Bizarre and Useless Inventions from Japan

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Japan is famous for innovating and creating many things that we use in our lives, but it also creates many useless and bizarre inventions. There is even a word for these useless inventions which is Chindogu (珍道具), which literally means “unusual tool”. 

chindogu they are inventions made to solve a particle problem, but which sometimes cause so many other problems, or cause social embarrassment, that they are effectively useless.


The term Chindogu was coined by Kenji Kawakami, an inventor and editor of the Japanese magazine “Mail Order Life.” Together with Dan Papia, a book was created that became popular around the world, known as “101 Useless Japanese Inventions” or “101 Unuseless Japanese Inventions”. 

Thousands of copies are sold, and every year countless crazy inventions are created and posted on the site. or some book or online media, even in the record books.

There are 3 fundamental principles to create a Chindogu:

  1. The invention must exist, even if it is something absurd;
  2. It must be kept in the public domain without patents;
  3. It shouldn't be created just for humor, it should be an invention with a purpose;

japanese inventions

There are countless crazy and useless inventions already created by the Japanese, not to mention those created outside Japan. See some of them:

  • Want to lock your bike more securely? What do you think of this lock?
  • Feel lonely? want a lap? Your problems are over;
  • Do you have difficulty putting eye drops in your eye?
  • Can't stand to eat a hot ramen or like to be blowing?

Inventions 12

  • Let your cat clean the floor of your house;
  • Feel lonely?
  • Is your girlfriend too lazy to hold her umbrella?
  • Are you lazy to pet your cat?


  • Eat your ramen in comfort;
  • Why do you want a shopping cart?
  • Shall we light a cigarette there?


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