Kyocera is now well-known for their electronics, semiconductors and office equipment. But they started life as Kyocera Ceramics Co., so it's no wonder they're the leading brand in ceramic knives, blades and sharpeners.
Kyocera's kitchen products are widely used in Japan. Their ceramic knives, mandolines and peelers are known to be sharp, durable and lightweight. They don't rust, and can take a bit of neglect if you leave them in the sink for a while. Japanese Taste also offers a range of ceramic knife sharpening tools.