Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 川内 拓,History of the Camera Industry in RICOH IMAGING COMPANY,Journal of The Society of Photographic Science and Technology of Japan,03695662,THE SOCIETY OF PHOTOGRAPHY AND IMAGING OF JAPAN,2023-11-20,86,4,358-365,https://cir.nii.ac.jp/crid/1390017843875140992,https://doi.org/10.11454/photogrst.86.358