{"id":"https://openalex.org/A5083138906","orcid":"https://orcid.org/0009-0006-8450-6480","observed_orcids":["https://orcid.org/0009-0006-8450-6480"],"display_name":"Riku Okumura","raw_author_names":["Riku Okumura"],"full_name":"Riku Okumura","works_count":17,"cited_by_count":179,"summary_stats":{"2yr_mean_citedness":9.333333333333334,"h_index":8,"i10_index":7},"ids":{"openalex":"https://openalex.org/A5083138906","orcid":"https://orcid.org/0009-0006-8450-6480","observed_orcids":["https://orcid.org/0009-0006-8450-6480"]},"affiliations":[{"institution":{"id":"https://openalex.org/I139159150","ror":"https://ror.org/02dvjfw95","display_name":"University of Shiga Prefecture","country_code":"JP","type":"education","lineage":["https://openalex.org/I139159150"]},"years":[2025,2024,2023,2022]},{"institution":{"id":"https://openalex.org/I171494771","ror":"https://ror.org/01vvhy971","display_name":"Shiga University","country_code":"JP","type":"education","lineage":["https://openalex.org/I171494771"]},"years":[2025,2024,2023,2022]}],"last_known_institutions":[{"id":"https://openalex.org/I139159150","ror":"https://ror.org/02dvjfw95","display_name":"University of Shiga Prefecture","country_code":"JP","type":"education","lineage":["https://openalex.org/I139159150"]},{"id":"https://openalex.org/I171494771","ror":"https://ror.org/01vvhy971","display_name":"Shiga University","country_code":"JP","type":"education","lineage":["https://openalex.org/I171494771"]}],"topics":[{"id":"https://openalex.org/T10247","display_name":"Perovskite Materials and Applications","count":17,"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/T10045","display_name":"Organic Electronics and Photovoltaics","count":9,"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/T10107","display_name":"Ferroelectric and Piezoelectric Materials","count":8,"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/T10275","display_name":"2D Materials and Applications","count":6,"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/T10607","display_name":"Magnetic and transport properties of perovskites and related materials","count":5,"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"}}],"topic_share":[{"id":"https://openalex.org/T10247","display_name":"Perovskite Materials and Applications","value":0.0001463,"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/T10045","display_name":"Organic Electronics and Photovoltaics","value":3.08e-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/T10107","display_name":"Ferroelectric and Piezoelectric Materials","value":2.53e-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"}},{"id":"https://openalex.org/T10275","display_name":"2D Materials and Applications","value":2.24e-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"}},{"id":"https://openalex.org/T10607","display_name":"Magnetic and transport properties of perovskites and related materials","value":1.56e-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"}}],"x_concepts":[{"id":"155011858","wikidata":"https://www.wikidata.org/wiki/Q3036449","display_name":"Perovskite (structure)","score":0.8723554611206055},{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.7580755352973938},{"id":"179104552","wikidata":"https://www.wikidata.org/wiki/Q11165","display_name":"Inorganic chemistry","score":0.5936495065689087},{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.5397153496742249},{"id":"8010536","wikidata":"https://www.wikidata.org/wiki/Q160398","display_name":"Crystallography","score":0.4218020737171173}],"counts_by_year":[{"year":2022,"works_count":4,"oa_works_count":4,"cited_by_count":13},{"year":2023,"works_count":4,"oa_works_count":4,"cited_by_count":28},{"year":2024,"works_count":8,"oa_works_count":7,"cited_by_count":57},{"year":2025,"works_count":1,"oa_works_count":0,"cited_by_count":49},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":32}],"display_name_alternatives":["Riku Okumura"],"block_key":"r okumura","works_api_url":"https://api.openalex.org/works?filter=author.id:A5083138906","awards_count":0,"updated_date":"2026-10-31T12:29:50","created_date":"2022-02-09T00:00:00"}
