Casio Computer Co., Ltd.

The Nikkei Stock Average fell in the morning session on the Tokyo stock market, closing at 63,240.51 yen, down 1.74 percent from the previous trading day. As the yen strengthened in the foreign exchange market, selling intensified, particularly in export-related stocks, and the Nikkei at one point dropped 2.58 percent to 62,703.47 yen. The dollar briefly fell to the lower 155 yen range, and Finance Minister Satsuki Katayama referred to the coordinated Japan-U.S. intervention on July 31. Kioxia Holdings and TDK were firm on the back of their earnings announcements, while Casio Computer hit its daily limit up. The TOPIX ended the morning session down 2.17 percent at 3,916.61 points, and trading value on the Tokyo Stock Exchange Prime Market was 6.430933 trillion yen.

On August 2, 1972, Casio Computer launched the Casio Mini home calculator. It was a product that miniaturized and lowered the price of calculators, which had been mainly for business use, making them suitable for home use, priced at 12,800 yen. This was achieved by reducing costs in the LSI and key components. With a six-digit display and only addition, subtraction, multiplication, and division functions, it became a massive hit, selling one million units in less than a year after release. This development philosophy of small and cheap became established as a winning pattern for Japanese manufacturing as a whole.