There’s a reason that many of the city’s master chefs flock to Tribeca whenever they need a new sharp edge. It’s there on Warren Street that the Japanese kitchenware and home-goods company Korin sells a vast array of cutlery—blades that are reliable (often collectible) and boast a rich history that connects to the katana, a sword once wielded by samurai. While many articles have been written on this topic, less attention has been paid to the brand’s equally outstanding tableware, glassware, and kitchen accesso…