ウォシュレットが開発されたのはいつ
In the early 1960s the father of Arnold Cohen of Brooklyn, New York, US had a medical condition that caused pain in the rectal area. Arnold designed a toilet seat bidet system, which featured a nozzle that sprayed warm water and blew hot air. In 1964 Arnold patented his design, founded the American Bidet Company, and started marketing the innovative bidet product, dubbed "American Sitzbath", by using large ads and attending trade shows. It was intended for use at hospitals by patients who had difficulty using toilet paper or reaching around to wipe themselves. Arnold installed thousands of these seats all over the suburbs of New York, and the company had offices all across the country, but due to cultural barriers advertising was almost impossible and few wanted to run the ads that the company produced.
1960s