Identifying Technology Opportunities for Electric Motors of Railway Vehicles with Patent Analysis

Yunkoo Cho, Young Jae Han, Jumi Hwang, Jiwon Yu, Sangbaek Kim, Chulung Lee, Sugil Lee and Kyung Pyo Yi
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Yunkoo Cho: Adam International Patent & Law Office, 1313, 127 Beobwon-ro, Songpa-gu, Seoul 05836, Korea
Young Jae Han: Railroad Test & Certification Division, Korea Railroad Research Institute, 176 Cheoldobangmulgwan-ro, Uiwang-si 16105, Gyeonggi-do, Korea
Jumi Hwang: Department of Industrial Management Engineering, Korea University, 145 Anam-ro, Seongbuk, Seoul 02841, Korea
Jiwon Yu: Department of Industrial Management Engineering, Korea University, 145 Anam-ro, Seongbuk, Seoul 02841, Korea
Sangbaek Kim: Department of Packaging, Yonsei University, 1, Yeonsedae-gil, Heungeop-myeon, Wonju-si 26493, Gangwon-do, Korea
Chulung Lee: School of Industrial and Management Engineering, Korea University, 145 Anam-ro, Seongbuk, Seoul 02841, Korea
Sugil Lee: Smart Electrical & Signaling Division, Korea Railroad Research Institute, 176 Cheoldobangmulgwan-ro, Uiwang-si 16105, Gyeonggi-do, Korea
Kyung Pyo Yi: Smart Electrical & Signaling Division, Korea Railroad Research Institute, 176 Cheoldobangmulgwan-ro, Uiwang-si 16105, Gyeonggi-do, Korea

Sustainability, 2021, vol. 13, issue 5, 1-13

Abstract: An electric motor is a device that changes electrical energy into mechanical energy for railway vehicles. When developing the electric motor, it used to be developed simply for structures or control methods of the motor itself without considering convergence with other devices or technologies. However, as the railway vehicles become more advanced, technology development through convergence with other devices or technologies is spreading. Therefore, based on patent data related to the electric motors applied to the railway vehicles, this research aims to carry out technical forecasting for establishing research and development (R and D) direction for new technologies by predicting vacant technologies from the point of view of technology convergence. In other words, we studied how to find the vacant technologies in a field of convergence technology for the electric motor of the railway vehicles by analyzing the patent data. More specifically, we search the patents data associated with the electric motor of the railway vehicle that contain multiple IPC codes, and use multiple IPC codes to determine the field of convergence technology. In addition, we extract keywords from the patents data related to each of the determined convergence technologies and define the vacant technologies by interpreting the field of convergence technology and the extracted keywords.

Keywords: vacant technology; convergence technology; electric motor; patent analysis (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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