Sony Interactive Entertainment has filed trademarks for the PS6, PS7, PS8, PS9, and PS10 in Japan. This is unusual because they don’t trademark this many names at once.

They got these names very early to protect themselves from people possibly stealing the name. It’s so easy for people to take the name for their own use or they can block Sony from making future PlayStations in numeric form. The internet has scared Sony so they had to secure their brand.

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