{"id":"https://openalex.org/A5041755811","orcid":"https://orcid.org/0009-0000-8730-5760","observed_orcids":["https://orcid.org/0009-0000-8730-5760"],"display_name":"Hiroaki Koshima","raw_author_names":["Hiroaki KOSHIMA","Hiroaki Koshima"],"full_name":"Hiroaki Koshima","works_count":11,"cited_by_count":71,"summary_stats":{"2yr_mean_citedness":2.0,"h_index":4,"i10_index":2},"ids":{"openalex":"https://openalex.org/A5041755811","orcid":"https://orcid.org/0009-0000-8730-5760","observed_orcids":["https://orcid.org/0009-0000-8730-5760"]},"affiliations":[{"institution":{"id":"https://openalex.org/I4210087728","ror":"https://ror.org/002v59719","display_name":"Idemitsu Kosan (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210087728"]},"years":[2026,2025,2024,2020,2019,2016,2010,2008,2007]}],"last_known_institutions":[{"id":"https://openalex.org/I4210087728","ror":"https://ror.org/002v59719","display_name":"Idemitsu Kosan (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210087728"]}],"topics":[{"id":"https://openalex.org/T11557","display_name":"Lubricants and Their Additives","count":11,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11138","display_name":"Tribology and Lubrication Engineering","count":10,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10721","display_name":"Surfactants and Colloidal Systems","count":4,"subfield":{"id":"https://openalex.org/subfields/1606","display_name":"Physical and Theoretical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12362","display_name":"Tribology and Wear Analysis","count":2,"subfield":{"id":"https://openalex.org/subfields/2211","display_name":"Mechanics of Materials"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10310","display_name":"Corrosion Behavior and Inhibition","count":1,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T11557","display_name":"Lubricants and Their Additives","value":6.54e-05,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11138","display_name":"Tribology and Lubrication Engineering","value":4.26e-05,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12197","display_name":"Brake Systems and Friction Analysis","value":2.41e-05,"subfield":{"id":"https://openalex.org/subfields/2203","display_name":"Automotive Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12362","display_name":"Tribology and Wear Analysis","value":2.1e-05,"subfield":{"id":"https://openalex.org/subfields/2211","display_name":"Mechanics of Materials"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10721","display_name":"Surfactants and Colloidal Systems","value":1.03e-05,"subfield":{"id":"https://openalex.org/subfields/1606","display_name":"Physical and Theoretical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.8184335231781006},{"id":"42360764","wikidata":"https://www.wikidata.org/wiki/Q83588","display_name":"Chemical engineering","score":0.5651518106460571},{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.5469340682029724},{"id":"127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","score":0.2449806034564972},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.08890444040298462}],"counts_by_year":[{"year":2007,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2010,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":5},{"year":2016,"works_count":1,"oa_works_count":0,"cited_by_count":5},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2019,"works_count":2,"oa_works_count":1,"cited_by_count":3},{"year":2020,"works_count":1,"oa_works_count":1,"cited_by_count":8},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2024,"works_count":1,"oa_works_count":1,"cited_by_count":7},{"year":2025,"works_count":1,"oa_works_count":1,"cited_by_count":6},{"year":2026,"works_count":1,"oa_works_count":1,"cited_by_count":8}],"display_name_alternatives":["Hiroaki KOSHIMA","Hiroaki Koshima"],"block_key":"h koshima","works_api_url":"https://api.openalex.org/works?filter=author.id:A5041755811","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5041755811","updated_date":"2026-11-12T13:17:38","created_date":"2016-06-24T00:00:00"}
