Nitto Denko Corporation (日東電工株式会社, Nittō Denkō Kabushiki-gaisha) is a Japanese company that produces tapes, vinyl, LCDs, insulation, and several other products.

It was founded in Osaki, Tokyo in 1918 to produce electrical insulation and it survived World War II, despite the destruction of its central offices which have since moved to Osaka.

[citation needed] In August 2015, Nitto Denko announced their development of a new method of sintering neodymium magnet material.

The method exploits an "organic/inorganic hybrid technology" to form a clay-like mixture that can be fashioned into various shapes for sintering.

[4] On 10 September 2020, Nitto Denko announced it will extend its title partnership of the ATP Finals for another five years, until 2025.