Another grandson, Toshiharu OKUBO, was a senior managing director of a big trading company, Marubeni, but he was arrested and prosecuted for a bribery case in the Lockheed scandal, and was found guilty.
もう一人の孫大久保利春は丸紅専務で、ロッキード事件に際しては賄賂の一人として逮捕・起訴され有罪判決を受けた。