{"id":"https://openalex.org/A5108560517","orcid":null,"observed_orcids":[],"display_name":"Toshikazu Yoshioka","raw_author_names":["Toshikazu YOSHIOKA","Toshikazu Yoshioka","Yoshioka, Toshikazu"],"full_name":"Toshikazu Yoshioka","works_count":38,"cited_by_count":163,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":5,"i10_index":5},"ids":{"openalex":"https://openalex.org/A5108560517","orcid":null,"observed_orcids":[]},"affiliations":[{"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":[1997]},{"institution":{"id":"https://openalex.org/I4210135230","ror":"https://ror.org/02wzg6d13","display_name":"Geological Survey of Japan","country_code":"JP","type":"other","lineage":["https://openalex.org/I4210135230","https://openalex.org/I73613424"]},"years":[2005,2001,1998,1997,1996,1987]},{"institution":{"id":"https://openalex.org/I4405275999","ror":"https://ror.org/04ntw6w26","display_name":"DIA Consultants Co., Ltd. (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4405275999"]},"years":[2015]},{"institution":{"id":"https://openalex.org/I4405285832","ror":"https://ror.org/00djafz11","display_name":"Research Institute of Earthquake and Volcano Geology","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210135230","https://openalex.org/I4405285832","https://openalex.org/I73613424"]},"years":[2015]},{"institution":{"id":"https://openalex.org/I69740276","ror":"https://ror.org/00ws30h19","display_name":"Tokyo Metropolitan University","country_code":"JP","type":"education","lineage":["https://openalex.org/I69740276"]},"years":[1986]},{"institution":{"id":"https://openalex.org/I73613424","ror":"https://ror.org/01703db54","display_name":"National Institute of Advanced Industrial Science and Technology","country_code":"JP","type":"government","lineage":["https://openalex.org/I73613424"]},"years":[2015,2009,2007,2006,2005,2002,2001]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T10110","display_name":"earthquake and tectonic studies","count":34,"subfield":{"id":"https://openalex.org/subfields/1908","display_name":"Geophysics"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13177","display_name":"Geological and Geophysical Studies","count":27,"subfield":{"id":"https://openalex.org/subfields/1907","display_name":"Geology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10965","display_name":"Geological formations and processes","count":16,"subfield":{"id":"https://openalex.org/subfields/1904","display_name":"Earth-Surface Processes"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13800","display_name":"Earthquake and Disaster Impact Studies","count":14,"subfield":{"id":"https://openalex.org/subfields/3305","display_name":"Geography, Planning and Development"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10160","display_name":"Seismic Performance and Analysis","count":4,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural 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/T10110","display_name":"earthquake and tectonic studies","value":8.01e-05,"subfield":{"id":"https://openalex.org/subfields/1908","display_name":"Geophysics"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13800","display_name":"Earthquake and Disaster Impact Studies","value":5.66e-05,"subfield":{"id":"https://openalex.org/subfields/3305","display_name":"Geography, Planning and Development"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12456","display_name":"Geotourism and Geoheritage Conservation","value":4.17e-05,"subfield":{"id":"https://openalex.org/subfields/1907","display_name":"Geology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13177","display_name":"Geological and Geophysical Studies","value":4.16e-05,"subfield":{"id":"https://openalex.org/subfields/1907","display_name":"Geology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11955","display_name":"Urban and spatial planning","value":2.51e-05,"subfield":{"id":"https://openalex.org/subfields/2309","display_name":"Nature and Landscape Conservation"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","score":0.9339538812637329},{"id":"165205528","wikidata":"https://www.wikidata.org/wiki/Q83371","display_name":"Seismology","score":0.8248790502548218},{"id":"175551986","wikidata":"https://www.wikidata.org/wiki/Q47089","display_name":"Fault (geology)","score":0.7611634731292725},{"id":"205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","score":0.5206436514854431},{"id":"151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","score":0.4794917702674866}],"counts_by_year":[{"year":1986,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1987,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":1992,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1994,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1996,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1998,"works_count":3,"oa_works_count":3,"cited_by_count":0},{"year":1999,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2001,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":2002,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2005,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":2006,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2007,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2009,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":5},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":9},{"year":2014,"works_count":1,"oa_works_count":0,"cited_by_count":5},{"year":2015,"works_count":5,"oa_works_count":1,"cited_by_count":6},{"year":2016,"works_count":2,"oa_works_count":0,"cited_by_count":6},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2018,"works_count":1,"oa_works_count":0,"cited_by_count":1},{"year":2019,"works_count":2,"oa_works_count":0,"cited_by_count":4},{"year":2020,"works_count":1,"oa_works_count":0,"cited_by_count":12},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":13},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":11},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":6}],"display_name_alternatives":["Toshikazu YOSHIOKA","Toshikazu Yoshioka","Yoshioka, Toshikazu"],"block_key":"t yoshioka","works_api_url":"https://api.openalex.org/works?filter=author.id:A5108560517","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5108560517","updated_date":"2026-11-10T14:30:39","created_date":"2016-06-24T00:00:00"}