| Project/Area Number |
23530471
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Business administration
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| Research Institution | Nagoya University (2013-2014)
Okayama University (2011-2012) |
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Principal Investigator |
INUZUKA Atsushi 名古屋大学, 経済学研究科(研究院), 准教授 (30377436)
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
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| Keywords | 特許情報 / 発明者 / ネットワーク / 技術フロー / 共同発明 / ネットワーク生成 / 取引ネットワーク / 特許引用 / 粘着性 / 系列 / 権利維持期間 / 潜在特許 / 顕在特許 / 生存関数 / ネットワーク分析 |
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| Outline of Final Research Achievements |
By focusing on inventors, I tried finding the mechanisms or conditions under which they are likely to create inventions efficiently. The main findings are as follows:
(1) From the analyses on activation of patents (status of the examination request, duration of the patent rights) or on their technology flow, notable differences among companies were found. (2) By creating co-invention networks among inventors, I analyzed the effect of network position or tie-forming strategy of inventors. The results showed that having in-direct ties has a positive effect on inventors’ productivity. (3) As a cross-part study, I tried combining empirical data and patent data in Japanese automobile industry and confirmed that suppliers’ performance is highly embedded in their network.
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