{"id":"https://openalex.org/A5113662230","orcid":null,"observed_orcids":[],"display_name":"Kiyohiko Sakamoto","raw_author_names":["K SAKAMOTO","K Sakamoto","K. Sakamoto","KIYOHIKO SAKAMOTO","Kiyohiko SAKAMOTO","Kiyohiko Sakamoto","Sakamoto, Kiyohiko"],"full_name":"Sakamoto, Kiyohiko","works_count":143,"cited_by_count":1766,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":22,"i10_index":43},"ids":{"openalex":"https://openalex.org/A5113662230","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I130416959","ror":"https://ror.org/041jswc25","display_name":"Central Research Institute of Electric Power Industry","country_code":"JP","type":"nonprofit","lineage":["https://openalex.org/I130416959"]},"years":[2005,2004]},{"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":[2009,1998,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988,1987,1985,1983,1974,1973]},{"institution":{"id":"https://openalex.org/I2801038905","ror":"https://ror.org/04am5a125","display_name":"Mount Vernon Hospital","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I2799786270","https://openalex.org/I2801038905"]},"years":[1971]},{"institution":{"id":"https://openalex.org/I4210135094","ror":"https://ror.org/037p13728","display_name":"Tohoku Rosai Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210135094"]},"years":[1995]},{"institution":{"id":"https://openalex.org/I4210139476","ror":"https://ror.org/042ser453","display_name":"Sendai City Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210139476"]},"years":[1996]},{"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":[1981,1980,1979,1978,1976,1975,1974]},{"institution":{"id":"https://openalex.org/I96036126","ror":"https://ror.org/02cgss904","display_name":"Kumamoto University","country_code":"JP","type":"education","lineage":["https://openalex.org/I96036126"]},"years":[1995]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T11359","display_name":"Effects of Radiation Exposure","count":57,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"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/T11176","display_name":"Radiation Therapy and Dosimetry","count":46,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory 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/T10358","display_name":"Advanced Radiotherapy Techniques","count":34,"subfield":{"id":"https://openalex.org/subfields/3108","display_name":"Radiation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10378","display_name":"Advanced MRI Techniques and Applications","count":13,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"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/T10619","display_name":"Esophageal Cancer Research and Treatment","count":12,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"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/T11176","display_name":"Radiation Therapy and Dosimetry","value":0.0001639,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory 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/T11359","display_name":"Effects of Radiation Exposure","value":0.0001474,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"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/T12747","display_name":"Moyamoya disease diagnosis and treatment","value":8.8e-05,"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/T10358","display_name":"Advanced Radiotherapy Techniques","value":7.97e-05,"subfield":{"id":"https://openalex.org/subfields/3108","display_name":"Radiation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13481","display_name":"Neurological diseases and metabolism","value":6.1e-05,"subfield":{"id":"https://openalex.org/subfields/2808","display_name":"Neurology"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9781968593597412},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.8881090879440308},{"id":"126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","score":0.703011155128479},{"id":"142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","score":0.5812712907791138},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.5158483386039734}],"counts_by_year":[{"year":1963,"works_count":5,"oa_works_count":3,"cited_by_count":0},{"year":1964,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1967,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1971,"works_count":1,"oa_works_count":0,"cited_by_count":22},{"year":1973,"works_count":3,"oa_works_count":0,"cited_by_count":50},{"year":1974,"works_count":1,"oa_works_count":1,"cited_by_count":19},{"year":1975,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1976,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1978,"works_count":2,"oa_works_count":0,"cited_by_count":11},{"year":1979,"works_count":2,"oa_works_count":0,"cited_by_count":10},{"year":1980,"works_count":4,"oa_works_count":1,"cited_by_count":14},{"year":1981,"works_count":2,"oa_works_count":0,"cited_by_count":14},{"year":1983,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":1985,"works_count":4,"oa_works_count":0,"cited_by_count":9},{"year":1986,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1987,"works_count":2,"oa_works_count":0,"cited_by_count":15},{"year":1988,"works_count":7,"oa_works_count":2,"cited_by_count":12},{"year":1989,"works_count":5,"oa_works_count":1,"cited_by_count":121},{"year":1990,"works_count":10,"oa_works_count":4,"cited_by_count":141},{"year":1991,"works_count":10,"oa_works_count":3,"cited_by_count":60},{"year":1992,"works_count":9,"oa_works_count":5,"cited_by_count":181},{"year":1993,"works_count":10,"oa_works_count":2,"cited_by_count":314},{"year":1994,"works_count":11,"oa_works_count":4,"cited_by_count":141},{"year":1995,"works_count":13,"oa_works_count":2,"cited_by_count":159},{"year":1996,"works_count":16,"oa_works_count":5,"cited_by_count":184},{"year":1997,"works_count":9,"oa_works_count":1,"cited_by_count":199},{"year":1998,"works_count":3,"oa_works_count":0,"cited_by_count":30},{"year":2003,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2004,"works_count":2,"oa_works_count":1,"cited_by_count":58},{"year":2005,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2013,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2016,"works_count":1,"oa_works_count":0,"cited_by_count":2}],"display_name_alternatives":["K SAKAMOTO","K Sakamoto","K. Sakamoto","KIYOHIKO SAKAMOTO","Kiyohiko SAKAMOTO","Kiyohiko Sakamoto","Sakamoto, Kiyohiko"],"block_key":"k sakamoto","works_api_url":"https://api.openalex.org/works?filter=author.id:A5113662230","updated_date":"2026-10-15T12:44:11","created_date":"2016-06-24T00:00:00"}