The head of Japan's unofficial mission in Taipei has indicated that Tokyo may further ease its restrictions on official exchanges with Taiwan and pave the way for a trip to the country by top bureaucrats from ministries and agencies, it was learned Tuesday.

Katsuhisa Uchida, chief of the Taipei Office of the Interchange Association, reportedly said Tokyo-Taipei ties are now mature and that "higher-level policy dialogue will become necessary."

Uchida made the remark in a recent interview with the local bureau of NNA, a Japanese-language news organization based in Tokyo that distributes mainly Asian business news on the Internet.