Koyosha Inc. engages in the printing business in Japan. The company offers printing services, including wide color gamut printing, functional antibacterial varnish printing, digital paper proofreader, and original promotional fan; environmentally friendly printing; large format printing, such as solvent inkjet printer; digital services comprising e-book creation, non-contact scanning, image correction, and photo retouching; and creative services. It is also involved in planning, design, DTP, plate making, digital content production, display, on-demand POP, novelty production, and WcLock businesses. The company was incorporated in 1949 and is headquartered in Bunkyo, Japan.