{"id":"https://openalex.org/A5111455501","orcid":null,"observed_orcids":[],"display_name":"Kumpei Kobayashi","raw_author_names":["K. Kobayashi","Kumpei KOBAYASHI","Kumpei Kobay-ashi","Kumpei Kobayashi"],"full_name":"KOBAYASHI, Kumpei","works_count":15,"cited_by_count":450,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":7,"i10_index":7},"ids":{"openalex":"https://openalex.org/A5111455501","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I1292669757","ror":"https://ror.org/0326v3z14","display_name":"Toshiba (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I1292669757"]},"years":[2020,2017,2016,2015]},{"institution":{"id":"https://openalex.org/I15807432","ror":"https://ror.org/02cf1je33","display_name":"Osaka Prefecture University","country_code":"JP","type":"education","lineage":["https://openalex.org/I15807432","https://openalex.org/I4387152983"]},"years":[2008,2005,2004,2003]},{"institution":{"id":"https://openalex.org/I4210116533","ror":"https://ror.org/01tqja591","display_name":"Morinaga (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210116533"]},"years":[1991]},{"institution":{"id":"https://openalex.org/I4405272692","ror":"https://ror.org/04hy75g65","display_name":"Morinaga Milk Industry Co., Ltd. (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4405272692"]},"years":[1991]},{"institution":{"id":"https://openalex.org/I79576946","ror":"https://ror.org/00b30xv10","display_name":"University of Pennsylvania","country_code":"US","type":"education","lineage":["https://openalex.org/I79576946"]},"years":[1989,1976,1974]}],"last_known_institutions":[{"id":"https://openalex.org/I1292669757","ror":"https://ror.org/0326v3z14","display_name":"Toshiba (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I1292669757"]}],"topics":[{"id":"https://openalex.org/T10024","display_name":"TiO2 Photocatalysis and Solar Cells","count":6,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10078","display_name":"Advanced Photocatalysis Techniques","count":3,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10018","display_name":"Advancements in Battery Materials","count":2,"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/T10179","display_name":"Supercapacitor Materials and Fabrication","count":2,"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"}},{"id":"https://openalex.org/T10210","display_name":"Advanced oxidation water treatment","count":2,"subfield":{"id":"https://openalex.org/subfields/2312","display_name":"Water Science and Technology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T12915","display_name":"Biochemical Acid Research Studies","value":2.34e-05,"subfield":{"id":"https://openalex.org/subfields/1303","display_name":"Biochemistry"},"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/T12840","display_name":"Renal function and acid-base balance","value":1.66e-05,"subfield":{"id":"https://openalex.org/subfields/2727","display_name":"Nephrology"},"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/T12340","display_name":"Anodic Oxide Films and Nanostructures","value":1.64e-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/T10024","display_name":"TiO2 Photocatalysis and Solar Cells","value":1.61e-05,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10590","display_name":"Chalcogenide Semiconductor Thin Films","value":1.41e-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"}}],"x_concepts":[{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.8751534223556519},{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.6175486445426941},{"id":"171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","score":0.5489603877067566},{"id":"127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","score":0.17878037691116333},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.08748462796211243}],"counts_by_year":[{"year":1974,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1976,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1989,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1991,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2008,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":5},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2014,"works_count":2,"oa_works_count":0,"cited_by_count":3},{"year":2015,"works_count":1,"oa_works_count":0,"cited_by_count":3},{"year":2016,"works_count":2,"oa_works_count":0,"cited_by_count":2},{"year":2017,"works_count":1,"oa_works_count":1,"cited_by_count":4},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":5},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2020,"works_count":1,"oa_works_count":1,"cited_by_count":4},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":12},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":26},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":13},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":13},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":24},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":9}],"display_name_alternatives":["K. Kobayashi","Kumpei KOBAYASHI","Kumpei Kobay-ashi","Kumpei Kobayashi"],"block_key":"k kobayashi","works_api_url":"https://api.openalex.org/works?filter=author.id:A5111455501","updated_date":"2026-11-04T11:47:51","created_date":"2016-06-24T00:00:00"}