Sony today announced that the PlayStation Now for PC service will be available from 2017 Spring in Japan. Sony announced first on September 13, 2016 the service for the country and in September they said it will be available from 2016 Winter.

As you can see the service start delayed a little but don’t worry you can play soon with the selected PlayStation 3 games on your PC soon in Japan.
It should be noted that for the service you will need a DUALSHOCK controller, internet connection with 5Mbps or faster, PSN account, PlayStation Now subscription and the official PlayStation Now for PC client.

From the PC requirement side, you will need minimum Windows 7 with SP1 32/64 bit, 300MB free space, 2GB RAM, Intel Core i3 or AMD A10 CPU.