{"id":"https://openalex.org/A5083516152","orcid":"https://orcid.org/0000-0002-9165-3810","observed_orcids":["https://orcid.org/0000-0002-9165-3810"],"display_name":"Koji S. Nakayama","raw_author_names":["K Nakayama","K. Nakayama","K. S. Nakayama","K.S Nakayama","K.S. Nakayama","Koji NAKAYAMA","Koji Nakayama","Koji S Nakayama","Koji S. NAKAYAMA","Koji S. Nakayama","Koji. S. Nakayama"],"full_name":"Koji S. Nakayama","works_count":91,"cited_by_count":2143,"summary_stats":{"2yr_mean_citedness":5.111111111111111,"h_index":20,"i10_index":36},"ids":{"openalex":"https://openalex.org/A5083516152","orcid":"https://orcid.org/0000-0002-9165-3810","observed_orcids":["https://orcid.org/0000-0002-9165-3810"]},"affiliations":[{"institution":{"id":"https://openalex.org/I130238516","ror":"https://ror.org/017zqws13","display_name":"University of Minnesota","country_code":"US","type":"education","lineage":["https://openalex.org/I130238516"]},"years":[2000,1999]},{"institution":{"id":"https://openalex.org/I157725225","ror":"https://ror.org/047426m28","display_name":"University of Illinois Urbana-Champaign","country_code":"US","type":"education","lineage":["https://openalex.org/I157725225"]},"years":[2006,2005,2004,2003,2002]},{"institution":{"id":"https://openalex.org/I180203408","ror":"https://ror.org/03zyp6p76","display_name":"Yokohama National University","country_code":"JP","type":"education","lineage":["https://openalex.org/I180203408"]},"years":[1995,1993]},{"institution":{"id":"https://openalex.org/I201537933","ror":"https://ror.org/01dq60k83","display_name":"Tohoku University","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]},"years":[2025,2020,2019,2018,2017,2016,2015,2014,2013,2012,2010,2009,2008,2007,2006,2004,2002,2001,2000,1999]},{"institution":{"id":"https://openalex.org/I4210120603","ror":"https://ror.org/01w78qg15","display_name":"Daicel (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210120603"]},"years":[2026]},{"institution":{"id":"https://openalex.org/I4387152242","ror":"https://ror.org/04664mr26","display_name":"Institute for Materials Research, Tohoku University","country_code":"JP","type":"facility","lineage":["https://openalex.org/I201537933","https://openalex.org/I4387152242"]},"years":[2012,2009,2008,2007,2006,2004,2002,2001,2000,1999]},{"institution":{"id":"https://openalex.org/I4405286224","ror":"https://ror.org/01gpt6p30","display_name":"Advanced Institute for Materials Research, Tohoku University","country_code":"JP","type":"facility","lineage":["https://openalex.org/I201537933","https://openalex.org/I4405286224"]},"years":[2020,2016,2015,2014,2013,2012,2011,2010,2009]},{"institution":{"id":"https://openalex.org/I4405287282","ror":"https://ror.org/04ps06597","display_name":"New Industry Creation Hatchery Center, Tohoku University","country_code":"JP","type":"facility","lineage":["https://openalex.org/I201537933","https://openalex.org/I4405287282"]},"years":[2019,2018]},{"institution":{"id":"https://openalex.org/I4405287424","ror":"https://ror.org/053t3hh85","display_name":"The Institute of Scientific and Industrial Research, The University of Osaka","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4405287424","https://openalex.org/I98285908"]},"years":[2025,2024]},{"institution":{"id":"https://openalex.org/I98285908","ror":"https://ror.org/035t8zc32","display_name":"The University of Osaka","country_code":"JP","type":"education","lineage":["https://openalex.org/I98285908"]},"years":[2026,2025,2024,2023]}],"last_known_institutions":[{"id":"https://openalex.org/I4210120603","ror":"https://ror.org/01w78qg15","display_name":"Daicel (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210120603"]},{"id":"https://openalex.org/I98285908","ror":"https://ror.org/035t8zc32","display_name":"The University of Osaka","country_code":"JP","type":"education","lineage":["https://openalex.org/I98285908"]}],"topics":[{"id":"https://openalex.org/T13531","display_name":"Surface and Thin Film Phenomena","count":32,"subfield":{"id":"https://openalex.org/subfields/3104","display_name":"Condensed Matter Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11853","display_name":"Semiconductor materials and interfaces","count":27,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12285","display_name":"Surface Chemistry and Catalysis","count":23,"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/T10633","display_name":"Metallic Glasses and Amorphous Alloys","count":21,"subfield":{"id":"https://openalex.org/subfields/2506","display_name":"Metals and Alloys"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12039","display_name":"Electron and X-Ray Spectroscopy Techniques","count":12,"subfield":{"id":"https://openalex.org/subfields/2508","display_name":"Surfaces, Coatings and Films"},"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/T10633","display_name":"Metallic Glasses and Amorphous Alloys","value":0.0001945,"subfield":{"id":"https://openalex.org/subfields/2506","display_name":"Metals and Alloys"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12285","display_name":"Surface Chemistry and Catalysis","value":0.0001495,"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/T13531","display_name":"Surface and Thin Film Phenomena","value":0.0001244,"subfield":{"id":"https://openalex.org/subfields/3104","display_name":"Condensed Matter Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13463","display_name":"Nanoporous metals and alloys","value":0.0001086,"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"}},{"id":"https://openalex.org/T11527","display_name":"3D IC and TSV technologies","value":9.45e-05,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"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":0.9488016366958618},{"id":"159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","score":0.8455554246902466},{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.7272753715515137},{"id":"171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","score":0.6978892683982849},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.6319581270217896}],"counts_by_year":[{"year":1993,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1999,"works_count":7,"oa_works_count":1,"cited_by_count":0},{"year":2000,"works_count":7,"oa_works_count":1,"cited_by_count":0},{"year":2001,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":2002,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":2003,"works_count":4,"oa_works_count":2,"cited_by_count":0},{"year":2004,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":2007,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2008,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2009,"works_count":4,"oa_works_count":3,"cited_by_count":0},{"year":2010,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2011,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":2,"oa_works_count":0,"cited_by_count":122},{"year":2013,"works_count":3,"oa_works_count":0,"cited_by_count":93},{"year":2014,"works_count":5,"oa_works_count":1,"cited_by_count":95},{"year":2015,"works_count":10,"oa_works_count":1,"cited_by_count":89},{"year":2016,"works_count":2,"oa_works_count":1,"cited_by_count":103},{"year":2017,"works_count":1,"oa_works_count":0,"cited_by_count":96},{"year":2018,"works_count":2,"oa_works_count":2,"cited_by_count":97},{"year":2019,"works_count":1,"oa_works_count":0,"cited_by_count":100},{"year":2020,"works_count":1,"oa_works_count":1,"cited_by_count":98},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":97},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":71},{"year":2023,"works_count":2,"oa_works_count":0,"cited_by_count":47},{"year":2024,"works_count":3,"oa_works_count":3,"cited_by_count":60},{"year":2025,"works_count":5,"oa_works_count":3,"cited_by_count":59},{"year":2026,"works_count":1,"oa_works_count":1,"cited_by_count":46}],"display_name_alternatives":["K Nakayama","K. Nakayama","K. S. Nakayama","K.S Nakayama","K.S. Nakayama","Koji NAKAYAMA","Koji Nakayama","Koji S Nakayama","Koji S. NAKAYAMA","Koji S. Nakayama","Koji. S. Nakayama"],"block_key":"k nakayama","works_api_url":"https://api.openalex.org/works?filter=author.id:A5083516152","awards_count":0,"updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}
