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J-GLOBAL ID:201402230418084607   Reference number:14A0832121

Activity of Research and Development of Companies Estimated from a Change of the Number of Patent Applications in each Prefecture

都道府県別の特許出願件数の推移からみた企業の研究・開発活動の活発さの概況
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Volume: 10  Issue:Page: 32-41  Publication year: May. 31, 2014 
JST Material Number: L6269A  ISSN: 1349-6913  Document type: Article
Article type: 短報  Country of issue: Japan (JPN)  Language: JAPANESE (JA)
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Research and development  ,  Industrial property 
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