J-Find Visa – how to find applicable universities, and specifics around eligibility (e.g., if a university falls out of eligibility, but recently was eligible)

I believe the requirement for a J-Find Visa is that you graduate from a university within the last 5 years that is in the top 100 for at 2 of Shanghai rankings, QS rankings, or THE rankings. However, I can’t find any official list of accepted universities; does anyone know where I can find such list, or is it implicit (i.e., so long as the university satisfies the aforementioned constraints)?

I graduated from the University of Southampton, which is 97th 100 in THE in 2024 rankings (but beyond 100 in 2023 rankings), and easily in top 100 for QS 2024 rankings, but not shanghai.

I don’t plan on moving to Japan (hopefully via J-Find Visa) until probably December or possibly a few months into next year, so that’ll be after the 2025 rankings are released (e.g., THE global rankings 2025 are release in October 2024).

If University of Southampton falls beyond top 100 in THE for the 2025 rankings, will University of Southampton immediately fail eligibility from October 2024? If not how long would I have to apply for the J-Find visa once it no longer satisfies the constraints?

by PepperGrind