The analysis of research and development efficiency in Japanese companies in the field of fuel cells using patent data

R and D Management

Volumn 39, Issue 3, 2009, Pages 291-304

  Sakata, Junichi ^a   Suzuki, Katsuhiro ^a   Hosoya, Jun ^a  

^a WASEDA UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 65649130092     PISSN: 00336807     EISSN: 14679310     Source Type: Journal    
DOI: 10.1111/j.1467-9310.2009.00555.x     Document Type: Article

References (8)

1. Comanor, W.S. Scherer, F.M. (1969) Patent statistics as a measure of technical change. The Journal of Political Economy, 77, 3, 392 398.
2. Council for Science and Technology Policy JAPAN (2005) 'Japan's Science and Technology Basic Policy Report', Available at (accessed in June 2007)
3. Jaffe, A.B. (1989) Characterizing the technological position of firms, with application to quantifying technological opportunity and research spillovers. Research Policy, 18, 87 97.
4. Kodama, F. (1985) Technological diversification of Japanese Industry. Science, 233, 4761, 291 296. (Pubitemid 17236187)
5. Pavitt, K. (1991) R&D, patenting and innovative activities. Research Policy, 11, 33 51.
6. Pilkington, A. Dyerson, R. (2006) Innovation in disruptive regulatory environments; A patent study of electric vehicle technology development. European Journal of Innovation Management, 9, 77 91.
7. Suzuki, J. Kodama, F. (2005) Technological diversity of persistent innovators in Japan: Two case studies of large Japanese firms. Research Policy, 33, 531 549.
8. Verspagen, B. (1997) Measuring intersectoral technology spillovers: estimates from the European and US patent office databases. Economic Systems Research, 9, 1, 47 65.