Thank you for the detailed information!
I was able to replicate brathe problem and find a fix:
Fix
Create a new Windows user without special characters, and run the brainstorm3.bat when logged with that new user
Problem
While the path for your brainstorm installation (C:\fukukawa\Brainstorm\brainstorm3\bin\R2022b) does not contain special characters.[Brainstorm will create the User directory (.brainstorm) in the Windows User folder ("C:\Users\username\.brainstorm ") which in this case contains special characters.
https://neuroimage.usc.edu/brainstorm/Tutorials/CreateProtocol#Brainstorm_folders