The Ricoh Company, Ltd. is a Japanese multinational imaging and electronics company. It was founded by the now-defunct commercial division of the Institute of Physical and Chemical Research (Riken) known as the Riken Concern, on 6 February 1936 as Riken Sensitized Paper. Ricoh's headquarters are located in Ricoh Building in Chūō, Tokyo.

Ricoh produces electronic products, primarily cameras and office equipment such as printers, photocopiers, fax machines, offers Software as a Service (SaaS) document management applications such as DocumentMall, RicohDocs, GlobalScan, Print&Share and also offers Projectors. 

In the late 1990s through early 2000s, the company grew to become the largest copier manufacturer in the world. During this time, Ricoh acquired Savin, Gestetner, Lanier, Rex-Rotary, Monroe, Nashuatec, IKON and most recently IBM Printing Systems Division / Infoprint Solutions Company. 

The Ricoh Group has sales and support, production, and research and development operations in nearly 180 countries. It has its world headquarters in Tokyo, Japan and regional headquarters in Japan, the Americas, Europe, China, and the Asia-Pacific.

Ricoh has 272 subsidiaries (72 national and 200 overseas) which specialize in technology- and customer-research groups around the world. For example, Ricoh Innovations, a research subsidiary of Ricoh Company, operates in Silicon Valley, California, focusing on technology, cloud, mobile solutions, and customer research.

According to en.wikipedia