If you look down at your zipper, there’s a hefty chance it bears the initials YKK. Why?
The letters stand for Yoshida Kōgyō Kabushikigaisha, a name that translates to “Yoshida Manufacturing Shareholding Company.”
A shrewd businessman named Tadao Yoshida founded the zipper beh… – http://goo.gl/r0b82X
TKK Zippers, Why Do All Zippers Have the Letters YKK on Them? – by Ramon – Decor10