A logo of Hitachi Ltd. is pictured at the CEATEC JAPAN 2017 (Combined Exhibition of Advanced Technologies) at the Makuhari Messe in Chiba, Japan, October 2, 2017. REUTERS/Toru Hanai

TOKYO (Reuters) - The head of Japan's Hitachi Ltd 6501.T said the company was aiming to improve its operating margin to double digits by fiscal 2021 from current levels of around 7 percent.

Chief Executive Toshiaki Higashihara, in an interview to reporters, also said Hitachi was not interested in assets being put up for sale by General Electric GE.N.

The U.S. conglomerate wants to get rid of at least $20 billion of assets through sales, spin-offs or other means to turn itself into a smaller, more focused company.