NIPPON PISTON RING CO., LTD. Company Overview

Towards world-class high quality! The "NPR" brand chosen by the world's high-performance engines.

Our group is engaged in the manufacturing and sales of automotive-related products (piston rings, valve seats, and other automotive-related products) as well as marine and other products, along with related businesses. Our products are adopted in various types of engines, backed by reliable technology and a rich lineup of quality. In addition to automotive and marine products, we also handle MIM (Metal Injection Molding) parts that can achieve small and complex shapes, axial gap motors optimal for AGVs, motor cores (powdered magnetic cores), highly biocompatible titanium alloys (NiFreeT), and medical device components (dental implants).