「初」表示 先行性スクリーニング
: How to use it, features, and the business problems it solves
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What is 「初」表示 先行性スクリーニング?
"初" Display Prior-Art Screening is a free web tool from Teikoku Number One Research that uses AI to pre-screen advertising claims such as "world's first," "Japan's first," and "industry first." Enter the full claim and what is actually new, and it rates in four levels whether the wording can stand as is, then suggests how far to narrow the scope, which qualifiers to add, more defensible wording, the evidence you will need, and cautions for each ad platform, while also searching public information for possible prior examples. It is free to use (company name and email required). Results are a preliminary screening and cannot be used as substantiation for an advertising claim.
Business problems it solves
About "「初」表示 先行性スクリーニング"
What is "初" Display Prior-Art Screening?
"初" Display Prior-Art Screening (「初」表示 先行性スクリーニング) is a free web tool published by Teikoku Number One Research (帝国ナンバーワンリサーチ組合) that uses AI to give a preliminary verdict on advertising claims such as "world's first," "Japan's first," and "industry first" before you publish them. The official site also calls it the "World's First / Japan's First Checker."
Enter the wording you want to use and what is actually new, and the tool rates in four levels whether the claim can stand as written. It then shows how far to narrow the scope (region, industry, period, etc.), which qualifiers to add, more defensible wording, the evidence you will need, and cautions for each ad platform. It also searches public information for possible prior examples and shows each candidate and its impact on your claim.
Company name and email required
Claim → novelty → placement → submit
Prior-art search takes about 1 more minute
World, Asia, Japan, industry, other
Not usable as substantiation. The operator describes this as "a preliminary screening by AI." It does not prove that no prior example exists and cannot be used as supporting material for an advertising claim. A "reasonable basis" under Japan's Act against Unjustifiable Premiums and Misleading Representations requires a separate, exhaustive survey with a defined scope.
Why "first" claims need checking in advance
Claims like "world's first" or "Japan's first" are a strong reason for consumers to choose a product. But if an earlier product or service actually exists, the claim may count as a misleading representation of quality under the Act against Unjustifiable Premiums and Misleading Representations.
As the tool's own results explain, when the Consumer Affairs Agency requests materials under Article 7(2) of the Act (the rule on unsubstantiated advertising), you generally have 15 days to submit materials showing a reasonable basis. The deadline is not extended because you "are about to start a survey." That is why it matters to check, before you start using a claim, whether its scope can be substantiated.
This tool is for that first check: whether the current wording is likely to hold, how far you would need to narrow it, and whether there are possible prior examples, all within a few minutes of input.
How to use it
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Load your product page URL (optional)
Paste the URL of a public product page and click "Load." The tool fills in the claim type, full claim text, industry, product name, novelty and similar products (about 20–40 seconds). If the page already uses a "first" claim, it detects it and switches the "current status" to "already displayed." Always review and correct the auto-filled fields before moving on.
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Enter the claim
Choose the claim type (world's first, Asia's first, Japan's first, industry first, or another "first" claim) and enter the body text consumers will see, excluding footnotes (※), as the "full claim text." Also enter the industry/category and the product or service name.
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Describe what is new
Explain "what is new" in up to 1,200 characters. The operator asks you to describe "what you achieve and how," not phrases like "the only one in the industry," and at least 20 characters are required. If you know of similar or earlier products, list them too. This field affects the accuracy of the verdict more than any other.
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Select the placement conditions
Choose the current status (not yet published / preparing to publish / already displayed / displayed in the past) and the planned media (own website, press release, Google Ads, Yahoo! Ads, LINE Ads, social media ads, TV commercials, print, trade-show materials). If the claim is already in use, the verdict includes retroactive risk.
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Enter contact details and run the screening
Enter your company name and email (required), plus contact name and website (optional), then click "Run screening." The verdict appears in about 30 seconds to 1 minute, and the prior-art search results are added to the screen about a minute later.
Features
01Help with input
Collects your claim and novelty in a form the screening can use.
- Auto-fill from URL — reads a product page and fills in the fields
- Detection of existing "first" claims — flags a "first" claim already present on the loaded page
- Placement conditions — reflects the current status and planned media (multiple choice from nine) in the verdict
02Preliminary verdict
Shows whether the current wording is likely to hold and how to design a claim that does.
- Four-level verdict — "difficult to hold as currently worded," "room if qualifiers are added," "may be substantiated given a narrowed scope and an exhaustive survey," "cannot be judged with the current information"
- Sufficiency of information — whether the input is enough to judge
- Claimed vs. recommended scope — sets your claim beside a more defensible scope and tabulates substantiation potential and reasons by scope
- Qualifiers and wording — qualifiers needed to make the claim hold, their risk level, and more defensible wording
- Retroactive risk — risk for claims already in use
03Search for prior examples
Looks through public information for prior examples that may conflict with your claim.
- Prior-art candidates — for each candidate, the degree of conflict and its impact on your claim
- Search terms and limits — the search terms used and what this search could not cover
04Plan the next steps
Summarizes what to do after the verdict.
- Evidence needed — a table of required materials and why each is needed
- Cautions by media — review points for each selected ad platform (e.g., Yahoo! Ads and LINE Ads require the source to be stated within the creative)
- What to start now and information needed to finalize the verdict — next actions and missing information
The suggested wording comes with a reminder that the footnote must always include three items: survey date, survey scope and survey body. If any is missing, the ad will not pass review on Yahoo! Ads or LINE Ads. The operator also notes that passing a platform's ad review is a separate matter from complying with the Act.
Pricing
| Item | Price | Details |
|---|---|---|
| "初" Display Prior-Art Screening | Free | Preliminary verdict, prior-art candidate search, suggested wording, etc. Company name and email required |
| Follow-up consultation | Free | Ask via LINE or the contact form how far to narrow the scope for the claim to hold |
| Japan's First Survey (paid) | JPY 800,000 (excl. tax) | Exhaustive survey with a defined scope and an evidence report. Includes a banner |
| World's First Survey (paid) | JPY 900,000 (excl. tax) | Same as above. Includes a banner |
(Based on the official screening page and price list as of October 8, 2026. That the tool is free is based on the operator's statement and the screening page.)
The screening itself is free, and the official page does not state a usage limit. If you need a survey that can serve as substantiation, the operator's paid "Japan's First Survey" and "World's First Survey" are the next step. Paid surveys proceed through quote, order, kickoff meeting, survey and delivery, and the operator states it does not accept contracts that guarantee results, as that would be incompatible with its third-party status.
Data handling and operator
You need to provide a company name and email to receive results, and the operator may contact you afterward. If you enter information about an unreleased product, check it against your company's information-handling rules first.
Pros and cons
Pros
- Free, and the whole process takes a few minutes
- Goes beyond "holds / does not hold" to show how far to narrow the scope and which qualifiers and wording to use
- Searches public information for prior-art candidates and shows their impact and the search terms used
- Lets you check review points for Google Ads, Yahoo! Ads, LINE Ads and other media at the same time
- Can auto-fill input from a product page URL and detects "first" claims already in use
Cons
- Results are a preliminary screening and cannot serve as substantiation. Not finding prior examples does not prove they do not exist
- Not legal advice. A final decision still needs an exhaustive survey or expert review
- A company name and email are required, so it cannot be used anonymously
- Accuracy depends heavily on how you describe "what is new"
- The AI model used and the scope of the prior-art search (languages, databases) are not disclosed
Reviews and reputation
The screening page went live in August 2026, and as of October 2026 there are no substantial user reviews on review sites or social media.
The operator repeatedly warns, both at the top of the page and in the results, not to decide on a claim based on this tool alone. When the prior-art search cannot be completed, the tool says so plainly and notes that the paid survey covers multiple languages and databases. It is best treated as a way to get a first read before publishing, and as input for deciding whether to rework the wording or move on to an exhaustive survey.
How it differs from other tools
| Aspect | "初" Display Prior-Art Screening | AI search such as Perplexity | Legal review such as LegalForce and LeCHECK |
|---|---|---|---|
| Main target | "World's first," "Japan's first," "industry first" ad claims | Research of any kind | Contract review |
| Output | Four-level verdict, recommended scope, qualifiers, wording, prior-art candidates, media cautions | Answers with sources | Risky clauses and suggested edits |
| Premiums and Representations Act perspective | Judged with the substantiation rule and ad review in mind | You must frame the questions yourself | Out of scope |
| Price | Free | Free plan available | Paid services for businesses |
You can look for prior examples with AI search too, but you have to work out what to search for and within what scope a claim could hold. This tool differs in returning that framework in one pass, based on the Act and on ad-platform review.
FAQ
Q. Is "初" Display Prior-Art Screening free?
A. Yes. However, you must enter a company name and email to receive results. Surveys that can serve as substantiation are the operator's paid Japan's First Survey (JPY 800,000 excl. tax) and World's First Survey (JPY 900,000 excl. tax).
Q. Can I use the results as substantiation for an ad?
A. No. The operator states clearly that this is a preliminary AI screening, does not prove the absence of prior examples, and cannot be used as supporting material for an advertising claim. A reasonable basis under the Act requires a separate, exhaustive survey with a defined scope.
Q. What claims can it check?
A. "World's first," "Asia's first," "Japan's first," "industry first" and other "first" claims. You enter the full claim text and what is new.
Q. We already advertise "Japan's first." Can we still use it?
A. Yes. Select "already displayed" or "displayed in the past" as the current status, and the verdict will include retroactive risk. If you load your product page URL, the tool automatically detects "first" claims on the page.
Q. Can a patent prior-art search substantiate a "first" claim?
A. The notes in the results explain that a patent prior-art search cannot replace substantiation of a "first" claim, because its purpose and scope differ.
Q. How long does it take?
A. The preliminary verdict takes about 30 seconds to 1 minute, and the prior-art search about another minute. If you use auto-fill from a URL, loading takes about 20–40 seconds.
