{"id":"https://openalex.org/A5070689170","orcid":"https://orcid.org/0000-0002-0773-7238","observed_orcids":["https://orcid.org/0000-0002-0773-7238"],"display_name":"Masaki Katayama","raw_author_names":["M Katayama","M. Katayama","Masaki Katayama","\u7247\u5c71\u660c\u7d00"],"full_name":"Masaki KATAYAMA","works_count":80,"cited_by_count":1992,"summary_stats":{"2yr_mean_citedness":7.4,"h_index":24,"i10_index":37},"ids":{"openalex":"https://openalex.org/A5070689170","orcid":"https://orcid.org/0000-0002-0773-7238","observed_orcids":["https://orcid.org/0000-0002-0773-7238"]},"affiliations":[{"institution":{"id":"https://openalex.org/I22299242","ror":"https://ror.org/02kpeqv85","display_name":"Kyoto University","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]},"years":[2015,2013,2012,2011]},{"institution":{"id":"https://openalex.org/I4210121381","ror":"https://ror.org/02k3rdd90","display_name":"Osaka Minami Medical Center","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210121381","https://openalex.org/I4210137409"]},"years":[2013]},{"institution":{"id":"https://openalex.org/I4210139503","ror":"https://ror.org/03pmd4250","display_name":"Shinko Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210139503"]},"years":[2024]},{"institution":{"id":"https://openalex.org/I4210151887","ror":"https://ror.org/05h4q5j46","display_name":"Osaka Red Cross Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I2799517759","https://openalex.org/I4210151887"]},"years":[2026,2025,2024,2023,2022,2021,2020,2019,2018,2017,2016]},{"institution":{"id":"https://openalex.org/I42405503","ror":"https://ror.org/024exxj48","display_name":"Gifu University","country_code":"JP","type":"education","lineage":["https://openalex.org/I42405503"]},"years":[2003,2002,2001]},{"institution":{"id":"https://openalex.org/I4405253421","ror":"https://ror.org/00n4rzk96","display_name":"Kurashiki Sweet Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4405253421"]},"years":[2025]}],"last_known_institutions":[{"id":"https://openalex.org/I4210151887","ror":"https://ror.org/05h4q5j46","display_name":"Osaka Red Cross Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I2799517759","https://openalex.org/I4210151887"]}],"topics":[{"id":"https://openalex.org/T10200","display_name":"Rheumatoid Arthritis Research and Therapies","count":67,"subfield":{"id":"https://openalex.org/subfields/2745","display_name":"Rheumatology"},"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/T11616","display_name":"Autoimmune and Inflammatory Disorders Research","count":43,"subfield":{"id":"https://openalex.org/subfields/2720","display_name":"Hematology"},"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/T12255","display_name":"Biosimilars and Bioanalytical Methods","count":23,"subfield":{"id":"https://openalex.org/subfields/2403","display_name":"Immunology"},"field":{"id":"https://openalex.org/fields/24","display_name":"Immunology and Microbiology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T13026","display_name":"Natural Compounds in Disease Treatment","count":15,"subfield":{"id":"https://openalex.org/subfields/2707","display_name":"Complementary and alternative medicine"},"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/T10308","display_name":"Systemic Lupus Erythematosus Research","count":10,"subfield":{"id":"https://openalex.org/subfields/2745","display_name":"Rheumatology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"topic_share":[{"id":"https://openalex.org/T11616","display_name":"Autoimmune and Inflammatory Disorders Research","value":0.0002938,"subfield":{"id":"https://openalex.org/subfields/2720","display_name":"Hematology"},"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/T12255","display_name":"Biosimilars and Bioanalytical Methods","value":0.0002692,"subfield":{"id":"https://openalex.org/subfields/2403","display_name":"Immunology"},"field":{"id":"https://openalex.org/fields/24","display_name":"Immunology and Microbiology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10200","display_name":"Rheumatoid Arthritis Research and Therapies","value":0.0001818,"subfield":{"id":"https://openalex.org/subfields/2745","display_name":"Rheumatology"},"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/T13792","display_name":"Morinda citrifolia extract uses","value":0.0001698,"subfield":{"id":"https://openalex.org/subfields/2707","display_name":"Complementary and alternative medicine"},"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/T13026","display_name":"Natural Compounds in Disease Treatment","value":0.0001356,"subfield":{"id":"https://openalex.org/subfields/2707","display_name":"Complementary and alternative medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9837057590484619},{"id":"2777575956","wikidata":"https://www.wikidata.org/wiki/Q187255","display_name":"Rheumatoid arthritis","score":0.885993480682373},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.7703080773353577},{"id":"72563966","wikidata":"https://www.wikidata.org/wiki/Q1303415","display_name":"Cohort","score":0.6791229844093323},{"id":"203014093","wikidata":"https://www.wikidata.org/wiki/Q101929","display_name":"Immunology","score":0.5917502045631409}],"counts_by_year":[{"year":2000,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":2002,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2003,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2011,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2012,"works_count":3,"oa_works_count":1,"cited_by_count":33},{"year":2013,"works_count":4,"oa_works_count":2,"cited_by_count":28},{"year":2014,"works_count":2,"oa_works_count":0,"cited_by_count":41},{"year":2015,"works_count":1,"oa_works_count":0,"cited_by_count":47},{"year":2016,"works_count":2,"oa_works_count":1,"cited_by_count":54},{"year":2017,"works_count":9,"oa_works_count":2,"cited_by_count":45},{"year":2018,"works_count":10,"oa_works_count":4,"cited_by_count":68},{"year":2019,"works_count":7,"oa_works_count":5,"cited_by_count":79},{"year":2020,"works_count":7,"oa_works_count":6,"cited_by_count":121},{"year":2021,"works_count":6,"oa_works_count":2,"cited_by_count":177},{"year":2022,"works_count":3,"oa_works_count":3,"cited_by_count":186},{"year":2023,"works_count":6,"oa_works_count":5,"cited_by_count":185},{"year":2024,"works_count":5,"oa_works_count":3,"cited_by_count":229},{"year":2025,"works_count":2,"oa_works_count":0,"cited_by_count":215},{"year":2026,"works_count":3,"oa_works_count":2,"cited_by_count":189}],"display_name_alternatives":["M Katayama","M. Katayama","Masaki Katayama","\u7247\u5c71\u660c\u7d00"],"block_key":"m katayama","works_api_url":"https://api.openalex.org/works?filter=author.id:A5070689170","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5070689170","updated_date":"2026-11-12T13:17:38","created_date":"2016-06-24T00:00:00"}
