The Japanese word Nissan (日産) is an acronym meaning "manufactured in Japan" (as in Nissan Motor). It appears on camera-related companies on two occasions.
Nissan Kōgaku Kōgyōsha (1930s)
In 1939, the Semi Victor and Victor Six and their successors the Semi Condor and Condor Six were advertised by a company called Nissan Kōgaku Kōgyōsha (日産光学工業社, meaning "Nissan Optical Industries"). Its address was Hongō-ku Yushima-Tenjin-chō 1–105 in Tokyo (東京市本郷区湯島天神町1–105), and the nature of its relationship with Motodori is unknown.
| Centre Six.|
Nissan Kōgaku (1950s)
The Centre Six 6×6 folder released at the end of 1951 is attributed to Nissan Kōgaku and has NISSAN KOGAKU markings. This company is otherwise unknown.
- Asahi Camera (アサヒカメラ) editorial staff. Shōwa 10–40nen kōkoku ni miru kokusan kamera no rekishi (昭和10–40年広告にみる国産カメラの歴史, Japanese camera history as seen in advertisements, 1935–1965). Tokyo: Asahi Shinbunsha, 1994. ISBN 4-02-330312-7.