{"id":"https://openalex.org/A5110144941","orcid":null,"observed_orcids":[],"display_name":"Yoshimasa Sakai","raw_author_names":["Sakai, Yoshimasa","Yoshimasa Sakai","\u9152\u4e95\u826f\u6b63"],"full_name":"Sakai, Yoshimasa","works_count":52,"cited_by_count":945,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":14,"i10_index":17},"ids":{"openalex":"https://openalex.org/A5110144941","orcid":null,"observed_orcids":[]},"affiliations":[{"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":[1999,1998,1997]},{"institution":{"id":"https://openalex.org/I114531698","ror":"https://ror.org/0112mx960","display_name":"Tokyo Institute of Technology","country_code":"JP","type":"education","lineage":["https://openalex.org/I114531698","https://openalex.org/I4400009020"]},"years":[2020,2019,2017,2005,2004,2002,2001,2000]},{"institution":{"id":"https://openalex.org/I1298590031","ror":"https://ror.org/01w6wtk13","display_name":"Shizuoka University","country_code":"JP","type":"education","lineage":["https://openalex.org/I1298590031"]},"years":[2009]},{"institution":{"id":"https://openalex.org/I168192097","ror":"https://ror.org/05d8avs16","display_name":"Mitsubishi Chemical (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I168192097"]},"years":[2006,2004]},{"institution":{"id":"https://openalex.org/I173009982","ror":"https://ror.org/04cd75h10","display_name":"Iwate University","country_code":"JP","type":"education","lineage":["https://openalex.org/I173009982"]},"years":[2002]},{"institution":{"id":"https://openalex.org/I180203408","ror":"https://ror.org/03zyp6p76","display_name":"Yokohama National University","country_code":"JP","type":"education","lineage":["https://openalex.org/I180203408"]},"years":[2008]},{"institution":{"id":"https://openalex.org/I4210099606","ror":"https://ror.org/011qgx996","display_name":"Mitsubishi Chemical Group Science and Technology Research Center (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I1306287861","https://openalex.org/I4210099606","https://openalex.org/I4210140025"]},"years":[2011,2010,2009,2008,2007,2006,2005,2004]},{"institution":{"id":"https://openalex.org/I4405275274","ror":"https://ror.org/0397qs123","display_name":"Bruker AXS (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4405275274"]},"years":[2009]}],"last_known_institutions":[{"id":"https://openalex.org/I114531698","ror":"https://ror.org/0112mx960","display_name":"Tokyo Institute of Technology","country_code":"JP","type":"education","lineage":["https://openalex.org/I114531698","https://openalex.org/I4400009020"]}],"topics":[{"id":"https://openalex.org/T10045","display_name":"Organic Electronics and Photovoltaics","count":22,"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"}},{"id":"https://openalex.org/T10660","display_name":"Conducting polymers and applications","count":13,"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"}},{"id":"https://openalex.org/T10611","display_name":"Organic Light-Emitting Diodes Research","count":12,"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"}},{"id":"https://openalex.org/T10903","display_name":"Porphyrin and Phthalocyanine Chemistry","count":10,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"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/T12084","display_name":"Synthesis and properties of polymers","count":10,"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"}}],"topic_share":[{"id":"https://openalex.org/T12084","display_name":"Synthesis and properties of polymers","value":8.17e-05,"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"}},{"id":"https://openalex.org/T10045","display_name":"Organic Electronics and Photovoltaics","value":7.22e-05,"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"}},{"id":"https://openalex.org/T10611","display_name":"Organic Light-Emitting Diodes Research","value":6.55e-05,"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"}},{"id":"https://openalex.org/T11025","display_name":"Nonlinear Optical Materials Research","value":6.2e-05,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"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/T10903","display_name":"Porphyrin and Phthalocyanine Chemistry","value":6.17e-05,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"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":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.9331569671630859},{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.7877312898635864},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.5539716482162476},{"id":"127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","score":0.45095789432525635},{"id":"178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","score":0.41526883840560913}],"counts_by_year":[{"year":1997,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1998,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1999,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2000,"works_count":2,"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":2,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":2006,"works_count":6,"oa_works_count":1,"cited_by_count":0},{"year":2007,"works_count":3,"oa_works_count":3,"cited_by_count":0},{"year":2008,"works_count":6,"oa_works_count":3,"cited_by_count":0},{"year":2009,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2011,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":70},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":69},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":64},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":34},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":47},{"year":2017,"works_count":4,"oa_works_count":0,"cited_by_count":41},{"year":2018,"works_count":3,"oa_works_count":0,"cited_by_count":27},{"year":2019,"works_count":3,"oa_works_count":1,"cited_by_count":24},{"year":2020,"works_count":1,"oa_works_count":0,"cited_by_count":30},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":40},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":28},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":25},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":20},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":16},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":13}],"display_name_alternatives":["Sakai, Yoshimasa","Yoshimasa Sakai","\u9152\u4e95\u826f\u6b63"],"block_key":"y sakai","works_api_url":"https://api.openalex.org/works?filter=author.id:A5110144941","updated_date":"2026-10-31T12:29:50","created_date":"2016-06-24T00:00:00"}
