Tiger Calculating Machine Company
1923 - 1970s
Tiger Calculating Machine Company was founded by Ohmoto Torajirou in 1923 in Osaka as Ohmoto Tekko. He invented a calculating machine known as the "Tiger" and with it's popularity he renamed the company as the Tiger Calculating Machine Company.
Katsunori Kadokuram, "The History of Japanese Mechanical Calculating Machines," http://www.xnumber.com/xnumber/japanese_calculators.htm (accessed 07/15/2015)