Executives at three top Japanese companies said officials had been in touch asking for investment numbers. Public investment institutions say the prime minister is also leaning on them to pledge tens of billions of dollars to U.S. infrastructure projects such as high-speed rail.
Mr Abe's extraordinary effort to bring gifts highlights his determination to forge a personal bond with the US president. He aims to gain influence over U.S. policy in Asia and head off tensions about trade or the cost of maintaining U.S. forces in Japan.
Mr Abe will arrive in the U.S. on Friday, accompanied by his finance, foreign and trade ministers. After a summit in Washington, he will spend Saturday playing golf with Mr Trump at the president's Mar-a-Lago resort in Florida.
"The most important thing is to reconfirm the importance of the US-Japan relationship in politics, economics and security," said Sadayuki Sakakibara, chairman of Japan's Keidanren business federation.