PATENT CLAIM ANALYSIS

Application Number: 15755746
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["313", "141000"]

Abstract:
A spark plug wherein when a discharge tip is viewed from a direction of an axial line, a melted portion is formed in at least a region on a second-end side of an electrode base material from a center of a discharge layer, and wherein in a section that includes a center line along a longitudinal direction of a ground electrode and that is parallel to an axial line, a proportion of a length of the melted portion along the longitudinal direction to a length of the discharge tip along the longitudinal direction of the electrode base material is greater than or equal to 76.2%, with the length of the melted portion along the longitudinal direction being within a range in which the discharge tip exists along the longitudinal direction

Claim (Index 1):
A spark plug comprising a center electrode that extends in a direction of an axial line, an insulator having an axial hole for disposing the center electrode therein, a cylindrical metal shell that holds the insulator, and a ground electrode including an electrode base material whose first end portion is connected to a front end of the metal shell and a discharge tip that is joined to an inner side surface of a second end portion of the electrode base material and that faces the center electrode with a gap therebetween,\n wherein the discharge tip includes\n a discharge layer that is disposed adjacent to the center electrode and that contains a noble metal or a noble metal alloy, and \n an intermediate layer, a first end thereof being joined to the discharge layer and at least part of a second end thereof being joined to the electrode base material via a melted portion, the intermediate layer containing a noble metal element that is contained by a largest amount among noble metal elements that are contained in the discharge layer, an amount of the noble metal element that is contained in the intermediate layer being smaller than an amount of the noble metal element that is contained in the discharge layer, \n wherein when the discharge tip is viewed from the direction of the axial line, the melted portion is formed in at least a region on a second-end side of the electrode base material from a center of the discharge layer, and wherein in a section that includes a center line along a longitudinal direction of the ground electrode and that is parallel to the axial line, a proportion of a length of the melted portion along the longitudinal direction to a length of the discharge tip along the longitudinal direction is greater than or equal to 76.2%, with the length of the melted portion along the longitudinal direction being within a range in which the discharge tip exists along the longitudinal direction.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 88.0
- Lexical Diversity: 2.41071
- Patent Class: 313.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12521206', '12274396', '15472673', '12274828', '13876181']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7269894125820151
- 35 USC 102 Novelty (BERT): 0.4754662659392966
- Combined Prediction Score: 0.7018370979177433
- Mean Citation Score: 232.86579
- Max Citation Score: 247.67819
- Similarity Product: 202.99373421481727

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

Dataset: test