Bain Capital is seeking more financial support from Apple as it tries to seal its acquisition of Toshiba’s memory chips business, according to a person familiar with the matter. The US buyout firm is now asking the iPhone maker for about $7 billion in capital, up from a previous agreement for about $3 billion, said the person, who asked not to be identified because the matter is private. The revised proposal would include about $1 billion for equity and $6 billion in debt, the person said, a part of a total bid of roughly $19 billion. Apple representatives did not immediately respond to requests for comment.

)