Rubycon Corporation (ルビコン株式会社) is a Japanese electronics company, whose main products are electrolytic capacitors, film capacitors and power supply units with a wide range of applications including consumer, industrial, power, lighting and automotive. Founded in 1952 as Nihon Denkai Seisakusho (有限会社日本電解製作所), it changed its name to Shin-Ei Electronics Inc. (信英電子株式会社) in 1960. The company was formerly known as Seibu Shin-Ei Inc. and changed its name to Rubycon Corporation in December 1990. Rubycon holds a significant world market share in the capacitor market, and has 11 production sites 10 in Japan and one in Indonesia. Rubycon appointed Supreme Components International, a Singapore-based electronics distributor, as their franchised distributor.