Abstract
This study examines the relationship between patent invention for environment and corporate financial performance in Japanese manufacturing sector. We separate environmental patents groups as follows, (1) Pollution abatement technology, (2) Energy technology, (3) Products design and development technology. Dataset covers from 1965 to 1997 and we apply Poisson regression model. The result implies that economic performance have positive effect into the pollution abatement technology and products design and development technology. This is because high ROA firm can allocate enough budget to promote environmentally technology development, which might not contribute corporate productivity directly.
