Itsuo Doi is a master blacksmith from the renowned Doi family in Sakai, Osaka, a lineage famous for generations of high-quality knife making. Trained from a young age under his father, Keijiro Doi, Itsuo blends traditional forging techniques with careful hand-finishing to create knives that are both sharp and durable. His blades often use Blue-2 carbon steel laminated with softer iron in classic san‑mai construction, offering excellent edge retention and resilience. Whether crafting traditional single-bevel yanagiba or versatile double-bevel chef knives, Itsuo Doi’s work reflects a perfect balance of heritage, precision, and everyday practicality, making each knife a true artisan tool for the kitchen.