When one product hits, you will sell related products changing its design a little while keeping their design concept.

You have to complete the applications of related products in about 8 months after first design was approved.
But some people have dissatisfaction as the period is too short.

This period will be extended to 10 years by this upcoming law revision.
In addition, the term of protection of design rights will be extended to 25 years (now 20 years).

The importance of design is increasing more.