All practical guides

Own products Reviewed: 2026-09-18

Specifications, identity, price and support.

Maintain consistent own-product information before and after purchase.

Go beyond appearance with verifiable specifications and a clear support contact.

Review outline — not a statutory sequence of procedures
  1. 01

    Define specifications

    Material · Dimensions · Use

  2. 02

    Align identifiers

    Model · SKU · JAN

  3. 03

    Review labelling

    Price · Description · Precautions

  4. 04

    Connect after-sales support

    Manual and support contact

Models and product identifiers

GTINs, including JAN codes, identify trade items. GS1 Japan explains that brand owners such as distributors, manufacturers or importers assign them. Manage models, SKUs and JAN codes according to their different purposes.

Keep the basis for a price

Before using a suggested retail price in a comparison, check prior publication and how it was actually set. The Consumer Affairs Agency warns that prices set at a particular retailer's request may mislead. A webpage alone does not validate a comparison price.

Keep product information consistent

Align product pages, manuals and support responses. State warranty periods and procedures per product rather than making blanket promises about undecided terms.

  • Specifications: material, dimensions, capacity, accessories and use.
  • Identification: model, product codes and price effective date.
  • Support: manual, precautions and contact details.

Before you enquire

Start with the documents you have. Missing items can be identified during review.

  • Brand name and rights
  • Model, SKU and JAN where assigned
  • Specifications and product photos
  • Price type, tax treatment and effective date
  • Manual and precautions
  • Product-specific support terms

Frequently asked questions

Do you build brands for other companies?

This is Ryuso's own product planning and sales business, not a brand-building agency service.

Can I enquire about distributing your products?

Tell us the product, quantity and intended use. We will check published information and actual supply conditions.

Sources and references

Sources reviewed: 2026-09-18 / Regulatory information and our preparation advice are distinguished. Applicability depends on product specifications and transaction conditions.

What does my product need?

Share your product and current status so we can clarify the scope and next checks.

Explore the related service