Abstract
We discuss future marketing strategy by using a method called "product genealogy" adopted genealogy for product development. We look back the history of the development, and then we find turning points from the history and analyze them. In this study, we focused on a case of photosensor developed by a Japanese producer. In the beginning of business, the photosensor has been developed for high energy physics experiment, but the advantage of the product was not recognized for researchers of high energy physics. However, the utility of the product was discovered by researchers of biology, as a result, one producer adopted the photosensor for their product and sales of the photosensor finally increased. We report the result of analysis in this study.
