About Lumishima

Lumishima Co., Ltd. (株式会社光の島), headquartered in Kanagawa, Japan, specializes in cross-border spare-parts sourcing and turnkey solutions for radiation therapy and medical imaging equipment, serving the medical equipment maintenance market in China and Asia-Pacific.

Medical institutions in Japan, Europe, and the U.S. replace equipment on short cycles, generating a steady supply of well-maintained OEM spare parts and used systems. Backed by long-standing spare-parts channels across the U.S., Europe, and Japan, we deliver this reliable supply — magnetrons, klystrons, CT tubes, MLC boards, RF amplifiers, cold heads, detectors, and even complete LINAC systems — to the clinical front line efficiently and compliantly.

We serve distributors, ISOs, and OEMs, with an emphasis on full lifecycle documentation and traceability: wherever possible, we provide verifiable provenance and test history for every unit, and take end-to-end responsibility for evaluation, de-installation, crating, export customs clearance, and international logistics through installation and acceptance — one partner for the entire cross-border chain.