It's quite possible that Nippon Denki actually had the table made by C.E.C. or maybe just bought the arm from them. A lot of people C.E.C. You might find the C.E.C. logo stenciled onto some internal parts or, say, cast into the underside of the platter but I've seen their OEM tables with and without any of their ID so absence of proof isn't proof of absence.
Anyway, the LAB 400 type arm should be fine for either cartridge. Getting the Excel Shibata from Merlin is the less expensive option and may in fact be the better one.
John