That bike is made in japan i believe, at least the tubing is ishiwata> So i'll assume the bike has an english BB.

Are u sure you are turning the cups the right way???

Did you take the lock ring from the non drive side cup???

No idea what tools are you using or what BB cups that bike has, do you have the right tolls to do the job?? (picture?)

The times I got a glued and a frozen cup in a frame, what i did was put the tool in place using a quick release, then put the frame over a vice so the vice kept the tool really tight and used the frame to torque the thing out.

What you can do is to take the wheels out, just leave the saddle in place and seat the bike in the floor against the rear end and the saddle, that will give you more torque because you will be pushing down from above with your weight.

Another thing that always work is to get a big ass pipe wrench to crank the cups out, in case you need more torque just find a larger pipe, put it at the end put all your weight over it (kick it carefully) or even just hammer the pipe down with all you got. Got success doing this aswell.

Good luck.