{"id":"https://openalex.org/A5109354575","orcid":null,"observed_orcids":[],"display_name":"Hayakawa","raw_author_names":["Hayakawa"],"full_name":"Hayakawa","works_count":48,"cited_by_count":126,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":6,"i10_index":3},"ids":{"openalex":"https://openalex.org/A5109354575","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":[1988]},{"institution":{"id":"https://openalex.org/I201933988","ror":"https://ror.org/04j7mzp05","display_name":"Kagawa University","country_code":"JP","type":"education","lineage":["https://openalex.org/I201933988"]},"years":[2011]},{"institution":{"id":"https://openalex.org/I20529979","ror":"https://ror.org/02x73b849","display_name":"University of Electro-Communications","country_code":"JP","type":"education","lineage":["https://openalex.org/I20529979"]},"years":[2007,2005,2003,1997]},{"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":[1999]},{"institution":{"id":"https://openalex.org/I4405286505","ror":"https://ror.org/02b98rw12","display_name":"Marine Biosystems Research Center, Chiba University","country_code":"JP","type":"facility","lineage":["https://openalex.org/I159385669","https://openalex.org/I4405286505"]},"years":[2003]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T10787","display_name":"Lightning and Electromagnetic Phenomena","count":6,"subfield":{"id":"https://openalex.org/subfields/1902","display_name":"Atmospheric Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12424","display_name":"Earthquake Detection and Analysis","count":6,"subfield":{"id":"https://openalex.org/subfields/1908","display_name":"Geophysics"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10159","display_name":"Ionosphere and magnetosphere dynamics","count":5,"subfield":{"id":"https://openalex.org/subfields/1912","display_name":"Space and Planetary Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10093","display_name":"Nuclear physics research studies","count":4,"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/T10323","display_name":"Analog and Mixed-Signal Circuit Design","count":4,"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"}}],"topic_share":[{"id":"https://openalex.org/T12424","display_name":"Earthquake Detection and Analysis","value":7.05e-05,"subfield":{"id":"https://openalex.org/subfields/1908","display_name":"Geophysics"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10787","display_name":"Lightning and Electromagnetic Phenomena","value":3.19e-05,"subfield":{"id":"https://openalex.org/subfields/1902","display_name":"Atmospheric Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13325","display_name":"Dye analysis and toxicity","value":2.48e-05,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12570","display_name":"Photopolymerization techniques and applications","value":2.34e-05,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13458","display_name":"Astronomical and nuclear sciences","value":1.93e-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":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.8414596319198608},{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.6635130643844604},{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.6343453526496887},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.541744589805603},{"id":"127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","score":0.37465977668762207}],"counts_by_year":[{"year":1978,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1982,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1987,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1988,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1989,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1997,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1999,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":2004,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2006,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2007,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2009,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":7,"oa_works_count":0,"cited_by_count":0},{"year":2011,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":3,"oa_works_count":0,"cited_by_count":8},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":11},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":9},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2016,"works_count":1,"oa_works_count":0,"cited_by_count":4},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2018,"works_count":2,"oa_works_count":0,"cited_by_count":3},{"year":2019,"works_count":2,"oa_works_count":0,"cited_by_count":7},{"year":2020,"works_count":2,"oa_works_count":0,"cited_by_count":8},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":5},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":1}],"display_name_alternatives":["Hayakawa"],"block_key":"hayakawa","works_api_url":"https://api.openalex.org/works?filter=author.id:A5109354575","updated_date":"2026-11-08T12:57:04","created_date":"2016-06-24T00:00:00"}