Complex sentence: The company issued shares and was listed on the stock exchange in 1961, and moved across to a new system of administration with Shojiro Ishibashi as the chairman, and Kanichiro Ishibashi as the president.
Split into simpler sentences: The company issued stock shares and was listed on the stock exchange in 1961. A new system of administration was ushered in by Shojiro Ishibashi as the chairman, and Kanichiro Ishibashi as the president.