I’ve been curious about Okamoto Corporation’s “Marude Kotatsu” series
and finally bought one this year. There were various types to choose from, but I decided on the “Socks Supplement Marude Kotatsu Ankle Warmer”.
When I looked at the back, I saw a patent number (Japanese Patent No. 6043982).
Reading the patent bulletin, I found that the invention was characterized by its material and shape, which were designed to stimulate the “acupuncture points” on the ankles with pinpoint accuracy.
The oval part with a different color seems to stimulate the acupuncture points. When I tried wearing it, it didn’t get too hot, but I definitely felt like it was warming me up from the inside. I like that it makes it easy to stimulate the acupuncture points and that it can be expected to improve your constitution.
I want to get through the cold winter by keeping my feet warm. (Marron)