{"id":"https://openalex.org/A5081500335","orcid":"https://orcid.org/0000-0001-7835-4042","observed_orcids":["https://orcid.org/0000-0001-7835-4042"],"display_name":"Tsutomu Shimizu-Iwayama","raw_author_names":["Iwayama, T.S.","Iwayama, Tsutomu","Shimizu-Iwayama Tsutomu","T S Iwayama","T Shimizu-Iwayama","T. S. Iwayama","T. Shimizu-Iwayama","T.S Iwayama","T.S. Iwayama","Tsutomu IWAYAMA","Tsutomu Iwayama","Tsutomu Iwayama-Shimizu","Tsutomu S. Iwayama","Tsutomu Shimizu-Iwayama"],"full_name":"Tsutomu Shimizu-Iwayama","works_count":60,"cited_by_count":1916,"summary_stats":{"2yr_mean_citedness":1.0,"h_index":16,"i10_index":22},"ids":{"openalex":"https://openalex.org/A5081500335","orcid":"https://orcid.org/0000-0001-7835-4042","observed_orcids":["https://orcid.org/0000-0001-7835-4042"]},"affiliations":[{"institution":{"id":"https://openalex.org/I130137553","ror":"https://ror.org/0172hvg27","display_name":"Aichi University","country_code":"JP","type":"education","lineage":["https://openalex.org/I130137553"]},"years":[1994]},{"institution":{"id":"https://openalex.org/I156900350","ror":"https://ror.org/049rjvf68","display_name":"Nakanihon Automotive College","country_code":"JP","type":"education","lineage":["https://openalex.org/I156900350"]},"years":[1990]},{"institution":{"id":"https://openalex.org/I39018119","ror":"https://ror.org/03m964n84","display_name":"Aichi University of Education","country_code":"JP","type":"education","lineage":["https://openalex.org/I39018119"]},"years":[2026,2025,2024,2023,2022,2021,2020,2011,2010,2009,2007,2006,2005,2003,2002,2001,2000,1999,1998,1997,1996,1995,1994,1993]},{"institution":{"id":"https://openalex.org/I4210110652","ror":"https://ror.org/01sjwvz98","display_name":"RIKEN","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210110652"]},"years":[2005]},{"institution":{"id":"https://openalex.org/I4210131458","ror":"https://ror.org/02xkqh785","display_name":"Nagoya Industrial Science Research Institute","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210131458"]},"years":[1995]},{"institution":{"id":"https://openalex.org/I45129253","ror":"https://ror.org/02jx3x895","display_name":"University College London","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I45129253"]},"years":[1999]}],"last_known_institutions":[{"id":"https://openalex.org/I39018119","ror":"https://ror.org/03m964n84","display_name":"Aichi University of Education","country_code":"JP","type":"education","lineage":["https://openalex.org/I39018119"]}],"topics":[{"id":"https://openalex.org/T11169","display_name":"Silicon Nanostructures and Photoluminescence","count":41,"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/T10624","display_name":"Silicon and Solar Cell Technologies","count":33,"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/T10097","display_name":"Luminescence Properties of Advanced Materials","count":15,"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/T10299","display_name":"Photonic and Optical Devices","count":15,"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/T10478","display_name":"Diamond and Carbon-based Materials Research","count":9,"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"}}],"topic_share":[{"id":"https://openalex.org/T11169","display_name":"Silicon Nanostructures and Photoluminescence","value":0.0003898,"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/T10624","display_name":"Silicon and Solar Cell Technologies","value":0.0001388,"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/T10478","display_name":"Diamond and Carbon-based Materials Research","value":6.9e-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/T10097","display_name":"Luminescence Properties of Advanced Materials","value":5.22e-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/T10299","display_name":"Photonic and Optical Devices","value":4.91e-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":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.958181619644165},{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.8648592233657837},{"id":"49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","score":0.5987995862960815},{"id":"171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","score":0.5289487838745117},{"id":"178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","score":0.17049750685691833}],"counts_by_year":[{"year":1990,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1993,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1994,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":1996,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1999,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":2000,"works_count":3,"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":2,"oa_works_count":1,"cited_by_count":0},{"year":2003,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":3,"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":3,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2010,"works_count":3,"oa_works_count":3,"cited_by_count":0},{"year":2011,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":60},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":50},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":33},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":31},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":40},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":29},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":20},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":20},{"year":2020,"works_count":1,"oa_works_count":1,"cited_by_count":19},{"year":2021,"works_count":3,"oa_works_count":1,"cited_by_count":11},{"year":2022,"works_count":3,"oa_works_count":2,"cited_by_count":10},{"year":2023,"works_count":3,"oa_works_count":1,"cited_by_count":21},{"year":2024,"works_count":3,"oa_works_count":2,"cited_by_count":22},{"year":2025,"works_count":1,"oa_works_count":1,"cited_by_count":23},{"year":2026,"works_count":1,"oa_works_count":1,"cited_by_count":22}],"display_name_alternatives":["Iwayama, T.S.","Iwayama, Tsutomu","Shimizu-Iwayama Tsutomu","T S Iwayama","T Shimizu-Iwayama","T. S. Iwayama","T. Shimizu-Iwayama","T.S Iwayama","T.S. Iwayama","Tsutomu IWAYAMA","Tsutomu Iwayama","Tsutomu Iwayama-Shimizu","Tsutomu S. Iwayama","Tsutomu Shimizu-Iwayama"],"block_key":"t shimizu-iwayama","works_api_url":"https://api.openalex.org/works?filter=author.id:A5081500335","awards_count":4,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5081500335","updated_date":"2026-11-10T14:30:39","created_date":"2016-06-24T00:00:00"}