Nichicon Corporation (ニチコン株式会社, Nichikon Kabushiki-gaisha) is a manufacturer of capacitors of various types and applications and is one of the largest manufacturers of capacitors in the world, headquartered in Karasuma Oike, Nakagyō-ku, Kyoto, Japan
https://www.nichicon.co.jp/english/index.html
In 1950, it separated from the Nii Works Co., established itself as Kansai-Nii Works and finished its first factory by 1956. In 1961, it adopted the Nichicon name and have been using it, or a variant thereof, ever since. In 2011 and 2012 Nichicon spun off several major factories into independent subsidiaries and established representative branches in foreign countries, thus realigning its corporate infrastructure