Japan Eyewear Holdings Co. Ltd. engages in plan, design, manufacture, and sale of eyewear. It operates through the Kaneko Optical and Four Nines segments. The Kaneko Optical segment offers products under the brand Kaneko Optical. The Four Nines segment provides eyewear under the brand Four Nines. The company was founded on July 29, 2019 and is headquartered in Sabae, Japan.