PATENT CLAIM ANALYSIS

Application Number: 16398310
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-08
Patent Classification: ["148", "661000"]

Abstract:
A tailored rolled blank in which a plate thickness changes in a tapered shape in a rolling direction, comprises a thick-wall portion, and a thin-wall portion that is thinner than the thick-wall portion. In the tailored rolled blank, a ratio of an average hardness H tmax  of a thickest wall portion at which the plate thickness is thickest to an average hardness H tmin  of a thinnest wall portion at which the plate thickness is thinnest is in a range of more than 1.0 to 1.5. For the tailored rolled blank, an average dislocation density of the thinnest wall portion is 1×10 14  m −2  or less, and a number density of fine Ti carbo-nitrides having a particle diameter of 10 nm or less is more than 2×10 17  per cm 3 .

Claim (Index 18):
The tailored rolled blank according to  claim 17 , wherein the tailored rolled blank is produced using a hot-rolled steel plate comprising:\n a chemical composition consisting of, in mass %, C: 0.03 to 0.1%, Si: 1.5% or less, Mn: 1.0 to 2.5%, P: 0.1% or less, S: 0.02% or less, Al: 0.01 to 1.2%, N: 0.01% or less, Ti: 0.015 to 0.15%, Nb: 0 to 0.1%, Cu: 0 to 1%, Ni: 0 to 1%, Mo: 0 to 0.2%, V: 0 to 0.2%, Cr: 0 to 1%, W: 0 to 0.5%, Mg: 0 to 0.005%, Ca: 0 to 0.005%, rare earth metal: 0 to 0.1%, B: 0 to 0.005%, and one or more types of element selected from a group consisting of Zr, Sn, Co and Zn in a total amount of 0 to 0.05%, with the balance being Fe and impurities, and satisfying Formula (1); and a microstructure containing, in terms of area ratio, 20% or more of bainite, with 50% or more in terms of area ratio of the balance being ferrite;\n wherein: \n at a depth position that is equivalent to one-half of a plate thickness from a surface of the heat-rolled steel plate, an average value of pole densities of an orientation group {100}<011> to \n {223}<110> comprising crystal orientations {100}<011>, {116}<110>, {114}<110>, {113}<110>, {112}<110>, {335}<110> and {223}<110> is four or less and a pole density of a {332}<113> crystal orientation is 4.8 or less;\n at a depth position that is equivalent to one-eighth of the plate thickness from the surface of the heat-rolled steel plate, a pole density of a {110}<001> crystal orientation is 2.5 or more; \n a number density of fine Ti carbo-nitrides having a particle diameter of 10 nm or less among Ti carbo-nitrides in the heat-rolled steel plate is 1.0\u00d710 17  per cm 3 ; and \n a bake hardening amount is 15 MPa or more;\n [Ti]\u221248/14\u00d7[N]\u221248/32\u00d7[S]\u22650\u2003\u2003(1), \n \n where a content (mass %) of a corresponding element is substituted for each symbol of an element in Formula (1).

Metadata:
- Claim Count in Document: 5.0
- Percentile: 100.0
- Lexical Diversity: 2.08955
- Patent Class: 148.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15303807', '15561337', '15531336', '14372126', '14249902']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7241410137152694
- 35 USC 102 Novelty (BERT): 0.5433449670389902
- Combined Prediction Score: 0.7060614090476415
- Mean Citation Score: 214.537806
- Max Citation Score: 348.5511
- Similarity Product: 304.6596972938776

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