Kaneka is a Japanese materials company that active with plastics, PVC and caustic soda, foodstuffs, pharmaceuticals and other markets.
Konica Minolta is based in Japan and is involved in copiers, printers, medical equipment, optical devices and thin films used to enhance picture quality in LCD.
KM is developing and producing OLED for lighting, and in March 2014 the company announced that it is starting to construct a R2R flexible OLED lighting fab with plans to start production in the fall of 2014. The fab is not in mass production stage yet, although KM does produce samples and in February 2015 the company shipped 15,000 flexible OLEDs to a Tulip Festival installation in Japan.
Lumiotec, located at Yonezawa City, Japan, was formed in May 2008 by Mitsubishi Heavy Industries, ROHM, Toppan Printing and Mitsui to check the viability of OLED panels for lighting, and to manufacture and sell the panels.
In March 2009 Lumiotec showed their first OLED lighting prototype, and the company is now offering panels online - making about 60,000 panels a year. Here's our hands-on review with their Version 1 development kit and square OLED panel and here is some details on Lumitec's technology.
Osram Opto Semiconductors GmbH, Regensburg, is a wholly owned subsidiary of OSRAM, a leading supplier and manufacturer of lighting solutions who employs more than 35,000 people throughout the world.
OSRAM released the world's first OLED lamp back in 2008, but this was more of a prototype than a commercial product. In November 2009 they have started to ship their first OLED lighting panel, the ORBEOS, and here's our hands-on review of those panels.
Pioneer, based in Japan, was founded in 1938, and is producing home and car electronics systems. Pioneer was the first company to actually make OLED displays - back in 1998. Pioneer still makes PMOLED panels, but the company exited from the AMOLED display market in 2005.
In February 2010, Pioneer announced it has entered the OLED Lighting market, together with Mitsubishi Chemicals. Pioneer is producing the panels using Mitsubishi's technology. They are sold under the Verbatim brand.