# Cartken Courier at Tsukuba, Japan: deployment

Canonical ID: `5169b024-8231-49c5-88d3-81434b86a3e1`

Rakuten robot delivery service in Tsukuba using [Cartken](/companies/cartken.md) robots. Delivers from Seiyu supermarket and Starbucks, day and night.

**Trust tier:** Catalog entry · 1 source · not yet field-verified

_Last updated: 2026-08-14_

- **Slug:** cartken-tsukuba-japan-rakuten
- **Status:** operational
- **Model:** [Cartken Courier](/models/cartken-courier.md) (id: `308e996f-c675-4088-a0c5-fee7b9f9c6b9`)
- **Category:** [Sidewalk delivery](/sidewalk-delivery)
- **Company:** [Cartken](/companies/cartken.md) (id: `1dc678d5-852c-4568-9ace-5814efb7cc4b`)
- **Location:** [Tsukuba, Japan](/locations/tsukuba-japan-cartken.md) (id: `3d739e8b-2880-43a7-9de0-618d1932a0a6`)
- **First seen:** 2022-01-01T00:00:00.000Z

## Verification log (0, append-only)

_No verifications recorded._

## Sources (1)

1. https://www.facebook.com/TheJapanNews/posts/2446111885539074/

## Verified answers

- [Where do delivery robots operate?](/where-do-delivery-robots-operate.md)
- [Sidewalk robot laws: every US state and major market](/sidewalk-robot-laws.md)
- [Delivery robot specs compared](/delivery-robot-specs-compared.md)

## Common questions

### What is the Cartken Courier deployment at Tsukuba, Japan?

Cartken Courier, built by Cartken, is recorded as a deployment at Tsukuba, Japan on the DEPLOY registry. Cartken operates the deployment directly.

### Who operates Cartken Courier at Tsukuba, Japan?

Cartken, the manufacturer of Cartken Courier, operates this deployment directly. This is a maker-deploys-its-own-product arrangement rather than a customer pilot.

### When did the Cartken Courier deployment at Tsukuba, Japan go live?

The deployment is recorded as starting January 1, 2022 on the DEPLOY registry. Earlier activity may exist but is not yet sourced.

### Have there been incidents at the Cartken Courier deployment at Tsukuba, Japan?

No active incidents affecting this deployment are recorded on the DEPLOY registry. Absence of recorded incidents is not a guarantee no incident occurred; DEPLOY records only sourced incidents and suppresses retracted ones.


_API: GET /v1/robots/5169b024-8231-49c5-88d3-81434b86a3e1 · feeds: GET /v1/feeds?deploymentId=5169b024-8231-49c5-88d3-81434b86a3e1 · canonical URL: /deployments/cartken-tsukuba-japan-rakuten_