...and rightly so! Would they mark a set of hinges? no! Would they mark a custom set of tools? No! would they fix or replace the item in question if it failed? Yes! Steel is their job and art, not letters.
I think it may be a hi-production thing to put makers marks or brand names on things. If you worked at a weapon smithy under a smith in europe, asia, anywhere, the smithy itself may have a mark. Many apprentices to the great European, Indian and Asian swordsmiths working at such a place would use the master smith's mark, because the master smith had the final say for quality control purposes. This meant that only the weapons good enough to pass the master's inspection/testing would get the mark and be sold. anything that was sub-par would be thrown back for rework or scrapped.
So, in HI terms, Pala (or whomever does inspections of pieces, seems to be him in the pics) is the "master smith"*, all kamis are production smiths, and Uncle is the farthest extension of the quality control, and sales and distribution fall to him. Uncle is the weapons broker who would have journeyed to the courts of kings and pitched them a sales line about why your army should be equipped with our product over all others (medieval defense contractor).
*I use the terms "master smith" and "apprentice" VERY loosely and only for comparison purposes. I think most kamis if not all, are master smiths in their own right. Pala is more like an elected head of his peers, highest among equals, the pointman of the smiths.
Anyhow, under this comparison, all that need be applied to the blade in my opinion (including cho and sword of Shiva) would be the HI logo. the rest is window dressing.
my .02
Keith