Yamauchi, Isamu; Nagaoka, Sadao - Institute of Innovation Research, Hitotsubashi University - 2008
The number of requests for patent examination showed a significant increase of 83% from 1997 to 2007 in Japan, while … causes of recent "explosion" of examination requests, focusing especially on (1) the introduction of multiple claim system … (January 1, 1988), (2) the shortening of the period available for examination request from seven to three years (October 1 …