Choosing a Yago in Japan: Naming, Trademark Checks and Business Notifications
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Last Updated:
Category: Side Jobs
Authors: Shusaku Yosa
A yago is a trading name used by a sole proprietor in Japan, such as a studio or shop name. It is not incorporation, trademark registration or the equivalent of every overseas DBA system. Choose a name around your customers and services, then investigate similar names before paying for a visual identity.
Four identifiers with different purposes
Identifier | Purpose | What it does not establish |
|---|---|---|
Yago | A name used for the business | Exclusive rights simply because it appears on a tax form |
Shogo / trade name | A name identifying a merchant in business | A concept limited exclusively to corporations |
Trademark | A sign identifying goods or services | Rights covering every possible business category |
Domain name | An internet address | Permission to use somebody else’s protected mark |
A practical naming workflow
- Write one sentence describing your intended customer and service. Note realistic future additions.
- Create a small shortlist and test pronunciation, spelling and telephone communication.
- Place the name on a sample invoice and website heading. Make the contracting individual’s identity clear.
- Research similar names and marks before commissioning a logo or printing material.
The following names are fictional comparison examples, not cleared names available for your use.
Example | Strength to evaluate | Question to resolve |
|---|---|---|
Minato Editing Studio | Explains an editorial focus | Does the wording become restrictive if services expand? |
Mina Works | Allows broader services | Can customers distinguish it in search and spell it correctly? |
Personal name plus service | Connects expertise to an identifiable person | Are there similar names, and what personal details will be public? |
Research names, pronunciation and relevant services
Start with ordinary searches for exact names and spelling variants. Follow the Japan Patent Office’s search guidance for J-PlatPat, and examine similar pronunciation and relevant goods or services as well as identical text. Keep a record of dates, search terms and the scope you checked.
An empty search result is not legal clearance; an existing similar name does not by itself answer whether your use is permissible. Where overlap is close or you expect significant brand investment, obtain appropriate professional advice before committing. Domain availability should be a separate practical check.
Business notifications and blue returns have separate deadlines
Under the NTA guidance current in 2026, the individual business opening/closure notification is due by the income-tax return deadline for the year of the relevant event. Do not rely on an older blanket instruction to submit it within one month.
Procedure | Basic timing | Naming implication |
|---|---|---|
Business opening notification | By the return deadline for the year of opening | Entering a yago does not register a trademark |
Blue-return approval application | Generally March 15; for qualifying new starts on or after January 16, within two months of starting | Track this separately from the opening notification |
Bank and customer registration | The organization’s own procedure | Confirm accepted name formats and required evidence |
Do not postpone necessary tax procedures just because the name is undecided. Payroll, consumption-tax and local requirements depend on your actual circumstances. Filing an opening notification does not automatically classify every side-income activity as business income.
If you change the name later
- Contracts and invoices: show the legal contracting person and effective date so customers understand continuity.
- Banking and payment services: confirm procedures, displayed beneficiary names and handling of payments using the old name.
- Website and communication: update headings, signatures and contact details consistently.
- Design assets: retain the previous version and record which materials must change.
- Government and customer records: ask each relevant office how the change should be reported.
Naming worksheet
Customer and service: [ ]
Written name and pronunciation: [ ]
Similar-name and trademark searches, dates and scope: [ ]
Invoice, bank and website presentation: [ ]
Unresolved questions, owner and decision date: [ ]
For a visual identity, the business logo commissioning guide covers file formats and usage arrangements. Decide those conditions before approving the final artwork.
Related guides
Related Otame4 guides currently link to Japanese pages.
Sources and further checks
Public information checked on September 30, 2026. Japanese official sources are linked below; verify current requirements for your situation.
