The objective of this study is to investigate patent trends of Daegu city which tries to introduce environment friendly energy and to develop new technology or new industry sprung from technology convergence on smart decentralized energy technology and other technologies. After applying network analysis to corresponding groups of technology or industry convergence, strategy for future energy convergence industry is provided. Patent data applied in Daegu city area are used to obtain research goal. The technology which contains several IPC codes (IPC Co-occurrence) is considered as a convergence technology. Path finder network analysis is used for visualizing and grouping by using IPC codes.
The analysis results categorized 13 groups in energy convergence industry and reclassified them into 3 cluster groups (Smart Energy Product Production Technology Group, Smart Energy Convergence Supply Technology Group, Smart Energy Indirect Application Technology Group) considering the technical characteristics and policy direction. Also, energy industry has evolved rapidly by technological convergence with other industries. Especially, it has been converged with IT industry, and there is a trend that energy industry will be converged with service industry and manufacturing industry such as textile, automobile parts, mechanics, and logistics by employing infrastructure as well as network.
Based on the research results on core patent technology, convergence technology and inter-industry analysis, the direction of core technology research and development as well as evolution on decentralized energy industry is identified. By using research design and methodology in this study, the trend of convergence technology is investigated based on objective data (patent data). Above all, we can easily confirm the core technology in the local industry by analyzing the industrial competitiveness in the macro level. Based on this, we can identify convergence industry and technology by performing the technological convergence analysis in the micro level. 1

1. 서 론
 2. 이론적 배경
  2.1 기술융합관련 연구
  2.2 특허정보를 활용한 기술융합 연구
 3. 연구방법론
  3.1 산업코드와 특허코드 간 연계
  3.2 데이터 수집 및 전처리
  3.3 네트워크 분석 방법
 4. 실증분석
  4.1 스마트분산형에너지산업 기술특허분석
  4.2 기술융합분석 결과
 5. 결론 및 토의
  5.1 연구결과의 요약
  5.2 시사점 및 한계점
 References

• 한장협(대구경북연구원) | Jang-Hyup Han
• 나중규(대구경북연구원) | Jung-Gyu Na
• 김채복(경북대학교 경영학부) | Chae-Bogk Kim Corresponding Author