I was about to build a new AI agent at an AI hackathon.

We formed a team, worked on an idea, and came up with a project name.

Then I realized my teammate seemed interested in continuing development even after the hackathon.

And that's when something popped into my head: “Should we register this name as a trademark?”

We were at an AI hackathon, and I was already thinking about trademarks! (Haha.)

But for me, it was actually a pretty natural thought.

I sell products under my own brand on Amazon, and I've been through the trademark application process several times.

This time, though, things were a little different.

We weren't creating a physical product to sell. We were building an AI-powered web service.

Do web services need trademark registration too?

Here's how joining an AI hackathon got me thinking about trademarks and branding.

Why Was I Thinking About Trademarks at an AI Hackathon?

In October 2026, I joined the Vietnam Japan AI Hackathon 2026.

I teamed up with a Vietnamese AI engineer, and the two of us decided to build an AI agent for Amazon sellers.

We named our project FrostLoop AI.

My part involves sharing my experience as an Amazon seller, contributing ideas from the business side, and working on visual elements such as the logo and UI design.

And when we decided on the name, I thought:

If we eventually offer this as a service, shouldn't we think about trademark registration?

I have no idea how much other AI hackathon participants think about trademarks.

At least at the hackathons I've attended so far, I haven't had much of a chance to discuss trademark registration in detail.

After all, people join hackathons for all kinds of reasons.

Some want to learn new technology. Some want to build something in a short time. Some want to win a prize. Others are thinking about turning their projects into businesses.

Not everyone joins a hackathon to start a company.

So maybe the right time to think about trademarks is different for everyone.

Why Trademark Registration Feels Familiar to Me

I normally sell products under my own brand on Amazon.

I plan products, create logos and packaging, choose a brand name, and put the products up for sale.

That's why trademark registration is something I'm pretty familiar with.

Amazon has a program for brand owners called Amazon Brand Registry.

To enroll, you need a registered trademark or a pending trademark application that meets Amazon's requirements.

Brand Registry gives eligible brand owners access to features related to brand presentation, enhanced product pages, and brand protection.

Of course, you don't necessarily need a trademark just to sell something on Amazon. Plenty of sellers list unbranded products, too.

But for me, as someone building my own brand, trademark registration has been an important step.

So far, I've handled six trademark applications myself.

I didn't simply hand everything over to a trademark attorney. I looked things up and filed the applications on my own.

For my first application, I was using a Windows PC, so I downloaded the Japan Patent Office's software and filed electronically.

By the second application, I'd switched to a MacBook Air. I couldn't get the electronic filing process to work properly, so I went back to filing on paper.

And actually, I find the paper method pretty comfortable. When I take the documents to the Japan Patent Office counter, the staff can point out corrections on the spot. That's been a huge help.

There is an extra cost, though. For paper filings subject to digitization fees, the fee in Japan as of 2026 is ¥2,400 per procedure plus ¥800 per page. So if a trademark application document is one page, that's ¥3,200.

You also have to think about which classes your trademark falls into and exactly which goods or services you want to specify.

I knew almost nothing when I started. But going through the process myself helped me understand it bit by bit.

That said, I know filing your first trademark application on your own can feel intimidating.

Three people I know chose to hire a service provider to handle their trademark applications instead.

I've also heard of a case where getting a trademark registered for five years cost around ¥70,000. That's just a figure I heard from someone I know, though. I haven't verified what services or fees were included.

You can file on your own, as I did, or you can consult a professional and have someone handle the process if you're not sure where to begin.

I think it's fine to choose whichever option you're comfortable with.

That's why, if FrostLoop AI were a physical product I planned to sell under my own brand on Amazon, I'd probably think about filing a trademark application very early on.

But this time, it's a web service.

By the way, a Japanese trademark right lasts 10 years from registration and can be renewed.

When paying the registration fees, you can choose to pay for the full 10 years at once or split the payment into two five-year installments. The installment option costs a little more in total.

And registration takes time. In my own experience, it took roughly eight to ten months from filing to registration.

Do Web Services Need Trademark Registration Too?

This is the part I started thinking about again because of this hackathon.

In Japan, the name of a web service can also be eligible for trademark registration.

Trademarks aren't just for names attached to physical products.

Names and logos used to identify services can also qualify for registration.

Imagine a service that uses AI to analyze data.

Someone remembers its name and wants to use it again.

At that point, the name isn't just a string of letters. It's an important way to identify that particular service.

But you don't have to register a trademark simply to launch a web service.

Are you just presenting a prototype at a hackathon?

Will you actually make it available to users?

Are you planning to turn it into a paid business?

Do you expect to keep using the name for a long time?

The value of spending time and money on trademark registration probably depends on questions like these.

So how many people who build web services actually register trademarks?

I honestly don't know yet.

So far, I haven't found a reliable figure showing what percentage of web services have registered trademarks.

The category covers everything from small apps made by individuals to services run by huge companies. It's hard to treat them all as one group.

That's something I'd still like to learn more about.

What Are the Benefits of Registering a Trademark?

So what do you actually gain by registering a trademark?

Here are some of the main benefits.

  • Protecting your brand name: Within the scope of the registered goods and services, you may be able to assert your rights against unauthorized use of an identical or similar trademark.
  • Having a way to respond to similar names: If another party's use constitutes trademark infringement, you may be able to seek an injunction or damages.
  • Building your brand over time: Having rights to a name can be an advantage when you're trying to build recognition and trust in a service over the long term.

Of course, registering a trademark doesn't mean you can stop anyone from using any name that looks remotely similar.

And registration alone won't make a service popular.

But if you plan to keep building a service over time, having a way to protect its name can be a real advantage.

That's exactly why I'm weighing whether trademark registration would be worthwhile for FrostLoop AI as the project develops.

Trademark Classes and Designated Goods and Services: How Far Does Protection Extend?

This is an important part.

Registering a trademark doesn't give you exclusive rights to use that name in every situation imaginable.

In Japan, the scope of trademark protection is basically determined by the trademark itself, together with the goods or services it is registered for.

Let's say someone registers a trademark for an AI service.

Then another business starts using the same or a similar name for a similar service.

Depending on the similarity of the trademarks and services, how the name is actually used, and other circumstances, that use could amount to trademark infringement.

If it does, the trademark owner may be able to seek an injunction or damages.

On the other hand, two names looking similar doesn't automatically mean there's infringement.

The goods or services involved, and whether the name is being used as a trademark, matter too.

And when you file a trademark application, you need to think about classes.

“Designated goods and services” means the specific products or services you list in your application as the ones the trademark will be used for.

For example, Class 9 may be relevant to downloadable software, while Class 42 may be relevant to software provided online, such as SaaS.

But the appropriate designated goods or services depend on what you're actually offering.

It's not as simple as saying, “It's an AI app, so Class 42 should be fine.”

Another point: a Japanese trademark registration generally protects your rights in Japan.

If you want to offer a service overseas, you'll need to think separately about trademark protection in those countries.

With so many international participants at AI hackathons, that's something I'm curious about too.

What's the Difference Between Trademark Rights and Copyright?

When you're building a web service, copyright can be relevant too.

With FrostLoop AI, for example, we didn't just come up with a project name. We also thought about a logo and images for the interface.

And, of course, there's code behind the app.

So how are trademark rights and copyright different?

Here's a simple comparison.

Trademark rights Copyright
What they mainly protect Names, logos, and other signs that identify goods or services Original creative expression in writing, images, software code, and more
When rights arise Generally, after an application is examined and registered Automatically when a copyrightable work is created
Examples in a web service The service name and brand logo Original images, text, and source code

One way to think about it is that trademarks protect signs that tell people whose product or service something is, while copyright protects creative expression.

But there are a few things to be careful about.

Not every logo or image automatically qualifies for copyright protection. It needs to meet the requirements for a copyrightable work, including originality.

And the idea of “Wouldn't it be cool to build an AI app like this?” generally isn't protected by copyright on its own.

When you're working as a team, there's another question worth asking.

Who created what? And who has the right to use the finished work, and how?

One person writes code, another creates images, and someone else develops the idea.

Everyone has a different role, but together they're creating one service.

That's why, if the project eventually becomes a business, I think it's important for the team to clarify rights to the materials and code, and any permissions needed to use them.

AI-generated work can make things even more complicated. Whether copyright protection exists may depend in part on how people were involved in the creative process.

It isn't as simple as “AI made it, so anyone can use it” or “AI made it for me, so I automatically own the copyright.”

Maybe Trademark Registration Is Part of Branding Too

I've created logos, product images, and packaging for my own brand.

Choosing colors, shaping the overall look, and thinking about how to make a name memorable.

I've always thought of those things as part of branding.

And I feel like trademark registration fits into that same picture.

It's not just about choosing a name. It's about thinking through what you want to offer under that name, what kind of image you want people to associate with it, and whether it's a name you want to keep using.

Trademark registration is one tool for building a brand.

But registering a name doesn't automatically give the brand value.

You still have to offer products or services, help people discover them, and earn their trust.

When I look at it that way, maybe the most important thing for FrostLoop AI right now isn't whether to register a trademark. Maybe it's to find out how much value the service can actually offer.

So, Am I Going to Register FrostLoop AI as a Trademark?

The short answer is: I haven't filed an application yet.

The thought of registering a trademark came to me pretty early.

But for now, I've put the decision on hold.

If this were a product I was going to sell under my own brand on Amazon, I'd probably move toward filing right away.

But this time, we're building a web service at an AI hackathon.

How far will we continue developing it?

Will we actually offer it as a service?

Will it grow into a business?

There are still things I want to figure out.

Trademark registration costs money, and I'd also need to decide which goods or services the application should cover.

And since we're working as an international team, we'd need to discuss whose name the application would be filed under if we decide to go ahead.

So right now, I'm still figuring out whether registering the trademark would be worth it.

Precisely because I've filed trademarks several times before, I want to be thoughtful about the decision rather than rush into it this time.

Of course, waiting to file carries risks too, such as someone else applying to register the name first.

So holding off doesn't mean there's nothing to think about.

At the very least, checking for earlier trademarks is important when deciding whether to keep using a service name.

There Are Still Things I Don't Know

Joining this AI hackathon reminded me of something.

Experience from one part of your life can turn out to be useful somewhere completely unexpected.

I'm not an AI engineer.

But because I've built and sold products under my own brand on Amazon, it feels natural for me to think about service names and trademarks too.

Still, what seemed obvious in the world of physical products doesn't necessarily work the same way for a web service.

I'm learning that as I go.

And that's why I want to keep bringing what I already know into this new world, while learning what I don't know yet.

AI hackathons aren't just teaching me about building apps. They're giving me reasons to think about business and branding too.

Who would've thought I'd end up thinking about trademark registration at a hackathon? (Haha.)

But maybe that's just my own way of taking part.

This article reflects my personal experience and understanding of Japanese law as of October 2026. Whether a trademark can be registered or whether particular conduct infringes someone's rights depends on the specific circumstances.