On the other hand, Izumi and the others, who had initially been authorized to build and use jinrikisha, had difficulty collecting the usage fees from all the drastically-increasing rickshaw men, which, coupled with the fact that the original patent system ('Summary Rules of Monopoly') was inadequate and hard to use, meant they were unable to make any profit.
他方、当初人力車の製造と使用を許可された和泉たちは激増する車夫たちすべてから使用料を取ることができず、また当時の特許制度（「専売略規則」）の不備・使いにくさもあいまってほとんど利益を上げることができなかった。