Banknotes of Japanese yen are seen in this illustration picture taken September 22, 2022.
Almost a quarter of Japanese manufacturers' production is carried out overseas, according to the latest trade ministry data.
The weak yen drives up the cost of acquiring businesses overseas, although that could be less of a concern for many cash-rich Japanese firms.
At the same time, the weak yen makes Japanese companies cheaper targets for foreign buyers.
For retailers, the weak yen has been particularly painful, as it drives up costs, including for energy and food.