Yoshida Kogyo facts

While investigating facts about Yoshida Kogyo, I found out little known, but curios details like:

Yoshida Kogyo Kabushikikaisha (YKK) produces nearly 7 billion zippers a year. Their every stage of the zipper making process is in house i.e. from smelting their own brass and building the zipper-making machines to making the boxes they ship in.

Most zippers in the world have the inscription YKK on them, because the largest producer of zippers in the world is a japanese company called Yoshida Kogyo Kabushikikaisha, which makes about 7 million zippers a day.

In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across. Here are 2 of the best facts about Yoshida Kogyo I managed to collect.