(Roughly) Daily

Posts Tagged ‘YKK

“No one prospers without rendering benefit to others”*…

Close-up of a zipper on a fabric surface, highlighting the metal slider and stitching detail.

Revisiting a topic we last considered about six years ago: the modern zipper was invented (or, at least, first patented) in 1913. But, as Michael Knispel explains, story of the zipper-as-we-know-it began in Japan in 1934…

Here’s a test you can do right now. Look down at your jacket. Your jeans. Your bag. Find a zipper—any zipper—and check the pull tab. Three letters. YKK.

Try another. Your backpack. Your hoodie. Your tent, if you’ve got one nearby. YKK.

It’s everywhere. And once you start noticing, you can’t stop. It’s like discovering a secret language written into the fabric of modern life.

Those three letters stand for Yoshida Kōgyō Kabushikigaisha—Yoshida Manufacturing Corporation. And they represent one of the most successful, least-known companies in the world.

YKK produces roughly half of all zippers made globally. Seven billion zippers a year. In some markets—Japan, for instance—their share approaches 90%. If you’ve ever zipped anything, there’s a better-than-even chance it was theirs.

But here’s what fascinates me: they didn’t get there through aggressive expansion or undercutting competitors. They got there by being better. By obsessing over a component most people never think about. By treating the humble zipper not as a commodity, but as a craft.

And after ninety years of that obsession, they’re not resting. They’re constantly evolving—pushing the zipper into territory it’s never been before.

Let me tell you the story…

[And tell it, he does: the company’s remarkable history, turning the to a survey of recent innovations…]

… For most of YKK’s history, innovation meant incremental improvement. Better corrosion resistance. Smoother sliders. More durable coils.

But in the past few years, something’s shifted.

YKK isn’t just refining the zipper anymore. They’re rethinking it entirely.

After ninety years of mastering the fundamentals, they’re finally asking: what else could a zipper be?..

[Knispel recouns recent developments– the “AiryString” (tapeless) zipper, the self-propelled zipper– concluding with “The Revived Collection”…]

… Here’s the most important innovation—and it’s not a single product. It’s a philosophy.

The YKK Revived Collection is a series of repair-focused components designed to keep zippers functional and maximize a product’s lifecycle. The goal is simple but radical: the zipper should never be the reason a product is thrown away.

YKK has developed three main components in the Revived series, each targeting a specific failure mode. Together, they represent a fundamental shift in how YKK thinks about their products—not just as components to be manufactured and sold, but as systems to be maintained and repaired.

Traditional center-front zippers—the kind you find on jackets and hoodies—have a problem. When the slider breaks or the pull tab snaps off, you’re stuck. The standard repair requires cutting off the top stop, that metal or plastic piece that keeps the slider from flying off the end, and replacing the entire slider. It’s destructive, time-consuming, and often requires specialized tools.

The Revived Top Stop changes that. It looks like a standard top stop, but with a zigzag groove pattern cut through it. That channel allows you to orient the slider through the stop and derail it, removing it without cutting anything…

[Knispel explains the ingenious fixes for regular zippers, pocket and accessory zippers, and bag zippers. Then he draws the wisdom they embody…]

… Here’s what ties the Revived Collection together: YKK is building repair infrastructure.

They’re not just selling replacement parts. They’re designing zippers to be repairable from the start, and they’re working with brands, warranty centers, third-party repair shops, and even consumers to make those repairs accessible.

“We’re targeting this for warranty and quality centers, third-party repair centers, potentially in-store retail repairs, and eventually consumer repairs,” says John Holiday, YKK’s Senior Product Development Manager. “We want to make sure the fastener or the zipper is not the reason a product is no longer in use or why it needs to be warrantied.”

That’s a shift. Traditionally, YKK sells zippers to manufacturers in bulk—cut zippers or chain-and-slider assemblies. The Revived components are sold as standalone parts, which means YKK is rethinking its distribution model to make replacement parts available outside traditional manufacturing channels.

I started this piece with a test: look at your zippers. Three letters. YKK.

Now you know why they’re there. Not because of aggressive marketing or locking out competitors. Because a man in 1934 Tokyo decided that if you make something genuinely better—more reliable, more consistent, more thoughtful—success follows naturally.

Ninety years later, YKK still operates on that philosophy. They’re still privately held. Still vertically integrated. Still obsessing over a component most people never think about.

And it looks like they’re not done. They’re constantly evolving…

The Company That Zips the World | YKK’s Ninety-Year Obsession,” from @carryology.bsky.social.

YKK Corporate Philosophy

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As we zip it, we might that on this date– Halloween– in 2005, Gary Estrada, met his goal to visit at Walt Disney World’s Magic Kingdom Haunted Mansion 999 times. Estrada had begun riding in January of that year and finished on Halloween in just ten months. Why 999 times? Because that is how many “happy haunts” are said to live there.

A nighttime view of the Haunted Mansion at Walt Disney World, featuring a carriage in the foreground and the mansion's Gothic architecture illuminated by warm lights.

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Written by (Roughly) Daily

October 31, 2025 at 1:00 am

“God loveth the clean”*…

The history of ordinary things can be fascinating while offering insight into our immediate future. We’ve previously noted how artificial ice and assorted refrigeration/cooling technologies helped change demographics in the American South. Recent news from the Census Bureau confirms this trend as northern states like Michigan and New York lost population while the south, Texas and Florida in particular, gained. But the history of the ordinary can be hidden by ubiquity, tedium, and general disinterest. Unnoticed until they cry out for attention. Today’s Tedium is looking at the history of New York City restaurant inspections and the variety of ways restaurants cope. (And yes, the pandemic has certainly had an impact.)

There is no shortage of great New Yorkers, the people that helped shape the city and its culture. How one measures impact can vary. The wealthy and influential find their names on street signs, convention centers, and airports. A year into the COVID-19 pandemic, however, there is a renewed appreciation for those that helped lay the foundation for the city’s hospitals and medical care. In this regard, there are few New Yorkers greater than Dr. Sigismund Goldwater. 

A graduate of Columbia University and NYU medical school, Dr. Goldwater was a recognized authority in hospital construction. Among the numerous posts he held over a distinguished career included Superintendent at Mount Sinai Hospital, president of the American Conference on Hospital Service, and vice president of the New York Academy of Medicine. In recognition of his career and experience, he was appointed City Commissioner of Hospitals from 1934 to 1940. During his administration, Dr. Goldwater oversaw the construction of 25 new hospital buildings. His Times obituary credits him with adding more than 5,000 hospital beds to city capacity.

While his work in hospital administration and construction helped lay the foundation for New York City as a world-class center for health care, Dr. Goldwater has a legacy a bit more meaningful to modern restaurateurs. In 1914, Mayor John Purroy Mitchel was newly elected and in need of a health commissioner. His first choice, Dr. Goldwater, didn’t really want the job but finally acquiesced on the strong insistence of his predecessor. 

About six months after taking over the role, now Health Commissioner Goldwater announced a couple of general initiatives in public transportation and dining to ensure general cleanliness, pointing out to the Times that, “…the Sanitary Code at present did not call for regular inspection as in the case of bakeries and meat markets.” His solution was to require permits and require commercial restaurants to be inspected on an annual basis.

Public health, especially regarding sanitary food handling practices, had grabbed media attention in the early 20th century in part to Upton Sinclair’s The Jungle. Sinclair, an investigative journalist, went undercover to detail the working conditions in meat packing facilities. His account of rat infested factories and spoiled meat products shipped to consumers provoked outrage. Unfortunately for Sinclair, who was trying to shed light on the conditions of workers, readers were incensed to learn what was in their food. By 1905, the federal government had passed legislation to create what would become the Food and Drug Administration (FDA).

Another unique circumstance that kept food safety in the minds of New Yorkers was the terrible tale of Mary Mallon, better known as Typhoid Mary. A private cook that was also an asymptomatic carrier of typhoid, Mary Mallon became infamous for her condition, the number of people she infected, and her refusal to cooperate with safety guidelines. [See here]

There was another reason for the attention Mary Mallon received, explains Claire Stewart, a chef and hospitality management professor at the New York City College of Technology. “Typhoid was considered a disease of the poor and associated with immigrants and overcrowded tenements,” she said. “Mary Mallon spent a lot of her career cooking for wealthy people, so her bringing typhoid to the upper classes caused a lot of alarm.”

Still, by the time Dr. Goldwater became health commissioner, New York City had yet to regulate restaurants, creating a range of dining experiences and anxiety about the status of any given kitchen.

One concerned citizen wrote to the Times in a letter titled, “We Need Dainty Waiters.”, “In these days of pure food laws and Boards of Health… I would like to ask what assurance, if any, has the public that in our hotels, restaurants, and clubs proper supervision over their employes is exercised so as to insure us a fair degree of cleanliness on the part of those who handle the food we are to eat? This inquiry is prompted by occurrences coming under the personal observation of the writer, showing that employes in so-called high-class hotels, clubs, and restaurants are often guilty of practices which would not be tolerated in our own homes. One large restaurant in this city requires its waiters to pass an inspection by a manicure before they are allowed to handle food for its patrons.”

After Dr. Goldwater noted that other cities had also adopted regular restaurant inspections, and noting the potential for additional revenue via fines and permit fees, the city agreed. Now they just had to get some 15,000 owners and operators to comply. Should be easy, right?…

The wacky and surprising history of NYC restaurant inspections (and by extension, that same system in other cities). That letter grade is a lot more effective than you might think: “The Letter in the Window.” By Andrew Egan, in Ernie Smith’s (@ShortFormErnie) ever-illuminating newsletter Tedium (@readtedium).

* Francis Bacon

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As we wash our hands, we might recall that it was on this date in 1913 that Gideon Sundback was granted a patent on the first modern zipper. While he did well with his invention for several decades, he and his western competitors were overtaken in the mid-20th century by YKK.

Most checked chefs pants still have buttons.

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Written by (Roughly) Daily

April 29, 2021 at 1:01 am

“Zippers are primal and modern at the very same time”*…

zipper

When Tadao Yoshida was 20 years old, he got some bad news: The trading company where he worked was bankrupt. It was 1934, and his future was suddenly thrown into question.

But the bleak news came with an unexpected silver lining. Instead of dissolving the business entirely, the company’s owner gave the business to Yoshida so he could try to make a fresh start.

To say that Yoshida succeeded would be a massive understatement. Today, Yoshida’s company is valued in the billions, with profits in the millions. It’s so big, with so many divisions, that it’s tough to put an exact number on this success. As of 2016, the company employed more than 44,000 workers across more than 130 subsidiaries in at least 60 countries around the world.

In fact, you’re probably wearing one of Yoshida’s products at this very moment. If you look closely at the zipper on your jeans or your jacket, you’ll even see the company’s initials: YKK…

How one company came to dominate the world’s market for fly fasteners: “Zipped.”

* Tom Robbins, Jitterbug Perfume

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As we seek closure, we might recall that it was on this date in 1750 that the first issue of the first college student magazine, Student, or the Oxford and Cambridge Miscellany, was published.

Cover of a 20th century collected reprint

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Written by (Roughly) Daily

January 31, 2019 at 1:01 am