I've bought Fuji +R's during the last 2 Best Buy sales and they were all TY. I don't recall seeing a single pak of + disks (50 or 100 pak) that were MIT, everyone I saw was MIJ.
The -R's were a mix of MIT and MIJ. Saltydog is correct, the MIJ spindles were flush, the base didn't stick out farther than the top covering plastic.
The 1st image should be a +R 50 pak. I didn't see any +R's in this type of spindle the last time I was there, but some -R's were and they were all MIT.
The 2nd image should be a -R 50 pak. Every +R 50 or 100 pak were in this spindle the last time I was at Best Buy and they were all MIJ. No guarantees that if it's in this spindle that it's MIJ, so always check, but the first thing I'd look for is this spindle and then check where it was made.
I still have 4 unopened 100 paks and 4 unopened 50 paks...must not go to Best Buy this week...fight the urge...
Here is a link to the media codes at www.videohelp.com for Fuji 8x + and - disks. I always buy + media since my home player won't read - disks. Thank God for bitsetting...According to Videohelp.com Fuji 8x +R that is MIJ should be TY and if it's MIT it's Ricoh. It looks like they are starting to use ProDisc sometimes for the -R, ugh.