{"id":"https://openalex.org/A5076216455","orcid":null,"observed_orcids":[],"display_name":"Ikuo Iijima","raw_author_names":["I. IIJIMA","I. Iijima","IKUO IIJIMA","Ikuo IIJIMA","Ikuo Iijima"],"full_name":"Ikuo IIJIMA","works_count":52,"cited_by_count":616,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":10,"i10_index":12},"ids":{"openalex":"https://openalex.org/A5076216455","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I1299303238","ror":"https://ror.org/01cwqze88","display_name":"National Institutes of Health","country_code":"US","type":"government","lineage":["https://openalex.org/I1299022934","https://openalex.org/I1299303238"]},"years":[1978,1977]},{"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":[1969]},{"institution":{"id":"https://openalex.org/I60134161","ror":"https://ror.org/04chrp450","display_name":"Nagoya University","country_code":"JP","type":"education","lineage":["https://openalex.org/I60134161"]},"years":[1969]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T13649","display_name":"Advanced Synthetic Organic Chemistry","count":27,"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/T13859","display_name":"Organic Chemistry Synthesis Methods","count":14,"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/T12649","display_name":"Alkaloids: synthesis and pharmacology","count":13,"subfield":{"id":"https://openalex.org/subfields/3004","display_name":"Pharmacology"},"field":{"id":"https://openalex.org/fields/30","display_name":"Pharmacology, Toxicology and Pharmaceutics"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T13208","display_name":"Synthesis of heterocyclic compounds","count":13,"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/T13188","display_name":"Synthesis and bioactivity of alkaloids","count":12,"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"}}],"topic_share":[{"id":"https://openalex.org/T13188","display_name":"Synthesis and bioactivity of alkaloids","value":0.0002547,"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/T13971","display_name":"Synthesis and Biological Activity","value":0.0001637,"subfield":{"id":"https://openalex.org/subfields/1306","display_name":"Cancer Research"},"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/T12649","display_name":"Alkaloids: synthesis and pharmacology","value":0.0001464,"subfield":{"id":"https://openalex.org/subfields/3004","display_name":"Pharmacology"},"field":{"id":"https://openalex.org/fields/30","display_name":"Pharmacology, Toxicology and Pharmaceutics"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T13230","display_name":"Synthesis and Reactivity of Heterocycles","value":0.0001421,"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/T13649","display_name":"Advanced Synthetic Organic Chemistry","value":9.8e-05,"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":0.9892169833183289},{"id":"71240020","wikidata":"https://www.wikidata.org/wiki/Q186011","display_name":"Stereochemistry","score":0.6804289817810059},{"id":"155647269","wikidata":"https://www.wikidata.org/wiki/Q243455","display_name":"Medicinal chemistry","score":0.6354462504386902},{"id":"178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","score":0.4726150333881378},{"id":"55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","score":0.41672781109809875}],"counts_by_year":[{"year":1965,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1966,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1967,"works_count":1,"oa_works_count":1,"cited_by_count":6},{"year":1969,"works_count":3,"oa_works_count":0,"cited_by_count":39},{"year":1970,"works_count":1,"oa_works_count":0,"cited_by_count":6},{"year":1971,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1972,"works_count":3,"oa_works_count":1,"cited_by_count":23},{"year":1973,"works_count":4,"oa_works_count":0,"cited_by_count":14},{"year":1974,"works_count":4,"oa_works_count":0,"cited_by_count":10},{"year":1975,"works_count":1,"oa_works_count":1,"cited_by_count":3},{"year":1976,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1977,"works_count":5,"oa_works_count":3,"cited_by_count":215},{"year":1978,"works_count":9,"oa_works_count":2,"cited_by_count":219},{"year":1979,"works_count":3,"oa_works_count":0,"cited_by_count":11},{"year":1980,"works_count":3,"oa_works_count":1,"cited_by_count":1},{"year":1987,"works_count":6,"oa_works_count":6,"cited_by_count":31},{"year":1988,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":1,"oa_works_count":1,"cited_by_count":38}],"display_name_alternatives":["I. IIJIMA","I. Iijima","IKUO IIJIMA","Ikuo IIJIMA","Ikuo Iijima"],"block_key":"i iijima","works_api_url":"https://api.openalex.org/works?filter=author.id:A5076216455","updated_date":"2026-10-20T12:29:05","created_date":"2016-06-24T00:00:00"}