{"id":"https://openalex.org/A5111590723","orcid":null,"observed_orcids":[],"display_name":"Keijiro Tobimatsu","raw_author_names":["Keijiro Tobimatsu","Keijirou Tobimatsu","TOBIMATSU, Keijiro","Tobimatsu, Keijiro"],"full_name":"TOBIMATSU, Keijiro","works_count":14,"cited_by_count":182,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":8,"i10_index":8},"ids":{"openalex":"https://openalex.org/A5111590723","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I116465919","ror":"https://ror.org/01wc2tq75","display_name":"Kogakuin University","country_code":"JP","type":"education","lineage":["https://openalex.org/I116465919"]},"years":[2001,1995]},{"institution":{"id":"https://openalex.org/I120043899","ror":"https://ror.org/01zwcys39","display_name":"Meiji Gakuin University","country_code":"JP","type":"education","lineage":["https://openalex.org/I120043899"]},"years":[1989,1987]},{"institution":{"id":"https://openalex.org/I138728355","ror":"https://ror.org/01g5y5k24","display_name":"High Energy Accelerator Research Organization","country_code":"JP","type":"facility","lineage":["https://openalex.org/I1319490839","https://openalex.org/I138728355"]},"years":[1987,1985,1984]},{"institution":{"id":"https://openalex.org/I157090871","ror":"https://ror.org/05q041y44","display_name":"Kokugakuin University","country_code":"JP","type":"education","lineage":["https://openalex.org/I157090871"]},"years":[2001,1995]},{"institution":{"id":"https://openalex.org/I163770644","ror":"https://ror.org/02pc6pc55","display_name":"Okayama University","country_code":"JP","type":"education","lineage":["https://openalex.org/I163770644"]},"years":[1995]},{"institution":{"id":"https://openalex.org/I24254649","ror":"https://ror.org/057bx9y85","display_name":"Tsukuba University of Technology","country_code":"JP","type":"education","lineage":["https://openalex.org/I24254649"]},"years":[1990]},{"institution":{"id":"https://openalex.org/I3131019336","ror":"https://ror.org/0314zyy82","display_name":"Ferris University","country_code":"JP","type":"education","lineage":["https://openalex.org/I3131019336"]},"years":[1989]},{"institution":{"id":"https://openalex.org/I69740276","ror":"https://ror.org/00ws30h19","display_name":"Tokyo Metropolitan University","country_code":"JP","type":"education","lineage":["https://openalex.org/I69740276"]},"years":[1986]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T10048","display_name":"Particle physics theoretical and experimental studies","count":8,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"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/T10224","display_name":"Quantum Chromodynamics and Particle Interactions","count":8,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"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/T11044","display_name":"Particle Detector Development and Performance","count":6,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"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/T11216","display_name":"Radiation Detection and Scintillator Technologies","count":4,"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/T11683","display_name":"Quantum and Classical Electrodynamics","count":4,"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"}}],"topic_share":[{"id":"https://openalex.org/T11683","display_name":"Quantum and Classical Electrodynamics","value":1.61e-05,"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","value":1.61e-05,"subfield":{"id":"https://openalex.org/subfields/3105","display_name":"Instrumentation"},"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/T12404","display_name":"Mathematical Approximation and Integration","value":1.54e-05,"subfield":{"id":"https://openalex.org/subfields/2612","display_name":"Numerical Analysis"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11637","display_name":"Advanced Semiconductor Detectors and Materials","value":1.34e-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/T11044","display_name":"Particle Detector Development and Performance","value":1.2e-05,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.9571928977966309},{"id":"109214941","wikidata":"https://www.wikidata.org/wiki/Q18334","display_name":"Particle physics","score":0.6288246512413025},{"id":"185544564","wikidata":"https://www.wikidata.org/wiki/Q81197","display_name":"Nuclear physics","score":0.6046909689903259},{"id":"120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","score":0.590212345123291},{"id":"62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","score":0.2736189365386963}],"counts_by_year":[{"year":1984,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1985,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1986,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1987,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1989,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1990,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":5},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2017,"works_count":0,"oa_works_count":0,"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":5},{"year":2020,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2023,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":4}],"display_name_alternatives":["Keijiro Tobimatsu","Keijirou Tobimatsu","TOBIMATSU, Keijiro","Tobimatsu, Keijiro"],"block_key":"k tobimatsu","works_api_url":"https://api.openalex.org/works?filter=author.id:A5111590723","awards_count":0,"updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}