There's a great Korean grocer (Arum) on Bank near Catherine which has practically any Japanese product you could need. It's my source for frozen BBQ eel, soba noodles, umeboshi, and those tasty fish-and-seaweed flakes for rice, as well as ordinary stuff like miso or rice vinegar. There's also a very good Korean restaurant attached. They make a fine pork bone soup!
Duckfat