The report comes after last week’s news that Denso is proposing to take over Rohm.
Toshiba and Rohm each have about 2.5% market share in power semis, which is a business under threat from low-cost Chinese competition.
It is thought that Rohm and Toshiba may form a 
separate joint venture for their power semi units or, possibly, Denso may take over Rohm plus the Toshiba power semi business.
Rohm invested about $2bn in Toshiba in 2023 through the investment fund Japan Industrial Partners, when Toshiba was restructuring.
