Japanese Patent FAQs
Practice and Use of Patented Invention
Q.Are there any requirements for issued patents in Japan to be used? In other words, under Japanese law, must the patented invention be made, used, or sold?
No, there are no requirements that a patented invention in Japan be made, used, or sold. In other words, Japan is like the US; both countries grant rights for excluding others from making, using, or selling the invention.