Thanks all. As it happens, we've been to all three named places. My fondest recollection of a kaiseki meal here was Matsumoto, many years ago. I wrote it up for LTH and it remains here, somewhere. I do mean an "authentic" kaiseki, however, and I fear, as BR suggested, that there is no such animal around. Maybe there's a hole-in-the-wall in Arlington Heights (or somewhere else), but I suspect that I may have trouble locating one in Chicago.
Gypsy Boy
"I am not a glutton--I am an explorer of food." (Erma Bombeck)