{"id":"https://openalex.org/A5069746139","orcid":"https://orcid.org/0000-0002-7346-1831","observed_orcids":["https://orcid.org/0000-0002-7346-1831"],"display_name":"Toru Nikaido","raw_author_names":["NIKAIDO, TORU","NIKAIDO, Toru","Nikaido, T","Nikaido, Toru","T Nikaido","T. Nikaido","TORU NIKAIDO","Toru NIKAIDO","Toru Nikaido"],"full_name":"NIKAIDO, TORU","works_count":260,"cited_by_count":7566,"summary_stats":{"2yr_mean_citedness":2.5,"h_index":48,"i10_index":180},"ids":{"openalex":"https://openalex.org/A5069746139","orcid":"https://orcid.org/0000-0002-7346-1831","observed_orcids":["https://orcid.org/0000-0002-7346-1831"]},"affiliations":[{"institution":{"id":"https://openalex.org/I125602781","ror":"https://ror.org/051k3eh31","display_name":"Tokyo Medical and Dental University","country_code":"JP","type":"education","lineage":["https://openalex.org/I125602781","https://openalex.org/I4400009020"]},"years":[2021,2020,2019,2018,2017,2016,2015,2014,2013,2012,2011,2010,2009,2008,2007,2006,2005,2004,2003,2002,2001,2000,1999,1997,1996,1995,1994,1993,1991,1990]},{"institution":{"id":"https://openalex.org/I131868736","ror":"https://ror.org/0575ycz84","display_name":"Prince of Songkla University","country_code":"TH","type":"education","lineage":["https://openalex.org/I131868736"]},"years":[2001]},{"institution":{"id":"https://openalex.org/I142822886","ror":"https://ror.org/05epcpp46","display_name":"Asahi University","country_code":"JP","type":"education","lineage":["https://openalex.org/I142822886"]},"years":[2026,2025,2024,2023,2022,2021,2020,2019,2018]},{"institution":{"id":"https://openalex.org/I181391015","ror":"https://ror.org/04wffgt70","display_name":"Universidade Estadual de Campinas (UNICAMP)","country_code":"BR","type":"education","lineage":["https://openalex.org/I181391015"]},"years":[2008]}],"last_known_institutions":[{"id":"https://openalex.org/I142822886","ror":"https://ror.org/05epcpp46","display_name":"Asahi University","country_code":"JP","type":"education","lineage":["https://openalex.org/I142822886"]}],"topics":[{"id":"https://openalex.org/T10113","display_name":"Dental materials and restorations","count":238,"subfield":{"id":"https://openalex.org/subfields/3500","display_name":"General Dentistry"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10536","display_name":"Endodontics and Root Canal Treatments","count":162,"subfield":{"id":"https://openalex.org/subfields/3504","display_name":"Oral Surgery"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11958","display_name":"Dental Erosion and Treatment","count":100,"subfield":{"id":"https://openalex.org/subfields/3500","display_name":"General Dentistry"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T13129","display_name":"Material Properties and Applications","count":82,"subfield":{"id":"https://openalex.org/subfields/2500","display_name":"General Materials Science"},"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/T10368","display_name":"Dental Health and Care Utilization","count":42,"subfield":{"id":"https://openalex.org/subfields/3500","display_name":"General Dentistry"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"topic_share":[{"id":"https://openalex.org/T11958","display_name":"Dental Erosion and Treatment","value":0.001102,"subfield":{"id":"https://openalex.org/subfields/3500","display_name":"General Dentistry"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T13129","display_name":"Material Properties and Applications","value":0.0007487,"subfield":{"id":"https://openalex.org/subfields/2500","display_name":"General Materials Science"},"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/T10536","display_name":"Endodontics and Root Canal Treatments","value":0.0004677,"subfield":{"id":"https://openalex.org/subfields/3504","display_name":"Oral Surgery"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10113","display_name":"Dental materials and restorations","value":0.0004308,"subfield":{"id":"https://openalex.org/subfields/3500","display_name":"General Dentistry"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11145","display_name":"Epoxy Resin Curing Processes","value":0.0001348,"subfield":{"id":"https://openalex.org/subfields/2507","display_name":"Polymers and Plastics"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"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":0.9517612457275391},{"id":"2779263046","wikidata":"https://www.wikidata.org/wiki/Q189637","display_name":"Dentin","score":0.9390460252761841},{"id":"68928338","wikidata":"https://www.wikidata.org/wiki/Q131790","display_name":"Adhesive","score":0.9368406534194946},{"id":"159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","score":0.8666757345199585},{"id":"2779227376","wikidata":"https://www.wikidata.org/wiki/Q6505497","display_name":"Layer (electronics)","score":0.6882351636886597}],"counts_by_year":[{"year":1987,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1989,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1990,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1991,"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":1994,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1999,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":10,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":9,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":5,"oa_works_count":2,"cited_by_count":0},{"year":2005,"works_count":7,"oa_works_count":3,"cited_by_count":0},{"year":2006,"works_count":7,"oa_works_count":6,"cited_by_count":0},{"year":2007,"works_count":13,"oa_works_count":6,"cited_by_count":0},{"year":2008,"works_count":7,"oa_works_count":5,"cited_by_count":0},{"year":2009,"works_count":11,"oa_works_count":6,"cited_by_count":0},{"year":2010,"works_count":13,"oa_works_count":8,"cited_by_count":0},{"year":2011,"works_count":9,"oa_works_count":5,"cited_by_count":0},{"year":2012,"works_count":11,"oa_works_count":5,"cited_by_count":270},{"year":2013,"works_count":9,"oa_works_count":6,"cited_by_count":254},{"year":2014,"works_count":2,"oa_works_count":0,"cited_by_count":253},{"year":2015,"works_count":10,"oa_works_count":6,"cited_by_count":363},{"year":2016,"works_count":8,"oa_works_count":5,"cited_by_count":285},{"year":2017,"works_count":6,"oa_works_count":4,"cited_by_count":292},{"year":2018,"works_count":17,"oa_works_count":10,"cited_by_count":338},{"year":2019,"works_count":14,"oa_works_count":7,"cited_by_count":366},{"year":2020,"works_count":17,"oa_works_count":12,"cited_by_count":437},{"year":2021,"works_count":27,"oa_works_count":21,"cited_by_count":625},{"year":2022,"works_count":6,"oa_works_count":3,"cited_by_count":466},{"year":2023,"works_count":3,"oa_works_count":3,"cited_by_count":516},{"year":2024,"works_count":9,"oa_works_count":8,"cited_by_count":616},{"year":2025,"works_count":2,"oa_works_count":2,"cited_by_count":503},{"year":2026,"works_count":7,"oa_works_count":5,"cited_by_count":393}],"display_name_alternatives":["NIKAIDO, TORU","NIKAIDO, Toru","Nikaido, T","Nikaido, Toru","T Nikaido","T. Nikaido","TORU NIKAIDO","Toru NIKAIDO","Toru Nikaido"],"block_key":"t nikaido","works_api_url":"https://api.openalex.org/works?filter=author.id:A5069746139","awards_count":3,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5069746139","updated_date":"2026-11-13T15:08:24","created_date":"2016-06-24T00:00:00"}
