Trust built upon the tangible precision and care we put into each of our products.

The life of any vehicle or machine can depend on a single tiny gear. Gears can be mass-produced in tremendous quantities, day after day, but from the point of view of our customers, each one of these thousands and thousands of gears is absolutely vital to keeping their products working day after day. This means that not even the slightest lapse in precision can be permitted. At Nakatsuji Limited our motto is Total Engineering Service. We take responsibility for everything in the production process, from the raw material to the finished product. We rigorously analyze the customer's needs and the features of the relevant parts, and we control the entire process, from selection of the raw materials, to cold forging, heat treatment, and machining, to the final product, so as to provide the best possible engineering solution. We have also obtained ISO9001 certification from U.L. (Underwriters Laboratories Inc.). We have established a quality management system to provide high-quality products that are accurate and reliable.