| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D2211-008 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D1-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B21C3-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B21C1-003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B21F35-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D8-065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D7-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D9-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D7-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D1-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C8-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D8-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D9-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C8-22 |
| filingDate |
2017-06-08^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2019-04-25^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-WO2018012158-A1 |
| titleOfInvention |
Spring steel wire, spring, method of manufacturing spring steel wire, and method of manufacturing spring |
| abstract |
Steel wire for springs is 0.5 mass% or more and 0.8 mass% or less carbon, 1.0 mass% or more and 2.5 mass% or less silicon, and 0.2 mass% or more and 1.0 mass% or less And manganese of 0.5% by mass or more and 2.5% by mass or less, the balance being composed of iron and unavoidable impurities, and made of steel having a tempered martensitic structure. The hardness of the surface layer region which is a region within 10 μm from the outer peripheral surface is harder than 0 HV and 50 HV or less as compared with the region other than the surface layer region. |
| priorityDate |
2016-07-14^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |