Someone Is Already Selling Your Brand on Amazon Japan or Rakuten: How to Take Control

The instinct is to fire off a takedown request and expect the listing gone by Friday. It rarely works that way in Japan, and understanding why is the difference between wasting three months on complaints that go nowhere and building a position that actually holds. The uncomfortable starting point: if the goods are genuine, the seller may be doing nothing illegal.

So this is not a guide to “how to get a listing removed.” It is a guide to a harder and more useful question — how a foreign brand takes structural control of how it is sold in Japan when someone else got there first. That control comes from three levers, in a specific order, and one gate that sits in front of all of them.

First, Read the Situation Correctly

Before you decide what to do, be precise about what you are looking at, because the two big Japanese marketplaces are built so differently that the same problem needs opposite responses.

On Amazon Japan: one product, many sellers

Amazon collapses every offer of the same product onto a single product page — one ASIN. When another seller lists your item, they do not create a competing page; they attach to yours. Japanese sellers call this 相乗り (ainori, “riding along”). Whoever Amazon selects for the Featured Offer — the default “Add to Cart” seller, historically the Buy Box — captures most of the sales, and shoppers almost never check who that is. They assume they are buying from the brand. If that seller ships slowly, prices oddly, or sends a grey-market unit with no Japanese manual, the one-star review lands on your product, not theirs.

On Rakuten Ichiba: many shops, separate pages

Rakuten is the opposite model — a mall of independent shops, where each merchant runs their own storefront, page design, reviews, and newsletter. A reseller on Rakuten does not sit on your page; they open their own shop with their own listing of your product. There is no shared ASIN to fight over, which means control is not about winning a Buy Box but about who ranks, who is authorised, and whether the reseller can prove their goods are genuine. Rakuten vets merchants and, for branded goods, expects proof of authenticity such as commercial invoices — a lever that does not exist on Amazon in the same form.

Both platforms are covered in more depth in our comparison of Rakuten vs Amazon Japan for foreign brands; here the point is narrower — the structure decides your options.

Why This Keeps Happening in Japan Specifically

Three features of the Japanese market make “someone is already selling you” unusually common for overseas brands.

Parallel imports are generally lawful. Japan permits the resale of genuine, legitimately sourced goods brought in through channels other than the official one — the grey market. A distributor who bought your product wholesale in one country can, in many cases, lawfully import and resell it in Japan. That is why “they are not authorised” is, on its own, usually not grounds for removal. Enforcement turns on something specific — counterfeits, trademark rights, altered products, false claims — not on the absence of your permission.

Japan is first-to-file on trademarks. Under Article 8 of the Trademark Act, when competing applications are filed for the same or a similar mark, the first to file wins — not the first to use, and not the brand that is famous abroad. This opens a well-documented door to trademark squatting, where a third party registers a foreign brand’s name in Japan before the brand does. Foreign brands often discover this only when they try to enforce and find someone else holds the Japanese registration.

Unregistered brands have thin protection. A genuinely well-known foreign mark can receive some protection in Japan without registration, but that protection is narrower and far harder to enforce — you have to prove the mark’s well-known status, which is slow and costly. A Japanese registration is the clean, enforceable version of the same right. Which leads directly to the gate.

The Gate: You Usually Need a Japanese Trademark First

Almost every meaningful control lever on Amazon Japan runs through Amazon Brand Registry, and Brand Registry is keyed to a trademark that is valid in the marketplace’s country. For Amazon.co.jp, that means a mark filed or registered with the Japan Patent Office (JPO). A US or EU registration does not, by itself, unlock the Japanese store. Amazon has broadened eligibility to accept pending JPO applications alongside granted registrations, but you still have to be in the Japanese trademark system, and your registered brand name has to match how it appears on your listings.

Three things foreign brands need to plan around:

• You need a Japanese representative to file. A foreign applicant generally must appoint a Japanese benrishi (patent attorney) to prosecute the application before the JPO. This is not optional paperwork you can DIY from abroad.
• It takes months, not days. JPO examination commonly runs on the order of 8–12 months to registration, so this is a timeline to start now, not after the problem gets worse. Rights, once granted, last ten years and are renewable.
• Someone may already hold your name. Because of first-to-file, the distributor selling you — or an unrelated squatter — may have registered your mark in Japan already. If so, this stops being an application and becomes a dispute, which is squarely lawyer/benrishi territory.

This is the single most important sentence in the article: the trademark step is the prerequisite, it is legal work, and it belongs with a Japanese benrishi or lawyer — not with your marketing team and not with an operations agency. Everything below assumes you are getting that filing underway in parallel.

Route 1: Take Control Through Brand Registry and Enforcement

Once you hold (or have filed for) a Japanese trademark and enrol in Brand Registry, you gain the tools Amazon reserves for brand owners: authority over the A+ Content and brand imagery on your ASINs, Sponsored Brands advertising, a Brand Store, and the enforcement suite — the Report a Violation tool, the Account Health “report abuse” route, and infringement reporting.

Be realistic about what enforcement does and does not achieve. These tools are effective against clear infringement — counterfeits, misuse of your trademark, listing hijacking that breaks Amazon’s rules. They are much weaker against a seller offering genuine goods on a shared ASIN, and sellers widely report that same-ASIN offers are not reliably removed by these tools. So Brand Registry’s real value against grey-market resellers is less “delete the competitor” and more “own the page”: control the content, the brand story, and the advertising so that even when others attach to the ASIN, the buying experience is yours. Removal is the exception; out-controlling is the norm. One caution: a run of infringement reports that Amazon later judges unsubstantiated can draw scrutiny back onto your own account rather than the reseller’s — if that happens, see our playbook on Amazon Japan account suspension recovery for how to read the notice and respond.

Route 2: Authorize and Set the Rules

If the seller is moving real volume of genuine product, the most pragmatic move is often not to fight them but to convert them into an authorised reseller under written rules. That flips an uncontrolled leak into a managed channel: you can require accurate Japanese content and compliant claims, control which SKUs they carry, set service and presentation standards, and pull authorisation if they break the terms. Pricing is the one lever to handle carefully — resale-price maintenance is constrained under Japan’s Antimonopoly Act, so any pricing or distribution restrictions should be drafted with Japanese counsel rather than imposed as a blanket MAP policy. It also turns their genuine-goods defence to your advantage — a formal authorisation and content standard is enforceable in a way that “please stop” is not.

This works best when there are one or two significant sellers rather than a swarm, and when your goal is orderly distribution rather than exclusivity. On Rakuten in particular, where the reseller must already prove authenticity to operate, an authorisation structure with content and pricing rules can be the cleanest path to a coherent brand presence. The trade-off is margin and control: you are formalising a channel you did not choose, so the terms have to be worth it.

Route 3: Build the Official Store That Out-Ranks Them

The third lever is the one that most reliably compounds: stand up your own official presence and make it the obvious, best place to buy. On Amazon that is a Brand-Registry-backed flagship — full A+ Content, a Brand Store, official pricing and fulfilment (often FBA for the Prime badge), and advertising that puts your listing at the top of your own branded search. On Rakuten it is your own official shop with proper Japanese pages, reviews, and the event-calendar and RPP advertising cadence the platform rewards. The mechanics of doing this well are covered in our guide to Amazon Japan for foreign sellers.

Why this matters more than it looks: shoppers who see an official-looking store with strong content, genuine reviews, and reliable fulfilment default to it, and the platform’s ranking rewards conversion and quality. Over time the grey-market seller becomes the worse option on your own turf — not removed, but out-competed. It is slower than a takedown fantasy and far more durable than one.

What a Brand Can and Cannot Do

Keeping the line clear saves months of misdirected effort:

• You can file a Japanese trademark, enrol in Brand Registry, own your ASIN content, run advertising, build the official store, and offer or withdraw reseller authorisation.
• You can report genuine infringement — counterfeits, trademark misuse, hijacking — through the platforms’ brand tools.
• You cannot generally force removal of a seller who is offering genuine, lawfully sourced goods, simply because you did not authorise them.
• You should not treat the trademark and infringement questions as operational tasks. Whether a specific product infringes, whether to send a warning letter, how to handle a squatted mark — that is legal judgment for a Japanese benrishi or lawyer.

A Practical First-Week Checklist

• Document it. Screenshot every listing, seller name, ASIN or Rakuten shop, price, and content, with dates. You are building a record before you act.
• Check the trademark position. Have a benrishi search the JPO register for your mark in the relevant classes. Are you clear to file, or has someone filed first?
• Assess the goods. Genuine grey-market, or counterfeit/altered? This determines whether you are in enforcement territory or channel-control territory — and it is a question for legal counsel, not a guess.
• Start the JPO filing. If the mark is clear, begin the application now; the 8–12-month clock does not start until you file.
• Decide the route. One or two serious sellers of genuine goods → consider authorisation. A hijacked or counterfeit listing → enforcement. Either way → build the official store in parallel.
• Sequence market entry. If you also lack a Japanese entity or importer-of-record setup, fold this into the broader entry plan rather than solving it in isolation — see our Japan market entry support.

How LAUNOVA Helps

LAUNOVA works exclusively with overseas brands selling in Japanese ecommerce — Rakuten Ichiba, Amazon Japan, Yahoo! Shopping, and Shopify. When a brand comes to us because someone else is already selling them, we work on the store-and-content side of the problem: getting you into and operating Amazon Brand Registry and Amazon Japan seller support, building the official flagship and A+ or Rakuten content that out-ranks grey-market listings, setting up an authorised-reseller structure with pricing and content rules, and running the day-to-day operations that make your own listing the one shoppers choose.

What we do not do is provide legal services. Filing your Japanese trademark, judging whether specific goods infringe, sending legal notices, or untangling a squatted mark belongs with a Japanese benrishi or lawyer, and we will say so at that line and work alongside the counsel you appoint. Engagements are scoped to your situation rather than sold from a rate card — tell us where you are being sold and on which platforms, and we will tell you what taking control actually involves →

FAQ

Q: Someone is selling my brand on Amazon Japan without permission. Is that even legal in Japan?
Often, yes — and that is the part foreign brands find hardest to accept. If the goods are genuine and were bought through a legitimate channel somewhere in the world, reselling them in Japan is generally treated as lawful parallel importation rather than counterfeiting, so you usually cannot have the listing removed simply for being unauthorised. What you can act on is different: counterfeit or materially altered goods, trademark infringement if you hold a Japanese registered mark, misleading claims, or listing-hijacking that violates the marketplace’s own rules. The practical response is rarely “get them removed” and more often “out-control the page” — through Brand Registry, an authorised-reseller structure, or your own official store. Genuine counterfeits are a matter for a Japanese lawyer or benrishi, not a settings change.

Q: Do I need a Japanese trademark to enrol in Amazon Brand Registry?
For Amazon Japan, effectively yes. Brand Registry is keyed to a trademark valid in the marketplace’s country, so for Amazon.co.jp you need a mark filed or registered with the Japan Patent Office (JPO) — a US or EU registration does not by itself unlock the Japanese store, and the brand name has to match your listings. Amazon has broadened acceptance to include pending JPO applications in addition to granted registrations, but you still have to be in the JPO system. Because Japan is first-to-file, if a distributor or squatter registered your name in Japan first, they — not you — may control that gate, which is exactly why filing early matters. Confirm current Brand Registry eligibility with Amazon and the trademark position with a benrishi before you rely on this route.

Q: How is taking control on Rakuten different from Amazon?
The structure is different, so the fix is different. Amazon collapses every seller of the same product onto one shared ASIN, so an unauthorised seller sits on your product page and can win the Featured Offer; control there is about owning the ASIN through Brand Registry and content. Rakuten Ichiba is a mall of separate shops — each seller runs their own storefront and page, so a reseller has their own listing rather than sharing yours. Rakuten vets merchants and requires proof of authenticity such as commercial invoices for branded goods, which gives brands a different lever: authenticity and channel enforcement rather than page control. On Rakuten the question is usually whether the reseller can prove legitimate sourcing and whether you would rather authorise them under rules or run the official store that outranks them.

Q: Can LAUNOVA get unauthorized sellers removed for me?
We are honest about the boundary here. Trademark filing and disputes, sending legal notices, and judging whether specific goods infringe are the work of a Japanese benrishi (patent attorney) or lawyer — we do not provide legal services and will point you to one at that line. What we do is the store-and-content side: helping you get into and operate Amazon Brand Registry, building the official flagship store and A+ or Rakuten content that out-ranks grey-market listings, setting up an authorised-reseller structure with pricing and content rules, and running the day-to-day Amazon Japan and Rakuten operations that make your own listing the one shoppers buy from. Engagements are scoped to your situation rather than sold from a rate card.