Japanese patents investigation report on web handling technology
Abstract
In order to initiate programs in web handling, it is necessary to understand the technical vector that has developed in the field. In this paper we have investigated 1784 Japanese patents on web handling technology that were issued from 1971 to 1988. 227 patents have been classified into several categories and as a result, we have found that Japanese patents concentrate on hardware (e.g., splice, tension control and edge position control ) and phenomena. Phenomena include improvement of winding quality and recently, several patents to increase yield percentage and to improve storage quality.
Citation
Ohnishi, S., Matsumoto, K., & Walker, T. (1991, May). Japanese patents investigation report on web handling technology. Paper presented at the First International Conference on Web Handling (IWEB), Stillwater, OK.