Comment 6 for bug 779194

This bug also appears in the other Japanese monospace true type font. I tested VL Gothic in "ttf-vlgothic" package. (See attached screenshot) Each of full-width letters don't have the same width as half-width.

The Japanese glyphs of Takao and VL Gothic are not derived from the same source. So this bug is not related to which font is applied but related to the backends of displaying process.