PATENT CLAIM ANALYSIS

Application Number: 16381089
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-08
Patent Classification: ["313", "141000"]

Abstract:
A spark plug includes: a cylindrical mounting bracket attachable to an internal combustion engine; a center electrode that is held by the mounting bracket in an insulated manner and has a first end portion exposed and extended from a first end portion of the mounting bracket; a ground electrode that has a first end side joined to the first end portion of the mounting bracket and has a surface of the second end side extended to be opposed to the first end portion of the center electrode; a convex portion that protrudes from a base material of the ground electrode on the surface of the ground electrode toward the center electrode, has a surface protruded outward, and has surfaces without corners; and a precious metal layer formed on the surface of the convex portion.

Claim (Index 6):
A method for manufacturing a spark plug, the spark plug including:\n a cylindrical mounting bracket attachable to an internal combustion engine; a center electrode that is held by the mounting bracket in an insulated manner and has a first end portion exposed and extended from a first end portion of the mounting bracket; and a ground electrode that has a first end side joined to the first end portion of the mounting bracket and has a surface of the second end side extended to be opposed to the first end portion of the center electrode, wherein the method comprising: a convex portion forming step of forming a convex portion that protrudes from a base material of the ground electrode on the surface of the ground electrode toward the center electrode, has a surface protruded outward, and has surfaces without corners; a precious metal layer forming step of forming a precious metal layer on the surface of the convex portion; in the convex portion forming step, the convex portion is formed by protruding part of the base material of the ground electrode by extrusion molding, before the convex portion forming step, a bonding step of bonding the precious metal layer to the surface of the ground electrode is included, and in the precious metal layer forming step, the extrusion molding in the convex portion forming step is performed while the precious metal layer is welded in the bonding step to form the precious metal layer on the entire surface of the convex portion.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 100.0
- Lexical Diversity: 2.40678
- Patent Class: 313.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16381099', '12690230', '16088971', '12336807', '15472673']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7059093919764718
- 35 USC 102 Novelty (BERT): 0.4928036194187344
- Combined Prediction Score: 0.6845988147206982
- Mean Citation Score: 223.468228
- Max Citation Score: 301.7757299999999
- Similarity Product: 288.4004039266078

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