A leading wheelchair maker and a hospital operator from Japan are seeking to expand in Thailand with an eye on products and services for the elderly as the Southeast Asian country's population rapidly ages.

Matsunaga Manufactory Co., based in the of Gifu, expects to double sales of its premium wheelchair model in Southeast Asia this year from 40 million baht (¥135.6 million) in 2016, with Thailand accounting for half the revenue.

It plans to promote advertising in a bid to approach the local mass market, targeting rising demand for services for senior citizens.