{"id":"https://openalex.org/A5108205366","orcid":null,"observed_orcids":[],"display_name":"Takao Yotsuyanagi","raw_author_names":["T Yotsuyanagi","T. YOTSUYANAGI","T. Yotsuyanagi","TAKAO YOTSUYANAGI","Takao YOTSUYANAGI","Takao Yotsuyanagi","Takao. Yotsuyanagi"],"full_name":"Takao Yotsuyanagi","works_count":189,"cited_by_count":4470,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":25,"i10_index":77},"ids":{"openalex":"https://openalex.org/A5108205366","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I129634264","ror":"https://ror.org/02hcx7n63","display_name":"Toho University","country_code":"JP","type":"education","lineage":["https://openalex.org/I129634264"]},"years":[2000]},{"institution":{"id":"https://openalex.org/I201537933","ror":"https://ror.org/01dq60k83","display_name":"Tohoku University","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]},"years":[2022,2013,2011,2010,2007,2006,2002,2001,2000,1999,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988,1987,1986,1985,1984,1983,1982,1981,1980,1979,1978]},{"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":[1996,1981,1978,1977,1976,1975,1974,1973,1972,1971,1970,1969,1967]},{"institution":{"id":"https://openalex.org/I4210131518","ror":"https://ror.org/03twzfb97","display_name":"National Institute of Technology, Kushiro College","country_code":"JP","type":"education","lineage":["https://openalex.org/I4210120810","https://openalex.org/I4210131518"]},"years":[1969]},{"institution":{"id":"https://openalex.org/I4210157421","ror":"https://ror.org/05b6t0e74","display_name":"Hokkaido Prefectual Police","country_code":"JP","type":"government","lineage":["https://openalex.org/I4210157421"]},"years":[1976]},{"institution":{"id":"https://openalex.org/I4405262881","ror":"https://ror.org/05rgj9466","display_name":"Japanese Society for Engineering Education","country_code":"JP","type":"nonprofit","lineage":["https://openalex.org/I4405262881"]},"years":[2022]},{"institution":{"id":"https://openalex.org/I9224756","ror":"https://ror.org/03awzbc87","display_name":"Northeastern University","country_code":"CN","type":"education","lineage":["https://openalex.org/I9224756"]},"years":[1978]}],"last_known_institutions":[{"id":"https://openalex.org/I201537933","ror":"https://ror.org/01dq60k83","display_name":"Tohoku University","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]},{"id":"https://openalex.org/I4405262881","ror":"https://ror.org/05rgj9466","display_name":"Japanese Society for Engineering Education","country_code":"JP","type":"nonprofit","lineage":["https://openalex.org/I4405262881"]}],"topics":[{"id":"https://openalex.org/T10180","display_name":"Analytical chemistry methods development","count":118,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10908","display_name":"Analytical Chemistry and Chromatography","count":62,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10532","display_name":"Molecular Sensors and Ion Detection","count":36,"subfield":{"id":"https://openalex.org/subfields/1607","display_name":"Spectroscopy"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11746","display_name":"Inorganic and Organometallic Chemistry","count":28,"subfield":{"id":"https://openalex.org/subfields/1604","display_name":"Inorganic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11936","display_name":"Chemical and Physical Properties in Aqueous Solutions","count":27,"subfield":{"id":"https://openalex.org/subfields/1506","display_name":"Filtration and Separation"},"field":{"id":"https://openalex.org/fields/15","display_name":"Chemical Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T10532","display_name":"Molecular Sensors and Ion Detection","value":0.0002011,"subfield":{"id":"https://openalex.org/subfields/1607","display_name":"Spectroscopy"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10180","display_name":"Analytical chemistry methods development","value":0.0001804,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11936","display_name":"Chemical and Physical Properties in Aqueous Solutions","value":0.0001724,"subfield":{"id":"https://openalex.org/subfields/1506","display_name":"Filtration and Separation"},"field":{"id":"https://openalex.org/fields/15","display_name":"Chemical Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10903","display_name":"Porphyrin and Phthalocyanine Chemistry","value":0.0001612,"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/T10908","display_name":"Analytical Chemistry and Chromatography","value":0.0001284,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical 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":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.9892019033432007},{"id":"43617362","wikidata":"https://www.wikidata.org/wiki/Q170050","display_name":"Chromatography","score":0.825066328048706},{"id":"113196181","wikidata":"https://www.wikidata.org/wiki/Q485223","display_name":"Analytical Chemistry (journal)","score":0.6437576413154602},{"id":"179104552","wikidata":"https://www.wikidata.org/wiki/Q11165","display_name":"Inorganic chemistry","score":0.6263964772224426},{"id":"178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","score":0.43131959438323975}],"counts_by_year":[{"year":1967,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":1968,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1969,"works_count":10,"oa_works_count":9,"cited_by_count":0},{"year":1970,"works_count":8,"oa_works_count":6,"cited_by_count":0},{"year":1971,"works_count":9,"oa_works_count":7,"cited_by_count":0},{"year":1972,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1973,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1974,"works_count":4,"oa_works_count":2,"cited_by_count":0},{"year":1975,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":1976,"works_count":5,"oa_works_count":3,"cited_by_count":0},{"year":1977,"works_count":3,"oa_works_count":3,"cited_by_count":0},{"year":1978,"works_count":6,"oa_works_count":6,"cited_by_count":0},{"year":1979,"works_count":3,"oa_works_count":3,"cited_by_count":0},{"year":1980,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":1981,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1982,"works_count":6,"oa_works_count":6,"cited_by_count":0},{"year":1983,"works_count":6,"oa_works_count":5,"cited_by_count":0},{"year":1984,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1985,"works_count":5,"oa_works_count":4,"cited_by_count":0},{"year":1986,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":1987,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":1989,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1990,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1991,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":1992,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":1993,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":1994,"works_count":11,"oa_works_count":1,"cited_by_count":0},{"year":1995,"works_count":6,"oa_works_count":3,"cited_by_count":0},{"year":1996,"works_count":8,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":1998,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1999,"works_count":10,"oa_works_count":1,"cited_by_count":0},{"year":2000,"works_count":10,"oa_works_count":3,"cited_by_count":0},{"year":2001,"works_count":8,"oa_works_count":2,"cited_by_count":0},{"year":2002,"works_count":6,"oa_works_count":3,"cited_by_count":0},{"year":2003,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2004,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":2007,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2010,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2011,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":82},{"year":2013,"works_count":2,"oa_works_count":2,"cited_by_count":107},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":91},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":108},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":104},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":130},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":128},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":138},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":137},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":137},{"year":2022,"works_count":1,"oa_works_count":1,"cited_by_count":138},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":145},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":170},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":173},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":128}],"display_name_alternatives":["T Yotsuyanagi","T. YOTSUYANAGI","T. Yotsuyanagi","TAKAO YOTSUYANAGI","Takao YOTSUYANAGI","Takao Yotsuyanagi","Takao. Yotsuyanagi"],"block_key":"t yotsuyanagi","works_api_url":"https://api.openalex.org/works?filter=author.id:A5108205366","updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}
