The Person Who Invented Mobile Toilets in Japan
The following are some key figures and their achievements in the invention of mobile toilets in Japan:
Professor Tadaharu Ishikawa: He is the earliest inventor of the waterless ecological toilet. The waterless ecological toilet is a significant innovation in the field of mobile toilets. Its technology has gradually developed into mainstream types such as waterless packing type, waterless microbial composting type, and waterless biodegradable type. These types of waterless ecological toilets have many advantages. For example, they do not rely on traditional water supply, reducing water consumption. At the same time, through microbial composting or biodegradation, they can effectively treat excrement and reduce environmental pollution, providing an important direction for the environmental protection and sustainable development of mobile toilets.
Yoshinori Kotegawa: As the founder of Kokenawa, a startup in Nagoya, Japan, he has also made unique contributions in the field of mobile toilets. In 2019, influenced by Typhoon Hagibis, he came up with the idea of inventing a portable toilet. After hard work, he launched the world's smallest portable toilet in December 2020. This toilet is 7 cm long and 6.5 cm wide, compact and lightweight, and can be put into a pocket or makeup bag, making it convenient for people to use in various scenarios, especially in emergency situations such as sudden natural disasters. As of now, about 50,000 of these portable toilets have been sold and have been widely recognized by the market.
nendo Design Company: The company has developed the lightweight, easy-to-disassemble, and earthquake-resistant portable toilet minimLET. This portable toilet consists of six parts, including aluminum tubes, C-shaped cushions, and tents. It is cleverly designed, and the materials of each part can be used for multiple purposes. For example, the tent can be used as a cloak to provide users with a certain degree of privacy protection and wind and rain protection. The handbag can be used to hold water to meet cleaning needs during use. This innovative design not only improves the practicality and convenience of mobile toilets but also reflects the efficient use of resources.
