Complex sentence: At the time of the company's inception, Mr. Ueno had little money but he was able to perfect his craft and develop an original style uniquely his own with custom aero kits for various Japanese vehicles.
Split into simpler sentences: At the time of the company's inception, Mr. Ueno had little money. Through his hardships, he was able to perfect his craft and develop an original style uniquely his own with custom aero kits for various Japanese vehicles.