Conventionally, conductive paste was applied between the skin and electrode, so that cleaning was required after measurement. If the wearer felt stress while wearing the hard, cold metal electrodes for a given period of time, noise signals might be generated, possibly resulting in unsuccessful measurement.

To realize measurement in a comfortable, relaxed condition, NOK made efforts to develop electrodes that would be soft like the human skin. As a result of research, we developed a rubber material that is mixed with conductive filler and thus carries electricity. The soft, biocompatible rubber electrode series, Sotto, has thus been launched into the market.

Of the Sotto Series products, the Sotto Connect saves the hassle of connection and omits compatibility with conventional devices. It also saves the trouble of having to apply conductive paste, and can be used to measure the electrocardiogram of your animal companion. No shaving is required, further reducing the anxiety of the animal and the owner.

While developing a new functional material, we focused attention on conductive rubber, and started development aiming at entering the healthcare market. Firstly, we analyzed existing electrodes and understood their functions. Then, we proceeded with development, trying prototypes on ourselves and occasionally visiting field users to get their feedback. To develop a repeatedly usable product without compromising on the usability of existing products, we made the utmost efforts in integrating the metal snap button, achieving good durability, and realizing stable electrical characteristics. The major users of this product include veterinary hospitals and nursing-care facilities, it is used in a swallowing disorder prevention program, for example. Using its expertise in material development, NOK, a conventionally “behind-the-scene” player, has succeeded in developing products in a new and different way, we believe.