Fonts are only inventoried on OSX devices by default... Depending on what you need, you could add .TTF to the ScanExtentions in Reporting - Manage Software list - settings; they will show up in the Inventory under Software - Packages, but are easily identified through queries.
Yep - Frank's got the right idea.
If you're searching for a SINGLE font, it may be easier to just write up a custom vulnerability to see which device does / doesn't have it installed -- if that's what you're after. (You can even include an "autofix" way of getting said font installed then if you're in for a standard).