Every Time You Zip Up Your Pants, Mr. Yoshida Smiles, Creepily

ykk zippers

Have you ever noticed how almost every zipper you own has “YKK” written on it? I didn’t, until I read this post about it. I did a little more research, and found out there’s quite a story behind YKK and their “circle of goodness.” Just remember, every time you zip up imagine Mr. Yoshida standing there watching, double thumbs up with approval.

What Does YKK Stand For?

YKK stands for “Yoshida Kogyo Kabushikikaisha” (also known as Yoshida Industries Limited), which is the #1 zipper manufacturing company in the world, making 90% of all zippers from 206 factories in 52 countries. Who knew the zipper industry was so big. Makes you wonder what the “button up pants” industry thinks of YKK. Probably not good things.

The Vibrant History of YKK

Yoshida Kogyo Kabushikikaisha has been around for a while, though they didn’t come up with the idea for a zipper, which happened in 1891. YKK came about in 1934, two years after Tadao Yoshida started working at a failed zipper company in Japan. Apparently, Yoshida was “impressed with the product” (people are impressed by zippers?) and went on to start his own zipper company after bankruptcy closed the Zipper co. he was working for at the time.

In 1945, YKK hit a setback, when their factory was burned down (I guess someone forgot to unzip the oven?), but they bounced back and bought a US company that helped automate zipper manufacturing. Can you imagine what it was like doing the zippering by hand? From there, YKK went on to bigger and better things, moving to Tokyo, expanding overseas, and basically dominating the zipper industry… an industry they dominated so much that they got in trouble for zipper price fixing. I guess Europe didn’t have much to do until Microsoft came along.

According to Wikipedia, while they made incredible innovations to the zipper, they also worked on some non-zipper (gasp) products. I’ve bolded the particularly *amazing* features:

  • Zippers
    • YZip: Metal zipper, extra durable for jeans
    • Ever Bright: Metal zipper, polished for visual appeal (oh yeah!) and corrosion resistance
    • Excella: Metal zipper, polished and plated for visual appeal, also in different colors (Purple? Pink? Oh yeah!)
    • Conceal: Plastic coil zipper with no visible teeth (nom nom nom)
    • Vislon: Rugged plastic zipper
  • Hook and loop products, more commonly known under the Velcro brand name of a competitor.
  • Plastic parts, including various types of clips and buckles
  • Snaps and buttons, including snap fasteners and jeans buttons

To make a long story short, YKK is “teh sexy” of zipper companies. When you think Japanese companies, things like Sony, Nintendo, Toshiba, Honda, and Toyota come to mind… but never YKK. Next time you zip up, make sure to thank Mr. Yoshida for the bladed death teeth next to your private parts. If they’re colored, you should give double thanks. Z-Z-Zip!

P.S. I feel like this article lacked, and should have some “zipper” puns… create some for me in the comments?

P.P.S. You should follow Tofugu on Twitter.

  • SarahXin

    I didn't know what you were talking about and then I looked and my jeans zipper said YKK. blew my mind.

  • Pinkgloom

    Who would have guessed? Thanks for this random and interesting bit of information. I wonder how many Japanese people know this…

  • WOTDsctoo

    I would have never known. I'm really glad this information zipped into my life.

    I tried. >.<

  • http://www.jamaipanese.com Jamaipanese

    excuse me while I go check all my zippers….

  • Drew

    ha i actually checked my zipper funny

  • Paul

    Hah! My zipper says Levi's! I guess american companies feel very independent while making their own zippers. lol

  • http://www.goddesscarlie.com GoddessCarlie

    Checked my bought-in-australia-prob-made-in-china pants and what do ya know, YKK. How is it that 99% of pants I wear have a zipper but I've never noticed this? Amazing.

  • http://www.facebook.com/people/Julia-Hermannsdottir/34604484 Júlía Hermannsdóttir

    I actually knew about the YKK thing (minus the “vibrant history” of the company) but I also noticed once when I saw a zipper that instead said KKK. wtf?

  • http://www.tofugu.com koichi

    uh oh, that's kind of scary, actually. haha.

  • http://www.tofugu.com koichi

    And yet the world's largest zipper manufacturing factory is in Georgia, USA, and run by the happy zipper folks at YKK. dun dun dunnnn!

  • moshi_moshi

    There's a YKK zipper on the sweater I'm wearing now! D:

  • Poppy

    I always noticed they said YKK, I thought everyone did :P. When I was little, and I found that out,
    I checked all my zips every time I used one :D
    Although the one on my trousers now actually says 'MAX' :O

  • http://en-gb.facebook.com/xjenni Jennifer Walker

    I just actually went to check everything I own with a zip, sadly they all (or well, most) seem to be SLIK, which seems to be England/China based. o:

  • fantastic_elastic

    My zipper currently says TYT which is actually a Hong Kong brand of zippers XD; Levis jeans

  • 42gami

    My Levi's have the YKK Zipper. Maybe Levi's zippers outside the US have been pwned by the YKK Zipper yakuza? Dun dun dunn!!! Hello from South Africa Koichi-san, great blog!

  • http://www.facebook.com/profile.php?id=164700680 facebook-164700680

    I looked at my jacket's zipper and it said “Dulon.” That was a total downer considering I'm a Japanophile.

  • kanmuri

    I already knew about YKK but I always wonder if the window maker “YKK AP” is related… Is YKK a conglomerate?

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    (II) In the past 6 years, we have sent great many products to the customers in USA, Europe, ASIA and other area, also we have lots of experience in dealing with online business oversea

    http://bccloth.com
    ^^^^^

  • kei

    sadly when i ran over to check my jeans there was just a V…. i feel cheated D:

  • Jenn

    My jeans say MAX. I guess it's another zipper company.

  • Jenn

    I looked it up; its a Chinese company

  • Jenn

    My jeans say MAX. I guess it's another zipper company.

  • Jenn

    I looked it up; its a Chinese company

  • aiwamoto

    Yeah, they're the same company. YKK AP is something like the architectural branch of YKK. Coincidentally, the main (maybe secondary) branch of the company is in the city of Kurobe, Toyama Prefecture, which is about 20km from where I'm currently living. They have a reasonably interesting museum and a nice park on the facilities, too. I don't think Koichi mentioned it, but they also make zippers and a few other parts for some cool stuff like firefighting suits and if I remember correctly deep sea diving suits.

  • Will

    My Brazilian Jeans says YKK!

  • Will

    My Brazilian Jeans says YKK!

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  • http://twitter.com/yoshi7617 Rebecca Penner

    I will forever check my jean zippers from now on.
    And possible other peoples'… ;D

  • Catherine44123

    None of my zippers have it, they r all blank except one that says A&F

  • http://twitter.com/Kadii_x Kadi Redman

    I feel disappointed that my jeans don’t have YKK on the zipper. Sadtimes.

  • Zoey

    Nothing. I guess Forever 21 makes their own.

  • TacoCat

    My zipper on my Levi’s just say “Levi’s”