Tadayoshi Yasui

Activus Pharma Co., Ltd. provides research and development services. It engages in drug development based on Activus Pure Nano-particleTechnology (APNT). The company was founded by Yasuo Aoki on October 24, 2006 and is headquartered in Tokyo, Japan.

Jitsubo Co., Ltd. researches, develops, and produces peptides. It operates as a peptide development company that provides solutions to patients using their proprietary technologies for manufacturing and engineering peptides. The firm specializes in peptide synthesis, which enables users to modify amino acid sequence for the creation of physical, chemical, and pharmacological properties. It also engages in development of peptide pharmaceuticals, licensing regarding active ingredient manufacturing technology for peptides, and peptide drug discovery research. The company was founded by Yusuke Kohno and Kazuhiro Chiba in 2000 and is headquartered in Tokyo, Japan.