The first home delivery locker was a 100V model developed 25 years ago. At the time, the main needs were for summer and New Year gifts, i.e. it was used twice a year. A few years later, we went on to develop a battery-operated model, but sales were poor. In 2007, when e-commerce showed signs of expanding, we released the current COMBO, which resolved all the issues back then. It wasn't electrically powered, so we could reduce the cost while integrating expanded specifications, including options for door direction, size, and installation. This year, the COMBO was suddenly thrust into the limelight with the recent news on how courier redeliveries are becoming a social problem, in combination with the results of the Panasonic trial in Awara City. We want to contribute to solving social problems by expanding our lineup of environmentally friendly products and services and fully supply what people want in order to become an intrinsic part of the social infrastructure.