SEGA

7 More Obscure Japanese Gaming Consoles You've Probably Never Heard of (HD GALLERY) - AkihabaraNews.com
As stated in the previous entry (the first 7), of particular interest here is the shear number of consoles that were available throughout the 70s, 80s, and 90s. The following are another set of Japanese-only offerings.

Eurotechnology Japan KK - October 05, 2013

Japan’s top 9 iconic game companies, Nintendo, Sony, Sega-Sammy, Bandai-Namco, Konami, Takara-Tomy, Square-Enix, Capcom, Tecmo-Koei created much of the world’s games markets, and many of the world’s most loved game characters.
They are now seeing brutal disruption.

With the Financial Year ending March 31, 2013, for the first time, just three Japanese newcomers (GREE, DeNA and GungHo) achieved higher operating income than all top 9 Japanese iconic incumbent game makers: