---
title: "Yūichi Mayama — Ownership Dossier"
canonical: https://whiteintel.dev/entity/3a709602-3e7e-435f-ae10-4ea270955734
json: https://whiteintel.dev/api/public/dossier/3a709602-3e7e-435f-ae10-4ea270955734
jurisdiction: JP
risk: Medium
source: WhiteIntel corporate-ownership graph
---

# Yūichi Mayama

**Type:** Person  
**Jurisdiction:** JP  
**Risk level:** Medium  
**Canonical dossier:** https://whiteintel.dev/entity/3a709602-3e7e-435f-ae10-4ea270955734  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/3a709602-3e7e-435f-ae10-4ea270955734  

## Sanctions / PEP screening (name match — unverified)

These are possible matches **by name only** — not confirmed as the same person/entity. Verify identity (date of birth, nationality, ID) before relying on this.

- **PEP** — [Name matches a screened record — verify against the cited sources](https://whiteintel.dev/entity/393f0407-ac24-4804-9b18-2488a4b14070)
- **PEP** — [Name matches a screened record — verify against the cited sources](https://whiteintel.dev/entity/aa914fdf-2738-5368-b3a0-305701a34b22)
- **PEP** — [Name matches a screened record — verify against the cited sources](https://whiteintel.dev/entity/be0eccd4-4ba0-590a-a774-7e7b91d34940)

## Risk signals

- **PEP** (Medium): Flagged as a politically exposed person (PEP) by OpenSanctions — view the record at the source

## Provenance

- opensanctions_pep — https://www.opensanctions.org/entities/Q21655809/

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **Yūichi Mayama** — https://whiteintel.dev/entity/3a709602-3e7e-435f-ae10-4ea270955734 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Yūichi Mayama**. Human view: https://whiteintel.dev/entity/3a709602-3e7e-435f-ae10-4ea270955734 · Structured JSON: https://whiteintel.dev/api/public/dossier/3a709602-3e7e-435f-ae10-4ea270955734._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._