{"id":"https://openalex.org/A5110104584","orcid":null,"observed_orcids":[],"display_name":"K. Yokoo","raw_author_names":["K Yokoo","K. YOKOO","K. Yokoo","K. Yokoob","KUNIYOSHI YOKOO","Kuniyoshi YOKOO","Kuniyoshi Yokoo","Kuniyoshi Yokoo Kuniyoshi Yokoo","Yokoo, K.","Yokoo, Kuniyoshi"],"full_name":"Kuniyoshi Yokoo Kuniyoshi Yokoo","works_count":143,"cited_by_count":1357,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":18,"i10_index":33},"ids":{"openalex":"https://openalex.org/A5110104584","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I113306721","ror":"https://ror.org/03t78wx29","display_name":"Hiroshima University","country_code":"JP","type":"education","lineage":["https://openalex.org/I113306721"]},"years":[1978]},{"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":[2002]},{"institution":{"id":"https://openalex.org/I139264467","ror":"https://ror.org/04h9pn542","display_name":"Seoul National University","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]},"years":[2002]},{"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":[2015,2014,2010,2009,2007,2006,2005,2004,2003,2002,2001,2000,1999,1998,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988,1985,1983,1982,1981,1980,1969]},{"institution":{"id":"https://openalex.org/I4210104143","ror":"https://ror.org/01pe1d703","display_name":"Advanced Telecommunications Research Institute International","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210104143"]},"years":[1998]},{"institution":{"id":"https://openalex.org/I4210133125","ror":"https://ror.org/033y26782","display_name":"Mitsubishi Electric (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I1306287861","https://openalex.org/I4210133125"]},"years":[2002]},{"institution":{"id":"https://openalex.org/I4405265838","ror":"https://ror.org/05vbgk961","display_name":"Ideal STAR Inc. (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4405265838"]},"years":[2012,2010,2008,2007,2006]},{"institution":{"id":"https://openalex.org/I4405274282","ror":"https://ror.org/01e49g081","display_name":"Idea International Co., Ltd. (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4405274282"]},"years":[2018]},{"institution":{"id":"https://openalex.org/I4405285984","ror":"https://ror.org/00vbrys56","display_name":"Research Institute of Electrical Communication, Tohoku University","country_code":"JP","type":"facility","lineage":["https://openalex.org/I201537933","https://openalex.org/I4405285984"]},"years":[2015,2014,2007,2006,2005,2004,2003,2002,2001,2000,1999,1998,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988,1985,1983,1982,1981,1980]},{"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":[1978]},{"institution":{"id":"https://openalex.org/I84884186","ror":"https://ror.org/01kj2bm70","display_name":"Newcastle University","country_code":"GB","type":"education","lineage":["https://openalex.org/I84884186"]},"years":[1976]}],"last_known_institutions":[{"id":"https://openalex.org/I4405274282","ror":"https://ror.org/01e49g081","display_name":"Idea International Co., Ltd. (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4405274282"]}],"topics":[{"id":"https://openalex.org/T11175","display_name":"Gyrotron and Vacuum Electronics Research","count":100,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"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/T13418","display_name":"Photocathodes and Microchannel Plates","count":57,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T11367","display_name":"Particle accelerators and beam dynamics","count":39,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T10559","display_name":"Particle Accelerators and Free-Electron Lasers","count":21,"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/T12039","display_name":"Electron and X-Ray Spectroscopy Techniques","count":20,"subfield":{"id":"https://openalex.org/subfields/2508","display_name":"Surfaces, Coatings and Films"},"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/T13418","display_name":"Photocathodes and Microchannel Plates","value":0.0008869,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T11175","display_name":"Gyrotron and Vacuum Electronics Research","value":0.0006157,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"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/T10559","display_name":"Particle Accelerators and Free-Electron Lasers","value":0.0001116,"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/T12760","display_name":"Laser Design and Applications","value":8.62e-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/T12039","display_name":"Electron and X-Ray Spectroscopy Techniques","value":5.73e-05,"subfield":{"id":"https://openalex.org/subfields/2508","display_name":"Surfaces, Coatings and Films"},"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":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.8893048763275146},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.8032057285308838},{"id":"49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","score":0.7840979695320129},{"id":"147120987","wikidata":"https://www.wikidata.org/wiki/Q2225","display_name":"Electron","score":0.7455815076828003},{"id":"62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","score":0.18826302886009216}],"counts_by_year":[{"year":1969,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1975,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1976,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1978,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1980,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1981,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1982,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1983,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1985,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":1989,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":1990,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1991,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1992,"works_count":7,"oa_works_count":1,"cited_by_count":0},{"year":1993,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":1994,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1996,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":9,"oa_works_count":3,"cited_by_count":0},{"year":1999,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":20,"oa_works_count":2,"cited_by_count":0},{"year":2003,"works_count":9,"oa_works_count":2,"cited_by_count":0},{"year":2004,"works_count":15,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":9,"oa_works_count":1,"cited_by_count":0},{"year":2006,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":2007,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2008,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2009,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":1,"oa_works_count":0,"cited_by_count":60},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":72},{"year":2014,"works_count":1,"oa_works_count":0,"cited_by_count":44},{"year":2015,"works_count":1,"oa_works_count":1,"cited_by_count":64},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":44},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":52},{"year":2018,"works_count":1,"oa_works_count":1,"cited_by_count":54},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":38},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":42},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":41},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":45},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":49},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":37},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":34},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":18}],"display_name_alternatives":["K Yokoo","K. YOKOO","K. Yokoo","K. Yokoob","KUNIYOSHI YOKOO","Kuniyoshi YOKOO","Kuniyoshi Yokoo","Kuniyoshi Yokoo Kuniyoshi Yokoo","Yokoo, K.","Yokoo, Kuniyoshi"],"block_key":"k yokoo","works_api_url":"https://api.openalex.org/works?filter=author.id:A5110104584","updated_date":"2026-11-03T12:34:24","created_date":"2016-06-24T00:00:00"}