If you were eating at an Ichiran restaurant right now, you wouldn’t be reading this article. You also wouldn’t be chatting with a companion or multitasking. What you’d do is slurp noodles in solitude at a solo booth. The chain of minimalist ramen shops that impose a Zen approach on diners is hugely popular in Japan and Hong Kong, with 60 locations that are all open 24 hours a day. On Oct. 19, Ichiran opened…