TOKYO—Toshiba Corp said on Wednesday detailed talks on potential take-private deals would make sense only after all strategic options are carefully reviewed, spurning calls from some shareholders to start soliciting buyout bids. The statement comes as the Japanese industrial conglomerate has been in talks with financial and strategic investors, including KKR & Co Inc and three other global private equity firms to seek their ideas for its new strategy. But the latest process is not meant to formally solicit buyout bids for the overall company or some of its assets, puzzling some investors who have questioned why the company has not started an official soliciting process, sources have said. Toshiba’s strategic review should first focus on understanding the approach of potential investors to enhancing corporate value, including their approach to resolving the multiple issues faced in pursuing a take-private option, the board said in a statement. “The board believes that …