Topcon Corporation (????????, Kabushiki-gaisha Topukon?) is a Japanese manufacturer of optical equipment for ophthalmology and surveying. September 1932—TOPCON was established based on the surveying instruments division of K.Hattori & Co.,Ltd. (currently SEIKO HOLDINGS CORPORATION) in order to manufacture the optical instruments for the Japanese Army, which are surveying instruments, binoculars and cameras. Corporate Name: Tokyo Kogaku Kikai Kabushikikaisha (Tokyo Optical Co., Ltd.) Head Office: 2, Ginza 4-chome, Kyobashi-ku, Tokyo Factories: Toshima-ku and Takinogawa-ku, Tokyo April 1933—Built head office and main factory at 180, Shimura-motohasunuma-cho, Itabashi-ku, Tokyo (current address) and moved head office functions there.