{"id":"https://openalex.org/A5087489643","orcid":"https://orcid.org/0000-0003-0335-3146","observed_orcids":["https://orcid.org/0000-0003-0335-3146"],"display_name":"Hiroki Otsuka","raw_author_names":["H Otsuka","H. OTSUKA","H. Otsuka","Hiroki OTSUKA","Hiroki Otsuka","Otsuka Hiroki","Otsuka, Hiroki"],"full_name":"OTSUKA, Hiroki","works_count":127,"cited_by_count":2200,"summary_stats":{"2yr_mean_citedness":0.75,"h_index":24,"i10_index":39},"ids":{"openalex":"https://openalex.org/A5087489643","orcid":"https://orcid.org/0000-0003-0335-3146","observed_orcids":["https://orcid.org/0000-0003-0335-3146"]},"affiliations":[{"institution":{"id":"https://openalex.org/I107139324","ror":"https://ror.org/03ss88z23","display_name":"Kagoshima University","country_code":"JP","type":"education","lineage":["https://openalex.org/I107139324"]},"years":[2017,2015,2014,2013,2012,2011,2010,2009,2008,1987]},{"institution":{"id":"https://openalex.org/I112524849","ror":"https://ror.org/00xy44n04","display_name":"Yamagata University","country_code":"JP","type":"education","lineage":["https://openalex.org/I112524849"]},"years":[2018]},{"institution":{"id":"https://openalex.org/I118574687","ror":"https://ror.org/0447kww10","display_name":"University of Miyazaki","country_code":"JP","type":"education","lineage":["https://openalex.org/I118574687"]},"years":[2015]},{"institution":{"id":"https://openalex.org/I1314466530","ror":"https://ror.org/01p7qe739","display_name":"Tokai University","country_code":"JP","type":"education","lineage":["https://openalex.org/I1314466530"]},"years":[2012,1954]},{"institution":{"id":"https://openalex.org/I161296585","ror":"https://ror.org/05sj3n476","display_name":"Tokyo University of Science","country_code":"JP","type":"education","lineage":["https://openalex.org/I161296585"]},"years":[2018,2015]},{"institution":{"id":"https://openalex.org/I171481255","ror":"https://ror.org/020wjcq07","display_name":"Shibaura Institute of Technology","country_code":"JP","type":"education","lineage":["https://openalex.org/I171481255"]},"years":[2014,2013,2012]},{"institution":{"id":"https://openalex.org/I205349734","ror":"https://ror.org/02e16g702","display_name":"Hokkaido University","country_code":"JP","type":"education","lineage":["https://openalex.org/I205349734"]},"years":[2022,2021,2018]},{"institution":{"id":"https://openalex.org/I4210090372","ror":"https://ror.org/00b6s9f18","display_name":"Osaka National Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210090372","https://openalex.org/I4210137409"]},"years":[1999]},{"institution":{"id":"https://openalex.org/I4210105815","ror":"https://ror.org/01kqdxr19","display_name":"Gifu University Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210105815"]},"years":[2022,2021,2020,2016]},{"institution":{"id":"https://openalex.org/I4210110672","ror":"https://ror.org/01vpa9c32","display_name":"Ehime University Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210110672","https://openalex.org/I43545212"]},"years":[1998]},{"institution":{"id":"https://openalex.org/I4210134253","ror":"https://ror.org/03c266r37","display_name":"Gifu Prefectural General Medical Center","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210134253"]},"years":[2020,2019]},{"institution":{"id":"https://openalex.org/I4210139512","ror":"https://ror.org/03q7y2p06","display_name":"Ibaraki Prefectural Central Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210139512"]},"years":[1997]},{"institution":{"id":"https://openalex.org/I42405503","ror":"https://ror.org/024exxj48","display_name":"Gifu University","country_code":"JP","type":"education","lineage":["https://openalex.org/I42405503"]},"years":[2023,2022,2021,2020,2019,2018,2017,2016,2015,1996]},{"institution":{"id":"https://openalex.org/I43545212","ror":"https://ror.org/017hkng22","display_name":"Ehime University","country_code":"JP","type":"education","lineage":["https://openalex.org/I43545212"]},"years":[2002,1999,1998,1996,1993]},{"institution":{"id":"https://openalex.org/I4405254323","ror":"https://ror.org/01p6f7g83","display_name":"SAITAMA SEKISHINKAI Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4405254323"]},"years":[2014,2010]},{"institution":{"id":"https://openalex.org/I4405264969","ror":"https://ror.org/03gc0yr46","display_name":"Polyplastics Co., Ltd. (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4405264969"]},"years":[2005,2004,2003,2002,2001,1999]},{"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":[2026,1999]},{"institution":{"id":"https://openalex.org/I922474255","ror":"https://ror.org/044vy1d05","display_name":"Tokushima University","country_code":"JP","type":"education","lineage":["https://openalex.org/I922474255"]},"years":[1999]},{"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":[1990,1985]}],"last_known_institutions":[{"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"]}],"topics":[{"id":"https://openalex.org/T10170","display_name":"Retinal Diseases and Treatments","count":26,"subfield":{"id":"https://openalex.org/subfields/2731","display_name":"Ophthalmology"},"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/T11377","display_name":"Retinal and Macular Surgery","count":19,"subfield":{"id":"https://openalex.org/subfields/2731","display_name":"Ophthalmology"},"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/T11027","display_name":"Metabolism and Genetic Disorders","count":17,"subfield":{"id":"https://openalex.org/subfields/1308","display_name":"Clinical Biochemistry"},"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/T11194","display_name":"Ocular Diseases and Beh\u00e7et\u2019s Syndrome","count":16,"subfield":{"id":"https://openalex.org/subfields/2731","display_name":"Ophthalmology"},"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/T10323","display_name":"Analog and Mixed-Signal Circuit Design","count":11,"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"}}],"topic_share":[{"id":"https://openalex.org/T12267","display_name":"Diet and metabolism studies","value":0.000131,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology (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/T11377","display_name":"Retinal and Macular Surgery","value":0.0001028,"subfield":{"id":"https://openalex.org/subfields/2731","display_name":"Ophthalmology"},"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/T13097","display_name":"Male Breast Health Studies","value":9.7e-05,"subfield":{"id":"https://openalex.org/subfields/2730","display_name":"Oncology"},"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/T12604","display_name":"Glycogen Storage Diseases and Myoclonus","value":7.58e-05,"subfield":{"id":"https://openalex.org/subfields/1303","display_name":"Biochemistry"},"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/T13115","display_name":"Axial and Atropisomeric Chirality Synthesis","value":7.53e-05,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic 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":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9845218658447266},{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.9833999872207642},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.8749332427978516},{"id":"86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","score":0.7947895526885986},{"id":"118487528","wikidata":"https://www.wikidata.org/wiki/Q161437","display_name":"Ophthalmology","score":0.7842922210693359}],"counts_by_year":[{"year":1954,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1968,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1971,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1974,"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":1982,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1984,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1985,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1986,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1987,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1990,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1993,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1996,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1997,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1998,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":1999,"works_count":4,"oa_works_count":3,"cited_by_count":0},{"year":2001,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2002,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2003,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2004,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2008,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":4,"oa_works_count":2,"cited_by_count":0},{"year":2011,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":10,"oa_works_count":0,"cited_by_count":56},{"year":2013,"works_count":16,"oa_works_count":4,"cited_by_count":63},{"year":2014,"works_count":7,"oa_works_count":3,"cited_by_count":102},{"year":2015,"works_count":8,"oa_works_count":1,"cited_by_count":84},{"year":2016,"works_count":7,"oa_works_count":5,"cited_by_count":84},{"year":2017,"works_count":8,"oa_works_count":5,"cited_by_count":92},{"year":2018,"works_count":6,"oa_works_count":3,"cited_by_count":93},{"year":2019,"works_count":2,"oa_works_count":2,"cited_by_count":111},{"year":2020,"works_count":2,"oa_works_count":2,"cited_by_count":144},{"year":2021,"works_count":5,"oa_works_count":3,"cited_by_count":141},{"year":2022,"works_count":3,"oa_works_count":2,"cited_by_count":124},{"year":2023,"works_count":2,"oa_works_count":1,"cited_by_count":100},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":123},{"year":2025,"works_count":1,"oa_works_count":0,"cited_by_count":99},{"year":2026,"works_count":3,"oa_works_count":3,"cited_by_count":68}],"display_name_alternatives":["H Otsuka","H. OTSUKA","H. Otsuka","Hiroki OTSUKA","Hiroki Otsuka","Otsuka Hiroki","Otsuka, Hiroki"],"block_key":"h otsuka","works_api_url":"https://api.openalex.org/works?filter=author.id:A5087489643","updated_date":"2026-11-08T12:57:04","created_date":"2016-06-24T00:00:00"}
