{"id":"https://openalex.org/A5113544151","orcid":"https://orcid.org/0000-0002-8172-7011","observed_orcids":["https://orcid.org/0000-0002-8172-7011"],"display_name":"Toyoki Kitayama","raw_author_names":["T. Kitayama","Toyoki KITAYAMA","Toyoki Kitayama"],"full_name":"Toyoki Kitayama","works_count":32,"cited_by_count":1126,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":12,"i10_index":13},"ids":{"openalex":"https://openalex.org/A5113544151","orcid":"https://orcid.org/0000-0002-8172-7011","observed_orcids":["https://orcid.org/0000-0002-8172-7011"]},"affiliations":[{"institution":{"id":"https://openalex.org/I2251713219","ror":"https://ror.org/00berct97","display_name":"NTT (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]},"years":[2003,1990,1989,1988,1984,1982,1981,1980,1975]},{"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":[2002,2001,2000,1997]}],"last_known_institutions":[{"id":"https://openalex.org/I2251713219","ror":"https://ror.org/00berct97","display_name":"NTT (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]}],"topics":[{"id":"https://openalex.org/T11338","display_name":"Advancements in Photolithography Techniques","count":13,"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/T10559","display_name":"Particle Accelerators and Free-Electron Lasers","count":9,"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/T11183","display_name":"Advanced X-ray Imaging Techniques","count":8,"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/T10107","display_name":"Ferroelectric and Piezoelectric Materials","count":7,"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/T11367","display_name":"Particle accelerators and beam dynamics","count":7,"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"}}],"topic_share":[{"id":"https://openalex.org/T11338","display_name":"Advancements in Photolithography Techniques","value":0.0001201,"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/T11183","display_name":"Advanced X-ray Imaging Techniques","value":6.01e-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/T10559","display_name":"Particle Accelerators and Free-Electron Lasers","value":4.93e-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/T12808","display_name":"Ferroelectric and Negative Capacitance Devices","value":4.35e-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/T12224","display_name":"Nanofabrication and Lithography Techniques","value":4.24e-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":0.9427142143249512},{"id":"204223013","wikidata":"https://www.wikidata.org/wiki/Q133036","display_name":"Lithography","score":0.8770608901977539},{"id":"120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","score":0.854962944984436},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.6583962440490723},{"id":"49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","score":0.5491875410079956}],"counts_by_year":[{"year":1968,"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":1980,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1981,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":1982,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1983,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1984,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1989,"works_count":7,"oa_works_count":1,"cited_by_count":0},{"year":1990,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":35},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":25},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":23},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":25},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":28},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":34},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":33},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":29},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":35},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":34},{"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":33},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":23},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":18},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":17}],"display_name_alternatives":["T. Kitayama","Toyoki KITAYAMA","Toyoki Kitayama"],"block_key":"t kitayama","works_api_url":"https://api.openalex.org/works?filter=author.id:A5113544151","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5113544151","updated_date":"2026-11-14T11:48:19","created_date":"2016-06-24T00:00:00"}