{"id":"https://openalex.org/A5042681102","orcid":"https://orcid.org/0000-0001-7302-7587","observed_orcids":["https://orcid.org/0000-0001-7302-7587"],"display_name":"Hiroyuki Hirai","raw_author_names":["H Hirai","H. Hirai","Hiroyuki HIRAI","Hiroyuki Hirai"],"full_name":"Hirai, Hiroyuki","works_count":73,"cited_by_count":4754,"summary_stats":{"2yr_mean_citedness":8.5,"h_index":34,"i10_index":52},"ids":{"openalex":"https://openalex.org/A5042681102","orcid":"https://orcid.org/0000-0001-7302-7587","observed_orcids":["https://orcid.org/0000-0001-7302-7587"]},"affiliations":[{"institution":{"id":"https://openalex.org/I111979921","ror":"https://ror.org/000e0be47","display_name":"Northwestern University","country_code":"US","type":"education","lineage":["https://openalex.org/I111979921"]},"years":[2023,2019]},{"institution":{"id":"https://openalex.org/I1294278766","ror":"https://ror.org/03a6zw892","display_name":"Lurie Children's Hospital","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1294278766"]},"years":[2023,2019]},{"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":[2015,2014,2013,2012,2011,2010,2009,2007]},{"institution":{"id":"https://openalex.org/I27837315","ror":"https://ror.org/00jmfr291","display_name":"University of Michigan","country_code":"US","type":"education","lineage":["https://openalex.org/I27837315"]},"years":[2019,2016]},{"institution":{"id":"https://openalex.org/I39422238","ror":"https://ror.org/02mpq6x41","display_name":"University of Illinois Chicago","country_code":"US","type":"education","lineage":["https://openalex.org/I39422238"]},"years":[2024]},{"institution":{"id":"https://openalex.org/I4210114445","ror":"https://ror.org/01zcpa714","display_name":"Michigan Medicine","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210114445"]},"years":[2019,2016]},{"institution":{"id":"https://openalex.org/I4210136772","ror":"https://ror.org/04vr3cf25","display_name":"BML (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210136772"]},"years":[2025,2020,2017,2016,2014,2013,2012,2011,2010,2009,2008,2004,2003,2002,2001]},{"institution":{"id":"https://openalex.org/I6178835","ror":"https://ror.org/00sjd5653","display_name":"Ibaraki University","country_code":"JP","type":"education","lineage":["https://openalex.org/I6178835"]},"years":[2002,2001]}],"last_known_institutions":[{"id":"https://openalex.org/I4210136772","ror":"https://ror.org/04vr3cf25","display_name":"BML (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210136772"]}],"topics":[{"id":"https://openalex.org/T10051","display_name":"Asthma and respiratory diseases","count":26,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory Medicine"},"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/T11346","display_name":"Mast cells and histamine","count":20,"subfield":{"id":"https://openalex.org/subfields/2403","display_name":"Immunology"},"field":{"id":"https://openalex.org/fields/24","display_name":"Immunology and Microbiology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10678","display_name":"Inflammatory mediators and NSAID effects","count":19,"subfield":{"id":"https://openalex.org/subfields/2736","display_name":"Pharmacology (medical)"},"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/T10268","display_name":"Developmental Biology and Gene Regulation","count":11,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10505","display_name":"Pluripotent Stem Cells Research","count":11,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"topic_share":[{"id":"https://openalex.org/T11346","display_name":"Mast cells and histamine","value":0.0001353,"subfield":{"id":"https://openalex.org/subfields/2403","display_name":"Immunology"},"field":{"id":"https://openalex.org/fields/24","display_name":"Immunology and Microbiology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10678","display_name":"Inflammatory mediators and NSAID effects","value":8.34e-05,"subfield":{"id":"https://openalex.org/subfields/2736","display_name":"Pharmacology (medical)"},"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/T11677","display_name":"Congenital heart defects research","value":6.7e-05,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10505","display_name":"Pluripotent Stem Cells Research","value":6.29e-05,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12438","display_name":"Urticaria and Related Conditions","value":4.06e-05,"subfield":{"id":"https://openalex.org/subfields/2708","display_name":"Dermatology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"x_concepts":[{"id":"86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","score":0.9428327083587646},{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9379088878631592},{"id":"203014093","wikidata":"https://www.wikidata.org/wiki/Q101929","display_name":"Immunology","score":0.7371187806129456},{"id":"95444343","wikidata":"https://www.wikidata.org/wiki/Q7141","display_name":"Cell biology","score":0.7174417972564697},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.6743330359458923}],"counts_by_year":[{"year":1999,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2001,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2002,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2003,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2005,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2007,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":2008,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":2009,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":2010,"works_count":5,"oa_works_count":4,"cited_by_count":0},{"year":2011,"works_count":11,"oa_works_count":6,"cited_by_count":0},{"year":2012,"works_count":5,"oa_works_count":5,"cited_by_count":283},{"year":2013,"works_count":6,"oa_works_count":3,"cited_by_count":253},{"year":2014,"works_count":6,"oa_works_count":5,"cited_by_count":258},{"year":2015,"works_count":3,"oa_works_count":2,"cited_by_count":246},{"year":2016,"works_count":5,"oa_works_count":3,"cited_by_count":250},{"year":2017,"works_count":1,"oa_works_count":1,"cited_by_count":272},{"year":2018,"works_count":2,"oa_works_count":1,"cited_by_count":263},{"year":2019,"works_count":1,"oa_works_count":1,"cited_by_count":210},{"year":2020,"works_count":2,"oa_works_count":2,"cited_by_count":231},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":278},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":232},{"year":2023,"works_count":1,"oa_works_count":1,"cited_by_count":184},{"year":2024,"works_count":1,"oa_works_count":1,"cited_by_count":165},{"year":2025,"works_count":1,"oa_works_count":1,"cited_by_count":154},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":122}],"display_name_alternatives":["H Hirai","H. Hirai","Hiroyuki HIRAI","Hiroyuki Hirai"],"block_key":"h hirai","works_api_url":"https://api.openalex.org/works?filter=author.id:A5042681102","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5042681102","updated_date":"2026-11-12T13:17:38","created_date":"2016-06-24T00:00:00"}