Junichi Sakata

0302 Efficiency of Cutting Edge Technology Combined R & D in the Fuel Battery Field based on the Quantitative Analysis of the Proposed Patent

Katsuhiro Suzuki, Jun Hosoya, Junichi Sakata, 2007 .

A Trial on Quantitative Evaluation of Progress in Fuel Cell Technology based on Patent Data

Katsuhiro Suzuki, Jun Hosoya, Junichi Sakata, 2008 .

Analysis of Firm's Performance in Japanese Mobile Telecommunication Industry based on Patent Data

Katsuhiro Suzuki, Jun Hosoya, Junichi Sakata, 2010 .

1310 The Analysis for R & D Efficiency of Leading Edge Technologies based on the Quantitative Analysis of Patent Data

Katsuhiro Suzuki, Jun Hosoya, Junichi Sakata, 2006 .

The Analysis of Research and Development Efficiency in Japanese Companies in the Field of Fuel Cells Using Patent Data

Jun Hosoya, Junichi Sakata, J. Sakata, 2009 .