The prize medals that laureates receive were designed in 1985 by Mr. Yusaku Kamekura, then President, Japan Graphic Designers Association Inc., and were specially cast at The Japan Mint.
Commenting on his work, Mr. Kamekura said, "In the primary design, I used the image of the sun, the source of all energy. The circles were added to represent perfection and truth."
The certificates of merit that laureates receive were also designed by Mr. Yusaku Kamekura. The certificates were inscribed with the recipients' names and reasons for the awards, as well as the following citation;
WHEREAS, you have advanced the frontiers of knowledge by your original and outstanding achievements in science and technology, and WHEREAS, you have thereby significantly contributed to the progress of the cause of peace and prosperity of all mankind.
THEREFORE, the Japan Prize Foundation, with deep respect for your manifold accomplishments, bestows upon you the Japan Prize.