They’re Japanese patents, so maybe they’re already circulating in Japanese media and haven’t been translated yet.

Alternatively, maybe the Japanese Patent Office requires you to follow some bureaucratic process to get a copy: like you have to be a lawyer and it takes 4-6 weeks to get your reply. I don’t know, but Japan just finally got rid of its last laws requiring floppy disks for certain processes a few years back, so it’s not out of the realm of possibility

I’m sure we’ll hear the details soon.