{"id":"https://openalex.org/A5111690337","orcid":null,"observed_orcids":[],"display_name":"Nobuo Ikekawa","raw_author_names":["NOBUO IKEKAWA","Nobuo IKEKAWA","Nobuo Ikekawa","Nobuo. Ikekawa","Nobuo. Ikekawa et al."],"full_name":"Nobuo Ikekawa","works_count":327,"cited_by_count":6541,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":39,"i10_index":207},"ids":{"openalex":"https://openalex.org/A5111690337","orcid":null,"observed_orcids":[]},"affiliations":[{"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":[2013,2001,1994,1993,1990,1989,1988,1987,1986,1985,1984,1983,1982,1981,1980,1979,1978,1977,1976,1975,1974,1973,1972,1970]},{"institution":{"id":"https://openalex.org/I114838220","ror":"https://ror.org/00dnbtf70","display_name":"Niigata University of Pharmacy and Medical and Life Sciences","country_code":"JP","type":"education","lineage":["https://openalex.org/I114838220"]},"years":[2019,2016,2012,2004,2003]},{"institution":{"id":"https://openalex.org/I1289024836","ror":"https://ror.org/02zdz1m23","display_name":"Ministry of Agriculture, Forestry and Fisheries","country_code":"JP","type":"government","lineage":["https://openalex.org/I1289024836"]},"years":[1966,1963]},{"institution":{"id":"https://openalex.org/I1337977289","ror":"https://ror.org/05x7v0b39","display_name":"Ministry of Agriculture and Forestry","country_code":"LA","type":"government","lineage":["https://openalex.org/I1337977289"]},"years":[1966]},{"institution":{"id":"https://openalex.org/I135310074","ror":"https://ror.org/01y2jtd41","display_name":"University of Wisconsin\u2013Madison","country_code":"US","type":"education","lineage":["https://openalex.org/I135310074"]},"years":[1985,1981,1975]},{"institution":{"id":"https://openalex.org/I135598925","ror":"https://ror.org/00p4k0j84","display_name":"Kyushu University","country_code":"JP","type":"education","lineage":["https://openalex.org/I135598925"]},"years":[1965,1955]},{"institution":{"id":"https://openalex.org/I201954162","ror":"https://ror.org/02v1sf687","display_name":"University of Kochi","country_code":"JP","type":"education","lineage":["https://openalex.org/I201954162","https://openalex.org/I4405286278"]},"years":[1992]},{"institution":{"id":"https://openalex.org/I23923803","ror":"https://ror.org/03yghzc09","display_name":"University of Exeter","country_code":"GB","type":"education","lineage":["https://openalex.org/I23923803"]},"years":[1992]},{"institution":{"id":"https://openalex.org/I31784960","ror":"https://ror.org/04nt8b154","display_name":"Fukuoka University","country_code":"JP","type":"education","lineage":["https://openalex.org/I31784960"]},"years":[1965]},{"institution":{"id":"https://openalex.org/I36243813","ror":"https://ror.org/059yx9a68","display_name":"Universidad Nacional de Colombia","country_code":"CO","type":"education","lineage":["https://openalex.org/I36243813"]},"years":[1983]},{"institution":{"id":"https://openalex.org/I4210097840","ror":"https://ror.org/014aeyd41","display_name":"Asahi Breweries (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210097840"]},"years":[1986]},{"institution":{"id":"https://openalex.org/I4210108598","ror":"https://ror.org/01xdq1k91","display_name":"Japan Tobacco (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210108598"]},"years":[1986]},{"institution":{"id":"https://openalex.org/I4210110652","ror":"https://ror.org/01sjwvz98","display_name":"RIKEN","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210110652"]},"years":[1969,1968,1967,1966,1963,1962]},{"institution":{"id":"https://openalex.org/I4210112820","ror":"https://ror.org/022syn853","display_name":"Shanghai Institute of Materia Medica","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210112820"]},"years":[1984]},{"institution":{"id":"https://openalex.org/I4210122276","ror":"https://ror.org/02jg1fa85","display_name":"Suntory (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210122276"]},"years":[1981]},{"institution":{"id":"https://openalex.org/I4387155384","ror":"https://ror.org/05szqz470","display_name":"National Institute of Radiological Sciences","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4387155384"]},"years":[1978,1976]},{"institution":{"id":"https://openalex.org/I4405287541","ror":"https://ror.org/05fd4mq57","display_name":"National Cancer Center Research Institute","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210087348","https://openalex.org/I4405287541"]},"years":[1986]},{"institution":{"id":"https://openalex.org/I4405287617","ror":"https://ror.org/05pbkxj36","display_name":"Institute for Radiological Science","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210114217","https://openalex.org/I4405287617"]},"years":[1978,1976]},{"institution":{"id":"https://openalex.org/I48840829","ror":"https://ror.org/048nxq511","display_name":"Tokyo University of Marine Science and Technology","country_code":"JP","type":"education","lineage":["https://openalex.org/I48840829"]},"years":[1972]},{"institution":{"id":"https://openalex.org/I63030401","ror":"https://ror.org/022yhjq53","display_name":"Meisei University","country_code":"JP","type":"education","lineage":["https://openalex.org/I63030401"]},"years":[1990]},{"institution":{"id":"https://openalex.org/I71395657","ror":"https://ror.org/04ww21r56","display_name":"Niigata University","country_code":"JP","type":"education","lineage":["https://openalex.org/I71395657"]},"years":[2004]},{"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":[1982,1969,1966,1958,1951]},{"institution":{"id":"https://openalex.org/I77063589","ror":"https://ror.org/01xxp6985","display_name":"K\u014dchi University","country_code":"JP","type":"education","lineage":["https://openalex.org/I77063589"]},"years":[1992]},{"institution":{"id":"https://openalex.org/I79746392","ror":"https://ror.org/04v5axh10","display_name":"IRYO Sosei University","country_code":"JP","type":"education","lineage":["https://openalex.org/I79746392"]},"years":[1993,1992,1991,1990,1989,1988]},{"institution":{"id":"https://openalex.org/I84653119","ror":"https://ror.org/05bxb3784","display_name":"Academia Sinica","country_code":"TW","type":"facility","lineage":["https://openalex.org/I84653119"]},"years":[1984]},{"institution":{"id":"https://openalex.org/I84776176","ror":"https://ror.org/03k8der79","display_name":"Shimadzu (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I84776176"]},"years":[1972]},{"institution":{"id":"https://openalex.org/I8721504","ror":"https://ror.org/02xjxgz53","display_name":"Joetsu University of Education","country_code":"JP","type":"education","lineage":["https://openalex.org/I8721504"]},"years":[1992,1986]},{"institution":{"id":"https://openalex.org/I8961855","ror":"https://ror.org/01tmp8f25","display_name":"Universidad Nacional Aut\u00f3noma de M\u00e9xico","country_code":"MX","type":"education","lineage":["https://openalex.org/I8961855"]},"years":[1975]},{"institution":{"id":"https://openalex.org/I92614990","ror":"https://ror.org/00qg0kr10","display_name":"Tokyo University of Agriculture and Technology","country_code":"JP","type":"education","lineage":["https://openalex.org/I92614990"]},"years":[1984]}],"last_known_institutions":[{"id":"https://openalex.org/I114838220","ror":"https://ror.org/00dnbtf70","display_name":"Niigata University of Pharmacy and Medical and Life Sciences","country_code":"JP","type":"education","lineage":["https://openalex.org/I114838220"]}],"topics":[{"id":"https://openalex.org/T13736","display_name":"Steroid Chemistry and Biochemistry","count":179,"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"}},{"id":"https://openalex.org/T10277","display_name":"Vitamin D Research Studies","count":68,"subfield":{"id":"https://openalex.org/subfields/2712","display_name":"Endocrinology, Diabetes and Metabolism"},"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/T11618","display_name":"Cholesterol and Lipid Metabolism","count":44,"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/T11882","display_name":"Plant biochemistry and biosynthesis","count":42,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"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/T10908","display_name":"Analytical Chemistry and Chromatography","count":41,"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"}}],"topic_share":[{"id":"https://openalex.org/T13736","display_name":"Steroid Chemistry and Biochemistry","value":0.0013481,"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"}},{"id":"https://openalex.org/T10277","display_name":"Vitamin D Research Studies","value":0.0004067,"subfield":{"id":"https://openalex.org/subfields/2712","display_name":"Endocrinology, Diabetes and Metabolism"},"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/T14048","display_name":"Silkworms and Sericulture Research","value":0.0004034,"subfield":{"id":"https://openalex.org/subfields/1109","display_name":"Insect Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T13004","display_name":"Vitamin K Research Studies","value":0.0003978,"subfield":{"id":"https://openalex.org/subfields/2916","display_name":"Nutrition and Dietetics"},"field":{"id":"https://openalex.org/fields/29","display_name":"Nursing"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11385","display_name":"Natural product bioactivities and synthesis","value":0.0003975,"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":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.9824590682983398},{"id":"86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","score":0.8850672245025635},{"id":"71240020","wikidata":"https://www.wikidata.org/wiki/Q186011","display_name":"Stereochemistry","score":0.7758082151412964},{"id":"55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","score":0.6326273083686829},{"id":"178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","score":0.5743154883384705}],"counts_by_year":[{"year":1951,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1953,"works_count":4,"oa_works_count":4,"cited_by_count":0},{"year":1954,"works_count":3,"oa_works_count":3,"cited_by_count":0},{"year":1955,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1956,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":1958,"works_count":6,"oa_works_count":6,"cited_by_count":0},{"year":1959,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1960,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1961,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":1962,"works_count":3,"oa_works_count":3,"cited_by_count":0},{"year":1963,"works_count":6,"oa_works_count":5,"cited_by_count":0},{"year":1964,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1965,"works_count":5,"oa_works_count":4,"cited_by_count":0},{"year":1966,"works_count":10,"oa_works_count":7,"cited_by_count":0},{"year":1967,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":1968,"works_count":5,"oa_works_count":2,"cited_by_count":0},{"year":1969,"works_count":4,"oa_works_count":2,"cited_by_count":0},{"year":1970,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1971,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1972,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1973,"works_count":10,"oa_works_count":7,"cited_by_count":0},{"year":1974,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1975,"works_count":15,"oa_works_count":3,"cited_by_count":0},{"year":1976,"works_count":13,"oa_works_count":4,"cited_by_count":0},{"year":1977,"works_count":6,"oa_works_count":1,"cited_by_count":0},{"year":1978,"works_count":5,"oa_works_count":2,"cited_by_count":0},{"year":1979,"works_count":11,"oa_works_count":5,"cited_by_count":0},{"year":1980,"works_count":13,"oa_works_count":2,"cited_by_count":0},{"year":1981,"works_count":17,"oa_works_count":7,"cited_by_count":0},{"year":1982,"works_count":17,"oa_works_count":7,"cited_by_count":0},{"year":1983,"works_count":20,"oa_works_count":10,"cited_by_count":0},{"year":1984,"works_count":27,"oa_works_count":15,"cited_by_count":0},{"year":1985,"works_count":13,"oa_works_count":3,"cited_by_count":0},{"year":1986,"works_count":18,"oa_works_count":13,"cited_by_count":0},{"year":1987,"works_count":11,"oa_works_count":7,"cited_by_count":0},{"year":1988,"works_count":12,"oa_works_count":9,"cited_by_count":0},{"year":1989,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":1990,"works_count":9,"oa_works_count":0,"cited_by_count":0},{"year":1991,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":1992,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":1993,"works_count":5,"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":1,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2004,"works_count":1,"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":2,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":1,"oa_works_count":1,"cited_by_count":93},{"year":2013,"works_count":1,"oa_works_count":1,"cited_by_count":136},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":112},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":93},{"year":2016,"works_count":3,"oa_works_count":1,"cited_by_count":86},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":128},{"year":2018,"works_count":1,"oa_works_count":0,"cited_by_count":86},{"year":2019,"works_count":2,"oa_works_count":0,"cited_by_count":118},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":99},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":118},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":104},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":61},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":99},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":66},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":51}],"display_name_alternatives":["NOBUO IKEKAWA","Nobuo IKEKAWA","Nobuo Ikekawa","Nobuo. Ikekawa","Nobuo. Ikekawa et al."],"block_key":"n ikekawa","works_api_url":"https://api.openalex.org/works?filter=author.id:A5111690337","updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}