{"id":"https://openalex.org/A5115444792","orcid":"https://orcid.org/0000-0003-2568-9433","observed_orcids":["https://orcid.org/0000-0003-2568-9433"],"display_name":"K. Yamamoto","raw_author_names":["K YAMAMOTO","K Yamamoto","K. Yamamoto","KAZUHIRO YAMAMOTO","Kazuhiro Yamamoto","Yamamoto, K."],"full_name":"Yamamoto, Kazuhiro","works_count":69,"cited_by_count":1159,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":15,"i10_index":19},"ids":{"openalex":"https://openalex.org/A5115444792","orcid":"https://orcid.org/0000-0003-2568-9433","observed_orcids":["https://orcid.org/0000-0003-2568-9433"]},"affiliations":[{"institution":{"id":"https://openalex.org/I118347220","ror":"https://ror.org/04jndar25","display_name":"NEC (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I118347220"]},"years":[1989]},{"institution":{"id":"https://openalex.org/I135598925","ror":"https://ror.org/00p4k0j84","display_name":"Kyushu University","country_code":"JP","type":"education","lineage":["https://openalex.org/I135598925"]},"years":[1991]},{"institution":{"id":"https://openalex.org/I146399215","ror":"https://ror.org/02956yf07","display_name":"University of Tsukuba","country_code":"JP","type":"education","lineage":["https://openalex.org/I146399215"]},"years":[1994,1989]},{"institution":{"id":"https://openalex.org/I159385669","ror":"https://ror.org/01hjzeq58","display_name":"Chiba University","country_code":"JP","type":"education","lineage":["https://openalex.org/I159385669"]},"years":[1998,1997,1996,1995,1994]},{"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":[2008]},{"institution":{"id":"https://openalex.org/I22299242","ror":"https://ror.org/02kpeqv85","display_name":"Kyoto University","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]},"years":[1991,1990,1989]},{"institution":{"id":"https://openalex.org/I317356780","ror":"https://ror.org/02skfsw40","display_name":"Osaka City University","country_code":"JP","type":"education","lineage":["https://openalex.org/I317356780","https://openalex.org/I4387152983"]},"years":[2021,2010]},{"institution":{"id":"https://openalex.org/I4210110652","ror":"https://ror.org/01sjwvz98","display_name":"RIKEN","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210110652"]},"years":[1996,1994]},{"institution":{"id":"https://openalex.org/I4210120436","ror":"https://ror.org/032w3wj13","display_name":"Research Institute for Production Development","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210120436"]},"years":[1992,1991,1990,1989,1988]},{"institution":{"id":"https://openalex.org/I4387152983","ror":"https://ror.org/01hvx5h04","display_name":"Osaka Metropolitan University","country_code":"JP","type":"education","lineage":["https://openalex.org/I4387152983"]},"years":[2026,2024,2023]},{"institution":{"id":"https://openalex.org/I4399598384","ror":"https://ror.org/0349bbg69","display_name":"Kyoto University Institute for Chemical Research","country_code":null,"type":"facility","lineage":["https://openalex.org/I22299242","https://openalex.org/I4399598384"]},"years":[1991,1990,1989]},{"institution":{"id":"https://openalex.org/I4405286141","ror":"https://ror.org/017ve6144","display_name":"Nambu Yoichiro Institute of Theoretical and Experimental Physics, Osaka Metropolitan University","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4387152983","https://openalex.org/I4405286141"]},"years":[2024,2021]},{"institution":{"id":"https://openalex.org/I60134161","ror":"https://ror.org/04chrp450","display_name":"Nagoya University","country_code":"JP","type":"education","lineage":["https://openalex.org/I60134161"]},"years":[1999,1960]},{"institution":{"id":"https://openalex.org/I74801974","ror":"https://ror.org/057zh3y96","display_name":"The University of Tokyo","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]},"years":[1989]},{"institution":{"id":"https://openalex.org/I861488341","ror":"https://ror.org/05xhmzx41","display_name":"Ube (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I861488341"]},"years":[1993,1992,1991]},{"institution":{"id":"https://openalex.org/I90023481","ror":"https://ror.org/016bgq349","display_name":"National Institute of Information and Communications Technology","country_code":"JP","type":"facility","lineage":["https://openalex.org/I90023481"]},"years":[2010,2009,2008]}],"last_known_institutions":[{"id":"https://openalex.org/I4387152983","ror":"https://ror.org/01hvx5h04","display_name":"Osaka Metropolitan University","country_code":"JP","type":"education","lineage":["https://openalex.org/I4387152983"]}],"topics":[{"id":"https://openalex.org/T10037","display_name":"Physics of Superconductivity and Magnetism","count":28,"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/T11808","display_name":"Superconducting Materials and Applications","count":15,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T10382","display_name":"Quantum and electron transport phenomena","count":13,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"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/T10022","display_name":"Semiconductor Quantum Structures and Devices","count":12,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"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/T12588","display_name":"Electronic and Structural Properties of Oxides","count":12,"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/T12588","display_name":"Electronic and Structural Properties of Oxides","value":9.39e-05,"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/T11261","display_name":"Quantum chaos and dynamical systems","value":7.17e-05,"subfield":{"id":"https://openalex.org/subfields/3109","display_name":"Statistical and Nonlinear 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/T11808","display_name":"Superconducting Materials and Applications","value":6.03e-05,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T12491","display_name":"Superconductivity in MgB2 and Alloys","value":5.91e-05,"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/T11527","display_name":"3D IC and TSV technologies","value":5.74e-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":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.9575724601745605},{"id":"26873012","wikidata":"https://www.wikidata.org/wiki/Q214781","display_name":"Condensed matter physics","score":0.870148241519928},{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.7691788077354431},{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.7665165662765503},{"id":"62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","score":0.2668616771697998}],"counts_by_year":[{"year":1960,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1961,"works_count":1,"oa_works_count":1,"cited_by_count":1},{"year":1963,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1965,"works_count":1,"oa_works_count":1,"cited_by_count":3},{"year":1969,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1980,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1983,"works_count":1,"oa_works_count":1,"cited_by_count":1},{"year":1987,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":2,"oa_works_count":0,"cited_by_count":159},{"year":1989,"works_count":8,"oa_works_count":0,"cited_by_count":328},{"year":1990,"works_count":9,"oa_works_count":0,"cited_by_count":451},{"year":1991,"works_count":4,"oa_works_count":0,"cited_by_count":10},{"year":1992,"works_count":2,"oa_works_count":0,"cited_by_count":38},{"year":1993,"works_count":2,"oa_works_count":0,"cited_by_count":41},{"year":1994,"works_count":5,"oa_works_count":0,"cited_by_count":21},{"year":1995,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":4,"oa_works_count":0,"cited_by_count":11},{"year":1997,"works_count":1,"oa_works_count":0,"cited_by_count":20},{"year":1998,"works_count":2,"oa_works_count":1,"cited_by_count":5},{"year":1999,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":1,"oa_works_count":0,"cited_by_count":10},{"year":2006,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":2,"oa_works_count":2,"cited_by_count":45},{"year":2009,"works_count":4,"oa_works_count":2,"cited_by_count":0},{"year":2010,"works_count":2,"oa_works_count":1,"cited_by_count":8},{"year":2011,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2016,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2019,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2021,"works_count":1,"oa_works_count":1,"cited_by_count":5},{"year":2023,"works_count":1,"oa_works_count":1,"cited_by_count":2},{"year":2024,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2025,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2026,"works_count":1,"oa_works_count":1,"cited_by_count":0}],"display_name_alternatives":["K YAMAMOTO","K Yamamoto","K. Yamamoto","KAZUHIRO YAMAMOTO","Kazuhiro Yamamoto","Yamamoto, K."],"block_key":"k yamamoto","works_api_url":"https://api.openalex.org/works?filter=author.id:A5115444792","updated_date":"2026-10-24T12:28:35","created_date":"2016-06-24T00:00:00"}