Japanese internet shopping mall giant Rakuten has lost patience with the traditional polite approach in its pursuit of TV company, Tokyo Broadcasting System.

After several weeks spent building a 19% stake in TBS and urging its management to co-operate with Rakuten's vision of a multimedia empire, the latter now threatens a hostile takeover.

But TBS continues to rebuff the online shopping firm's alliance proposals and is expected to reject its demands for integration within a new, jointly-held company.

This could trigger an attempt by Rakuten to increase its shareholding to one-third of TBS, with which it could propose nomination of its officials to the board. It would also ask shareholders to support its integration strategy.

Meantime, TBS has lined up a 'poison pill' defence against Rakuten's predations which will dilute share values and increase takeover costs.

It now awaits its unwelcome suitor's next move.

Data sourced from Asahi Shimbun Online; additional content by WARC staff