HONG KONG, Sept 20 (Reuters) - Japan's Rigaku, which

makes X-ray testing tools, is aiming to raise up to $888 million

in its initial public offering in Tokyo, according to a term

sheet reviewed by Reuters.

Rigaku, owned by private equity firm Carlye Group, is

eyeing a market value of $2 billion after the offering, the term

sheet said.

Rigaku is planning to start bookbuilding on Oct. 10 and

debut on Oct. 25, the term sheet said.