What do the letters "YKK" that appear on many zippers from name brands of clothing mean?

Here is a bit of zipper history. The %26quot;clasp locker%26quot; as it was called, was invented in 1891 by Whitcomb L. Judson. The clasp locker was an assemblage of hooks and eyes that Judson thought would save people time and sore backs fastening their shoes with one hand. Later, in 1913, Gideon Sundback of Sweden developed the predecessor of today%26#039;s zipper that used metal teeth, and patented it in 1917. Sundback%26#039;s design was the first design that saw practical use. Sundback%26#039;s %26quot;separable fastener%26quot; had more fasteners per inch than the earlier clasp locker. Later, the B.F. Goodrich Co. used the separable fastener in some rubber boots and came up with the name %26quot;zipper%26quot; because the boots could be fastened with one hand. Today, zippers are also made of plastic as well.





Founded in Japan in 1934, YKK was called Yoshida Kogyo Kabushikikaisha, but 60 years later the company changed its company name to match its brand name. The privately held YKK Co. is headquartered in Japan and is made up of 80 companies at 206 facilities in 52 countries. YKK makes the entire zipper including the dyed cloth and the brass used to make the zipper

What do the letters %26quot;YKK%26quot; that appear on many zippers from name brands of clothing mean?
YKK® registered as a trademark of Yoshida Kogyo K.K.
Reply:Yoshida Kogyo Kabushikikaisha





name of company
Reply:%26quot;YKK%26quot; is a Japanese founded company , it stands for ,


%26quot;Yoshida Kabushi Kaisha%26quot;.
Reply:It%26#039;s a group of japanese manufacturing companies.


They make the zippers.



fashion accessories