Carlyle Group Inc. said it is acquiring Japanese analytical instruments manufacturer Rigaku Corp. in partnership with Hikaru Shimura, president and CEO of Rigaku.

Carlyle will own a roughly 80% stake in a new entity that will acquire Rigaku, and Shimura will own a roughly 20% stake.

Carlyle did not disclose financial details of the transaction. Nikkei Asia reported Jan. 6 that Carlyle will invest nearly ¥100 billion, or about $970 million, in the deal.

Carlyle will make the investment through its $2.3 billion Japan-focused fund and the U.S. private equity firm plans to invest over $9 billion into Japanese businesses over the next three to five years, the report added.

Carlyle will support Rigaku's global expansion by sending its directors to aid the company in opening new sales channels and product development and pave the way for an initial public offering within the next few years, the report noted. The deal could pave the way for an IPO of Rigaku in the next few years, according the report.

Nikkei added that Carlyle's previous investments in Japan have been in mid-sized companies.

As of Jan. 5, US$1 was equivalent to ¥102.74.