Dr. Sōji Yoshikawa (吉川惣司) works at Shibuya Manufacturing (渋谷電気工業製作所). He is very gifted in science and technology, able to brainstorm with the Autobots on a competent level.
After Kremzeek trashed his company, he helped the Autobots defeat Kremzeek.
Kiss Players (Japan)
Dr. Yoshikawa went on to breed Kremzeeks in captivity and created the Yoshikawa Type 5 Auto-Kremzeek Launcher for the Earth Defense Command. The weapon is wielded by Autrooper units and fires a ceramic shell that shatters on impact, unleashing the Kremzeek inside to absorb the electrical energy of any mechanoid it strikes.