Nubeqa's compound patentee expiry japan?

“Nubeqa” is the brand name for darolutamide. If you mean the compound (active ingredient) patentee expiry date in Japan, the exact expiry depends on the specific patent family/claim and whether there was any Supplementary Protection Certificate (SPC)-type extension (Japan uses the patent term extension system under certain conditions, rather than EU-style SPC wording).

That said, for darolutamide (Nubeqa), the core compound patent term in Japan is generally expected to run into the early-to-mid 2020s, with the exact “expiry” you see in filings often being later if term extension was granted.

To give you the precise date, I’d need one of the following:
1) The Japan patent number (e.g., JPxxxxxxx) you’re looking at, or
2) Whether you mean basic patent expiry vs patent term extension expiry, or
3) The compound patentee name shown on the Japanese register / court/registry listing you’re using.

If you paste the patent number or link/screenshot text, I can interpret it and tell you the exact expiry date in Japan.