Maruwa Co., Ltd. produces and sells ceramics and electronic parts in Japan and internationally. It operates through the Ceramic Components Business and Lighting Equipment segments. Its offerings include ceramic substrates and fillers, metalized and multilayer ceramic substrates, pressed ceramic products, ceramic hermetic seals, ultra-high purity SiC components, antennas, EMC and RF components, capacitors, quartz glass products such as quartz tubes and boats, and aluminum nitride components. The company also provides LED streetlights, tunnel lights, and landscape lights, along with technical consultation services, serving automotive, telecommunications, semiconductor, industrial equipment, and lighting applications. Formerly known as Maruwa Ceramic Co., Ltd., it changed its name to Maruwa Co., Ltd. in 1999, was incorporated in 1973, and is headquartered in Owariasahi, Japan.