Surprisingly, in the list on that page OKI isn't even mentioned. I had a small OKI databook once with a variety of 4-bit cpus in them (most if not all CMOS, ii

Surprisingly, in the list on that page OKI isn't even mentioned. I had a small OKI databook once with a variety of 4-bit cpus in them (most if not all CMOS, iirc). Obviously geared towards deeply embedded uses like toys, sensors, basically: battery powered uses where speed isn't important but every uA counts. Allthough it's possible those OKI parts where just 2nd sources of ones in the WP list.