Miyagoshi Seito Ltd.Miyagoshi Seito in Kyoto manufactures and sells the artificial sharpening stones by vitrified method.

The long periods in hundred million years and numbers of accidents have created the natural
sharpening stone. We create the best artificial sharpening stones with the adept craftsmanship
and the cutting-edge technology from the land of Kyoto that has the abundant geological
layers of natural sharpening stones. Now, we introduce our commitment toward the
sharpening stones of Miyakoshi Seito which has lasted for 80 years.