Japan celebrated its 50th anniversary of achieving UHC in 2011. All residents are required by the law to have health insurance coverage, either through their employer or via the government Citizens Health Insurance scheme.
The health insurance system is funded through taxation and individual contributions. Under the government system, the patient must pay 30% of the costs, unless you are on a low income, or have a chronic condition or disability. This can be covered by private health insurance. Medical fees are strictly regulated by the government to keep them affordable.