Something curious I just noticed: Seta's Hon Shogi (1985) lists a Meguro address in an "Allumer Building". The flyer for Rezon also lists a Meguro address. It isn't the same one, but this was six years later (and it's only about 2 miles away). Were Allumer and Seta located in the same building once upon a time?
JP Wikipedia claims that Allumer was originally Seta's hardware division, but Allumer was established in 1978 while Seta was established in 1985. Makes more sense to me that Seta was spun off from Allumer, rather than the other way around.--Dimitri (talk) 07:53, 21 April 2017 (CEST)