On October 19, 2023, TOPPAN Inc. (TOPPAN), a TOPPAN Group company and wholly owned subsidiary of TOPPAN Holdings (TYO: 7911), and Dai Nippon Toryo Co., Ltd. (TYO: 4611) (DNT) announced that they have executed a patent licensing agreement for the use of TOPPAN’s extracellular vesicle (exosome) detection technology using immunochromatography. The agreement provides a non-exclusive license to use the patent for TOPPAN’s technology in the design, development, fabrication, and sale of DNT’s Exorapid-qIC™ Immunochromatography Kit for Extracellular Vesicles. TOPPAN hopes the use of its technology will contribute to advancing techniques for early diagnosis and preventive medicine. DNT exhibited Exorapid-qIC™ for the first time at a booth at the 10th Academic Meeting of the Japanese Society for Extracellular Vesicles, which was held on October 23 and 24.