As the name says, Hiragino Kaku Gothic is a sans serif typeface.

Yeah, I know gothic means sans serif, but the typeface in question has got small spurs on the terminals that resemble serifs. Unfortunately I'm having trouble uploading an image.

You could look for "flared" sans: http://www.myfonts.com/search/flared/

Take a look, at what I mean
http://promisedigital.co.za/typeface/HiraginoKaku.jpg

That's a term I've never come across, thanks.