Abstract
This paper abstracted success factors of "bridging" between the gaps of industries and a national research laboratory, and developed it into a model, based on examples including a manufacturing method of the Single-Walled Carbon Nanotube, which is a research result by AIST and going to be put to practical use. We used indexes including "Patent scores" concerning the degree of attention received by the successful filing of patents (a popular index developed by an enterprise) in appraisal of technical quality, and in the conclusion, successful factors of "bridging" exist in close, long, frequent and intensive application activities of joint patents between one or two particular enterprises and a research institution. The activities are able to be estimated quantitatively and more generally using the products of three indexes the authors promote: (1) the share of top (and second) enterprise(s) which possesses patents co-shared by a research institution, (2) the degree of long-term and frequent joint-application activities by a particular enterprise and the research institution, (3) the degree of concentration of periods in the joint application activities.
