in which an average area ratio of the TiC phase is 40 to 60%. The bonding layer also includes second layers adjacent to the first layers and made of a TiCo phase and a metal Ti phase in which an average area ratio of the TiCo phase is 50 to 95%, and a residual Ti layer.

Claim (Index 1):
A composite member comprising:\n a WC-based cemented carbide member A; a WC-based cemented carbide member B; and a bonding layer, the WC-based cemented carbide member A and the WC-based cemented carbide member B being bonded each other via the bonding layer, wherein (a) a first A layer made of a TiC phase and a metal W phase is formed adjacent to the WC-based cemented carbide member A, an average area ratio of the TiC phase in the first A layer being 40% to 60%, and a thickness of the first A layer being 0.5 \u03bcm to 3 \u03bcm, (b) a second A layer made of a TiCo phase and a metal Ti phase is formed adjacent to the first A layer, an average area ratio of the TiCo phase in the second A layer being 50% to 95%, and a thickness of the second A layer being 0.5 \u03bcm to 3 \u03bcm, (c) a first B layer made of a TiC phase and a metal W phase is formed adjacent to the WC-based cemented carbide member B, an average area ratio of the TiC phase in the first B layer being 40% to 60%, and a thickness of the first B layer being 0.5 \u03bcm to 3 \u03bcm, (d) a second B layer made of a TiCo phase and a metal Ti phase is formed adjacent to the first B layer, an average area ratio of the TiCo phase in the second B layer being 50% to 95%, and a thickness of the second B layer being 0.5 \u03bcm to 3 \u03bcm, and (e) a residual Ti layer is present in a central region of the bonding layer sandwiched between the second A layer and the second B layer, and the WC-based cemented carbide member A, the first A layer, the second A layer, the residual Ti layer, the second B layer, the first B layer, the WC-based cemented carbide member B are bonded in an order.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 96.0
- Lexical Diversity: 2.24074
- Patent Class: 428.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15127312', '12677979', '15107632', '11863113', '10296155']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9011866937814884
- 35 USC 102 Novelty (BERT): 0.5089696563208398
- Combined Prediction Score: 0.8619649900354237
- Mean Citation Score: 255.97332400000005
- Max Citation Score: 299.6222
- Similarity Product: 224.291680215311

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