{"id":"https://openalex.org/A5047175238","orcid":"https://orcid.org/0000-0001-9984-2889","observed_orcids":["https://orcid.org/0000-0001-9984-2889"],"display_name":"Naohiko Imai","raw_author_names":["Imai Naohiko","Imai, Naohiko","N Imai","N. Imai","Naohiko Imai","\u4eca\u4e95\u76f4\u5f66","\u753a\u7530\u614e\u6cbb"],"full_name":"Naohiko Imai","works_count":112,"cited_by_count":2033,"summary_stats":{"2yr_mean_citedness":1.6428571428571428,"h_index":18,"i10_index":24},"ids":{"openalex":"https://openalex.org/A5047175238","orcid":"https://orcid.org/0000-0001-9984-2889","observed_orcids":["https://orcid.org/0000-0001-9984-2889"]},"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":[2011,2009]},{"institution":{"id":"https://openalex.org/I163917720","ror":"https://ror.org/043axf581","display_name":"St. Marianna University School of Medicine","country_code":"JP","type":"education","lineage":["https://openalex.org/I163917720"]},"years":[2025,2024,2023,2022,2021,2020,2019,2018,2017,2016,2015,2014,2013,2012]},{"institution":{"id":"https://openalex.org/I203951103","ror":"https://ror.org/02kn6nx58","display_name":"Keio University","country_code":"JP","type":"education","lineage":["https://openalex.org/I203951103"]},"years":[2007,2005]},{"institution":{"id":"https://openalex.org/I4210098866","ror":"https://ror.org/013y4v758","display_name":"Yokohama City Seibu Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210098866"]},"years":[2026,2025,2024,2023,2022,2015]},{"institution":{"id":"https://openalex.org/I4210107168","ror":"https://ror.org/01k8ej563","display_name":"Keio University Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210107168"]},"years":[2005]},{"institution":{"id":"https://openalex.org/I4210139085","ror":"https://ror.org/04g1fwn42","display_name":"Kyorin University Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210139085"]},"years":[2022]},{"institution":{"id":"https://openalex.org/I4210166463","ror":"https://ror.org/05rkz5e28","display_name":"Toranomon Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210166463"]},"years":[2022]},{"institution":{"id":"https://openalex.org/I4405283616","ror":"https://ror.org/01zsn5506","display_name":"Kawasaki Municipal Tama Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4405283616"]},"years":[2018,2017]},{"institution":{"id":"https://openalex.org/I4405285607","ror":"https://ror.org/05ryk9w06","display_name":"St. Marianna University Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4405285607"]},"years":[2019,2014]},{"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":[2007,2005]}],"last_known_institutions":[{"id":"https://openalex.org/I4210098866","ror":"https://ror.org/013y4v758","display_name":"Yokohama City Seibu Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210098866"]}],"topics":[{"id":"https://openalex.org/T10291","display_name":"Dialysis and Renal Disease Management","count":29,"subfield":{"id":"https://openalex.org/subfields/2727","display_name":"Nephrology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10684","display_name":"Acute Kidney Injury Research","count":18,"subfield":{"id":"https://openalex.org/subfields/2727","display_name":"Nephrology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10408","display_name":"Chronic Kidney Disease and Diabetes","count":17,"subfield":{"id":"https://openalex.org/subfields/2727","display_name":"Nephrology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10373","display_name":"Renal Transplantation Outcomes and Treatments","count":16,"subfield":{"id":"https://openalex.org/subfields/2747","display_name":"Transplantation"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11029","display_name":"Renal Diseases and Glomerulopathies","count":14,"subfield":{"id":"https://openalex.org/subfields/2727","display_name":"Nephrology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"topic_share":[{"id":"https://openalex.org/T11967","display_name":"Electrolyte and hormonal disorders","value":0.0001082,"subfield":{"id":"https://openalex.org/subfields/2727","display_name":"Nephrology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T12962","display_name":"Nephrotoxicity and Medicinal Plants","value":0.0001004,"subfield":{"id":"https://openalex.org/subfields/2727","display_name":"Nephrology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T12876","display_name":"Potassium and Related Disorders","value":9.63e-05,"subfield":{"id":"https://openalex.org/subfields/2727","display_name":"Nephrology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10291","display_name":"Dialysis and Renal Disease Management","value":8.15e-05,"subfield":{"id":"https://openalex.org/subfields/2727","display_name":"Nephrology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11139","display_name":"Gout, Hyperuricemia, Uric Acid","value":6.99e-05,"subfield":{"id":"https://openalex.org/subfields/2727","display_name":"Nephrology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9868168830871582},{"id":"54847362","wikidata":"https://www.wikidata.org/wiki/Q177635","display_name":"Nephrology","score":0.8630788326263428},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.787619948387146},{"id":"2778653478","wikidata":"https://www.wikidata.org/wiki/Q1054718","display_name":"Kidney disease","score":0.7424853444099426},{"id":"2780091579","wikidata":"https://www.wikidata.org/wiki/Q9377","display_name":"Kidney","score":0.7144636511802673}],"counts_by_year":[{"year":2005,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2007,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2011,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":3,"oa_works_count":2,"cited_by_count":21},{"year":2013,"works_count":3,"oa_works_count":1,"cited_by_count":37},{"year":2014,"works_count":4,"oa_works_count":3,"cited_by_count":24},{"year":2015,"works_count":5,"oa_works_count":3,"cited_by_count":26},{"year":2016,"works_count":4,"oa_works_count":3,"cited_by_count":33},{"year":2017,"works_count":7,"oa_works_count":3,"cited_by_count":44},{"year":2018,"works_count":11,"oa_works_count":7,"cited_by_count":38},{"year":2019,"works_count":4,"oa_works_count":4,"cited_by_count":63},{"year":2020,"works_count":5,"oa_works_count":3,"cited_by_count":107},{"year":2021,"works_count":7,"oa_works_count":3,"cited_by_count":116},{"year":2022,"works_count":5,"oa_works_count":4,"cited_by_count":126},{"year":2023,"works_count":8,"oa_works_count":8,"cited_by_count":104},{"year":2024,"works_count":8,"oa_works_count":5,"cited_by_count":131},{"year":2025,"works_count":3,"oa_works_count":2,"cited_by_count":102},{"year":2026,"works_count":3,"oa_works_count":2,"cited_by_count":106}],"display_name_alternatives":["Imai Naohiko","Imai, Naohiko","N Imai","N. Imai","Naohiko Imai","\u4eca\u4e95\u76f4\u5f66","\u753a\u7530\u614e\u6cbb"],"block_key":"n imai","works_api_url":"https://api.openalex.org/works?filter=author.id:A5047175238","awards_count":1,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5047175238","updated_date":"2026-11-12T13:17:38","created_date":"2016-06-24T00:00:00"}