Hikari Sangyō Gijutsu Shinkō Kyōkai

• Hikari tsūshin, hikari memori yōgo jiten
• 1993 (平成5) 年度光産業の動向
• Hikari disuku no hyōjunka ni kansuru chōsa kenkyū
• Kyōkai 10-nenshi
• Oputoerekutoronikusu no Nihon kōgyō kikaku (JIS)-ka ni kansuru chōsa kenkyū