Renowned Japanese designed and founder of
In order to tackle this small but significant problem, Oki Sato has molded the bow of the key into an L-shape, allowing the principle of leverage to enable users to turn the key effortlessly, just like a hex key. Further, its asymmetrical shape allows for easy identification of the key’s top and bottom, front and back, so users with low vision can feel the key’s correct orientation in their pockets or in unlit areas with only their fingertips.
Overall, the design is so simple that instead of adding new elements to standard keys, the L door key structurally shifts the bow off-center for the operation. This means the key is neither wider nor bulkier than usual. brass was chosen for its durability and bacterial and viral resistance.