Kiehl's Brand

I absolutely love Kiehl's and if I'm honest was probably initially sucked in my their stylish packaging which is much more sophisticated that a lot of FMCG crap you see around, these guys have got it nailed, plus it's a great product! However I have no idea who designed their logo? Can't find diddly squat on the web and it seems to imply this was created a longtime ago by a mystical Japanese calligrapher. Either way the Kiehl's brand is a brand that I'd have loved to design so well oh mystical one.