Uni Paint Marker is a product line of marker pens by the Uni-ball brand, launched by the Japanese Mitsubishi Pencil Company in 1980. The Uni Paint Marker logo shows the rather surprising choice of the 1970s typeface Bullion. The “uni” part seems to have its own unique letters, at least I have not found any typeface that could exactly match (see also the longer version of the uni-ball logo below). “MARKER” is added in Helvetica. The pens themselves additionally use a number of other typefaces which are not listed here.