From Japan comes a case originally investigated by renowned Japanese researcher Kinichi Arai. This writer was unable to locate any sources other than blogs written about the case many years later, but it’s worth sharing.
According to the account on the site Great Plains Paranormal (reader mode is strongly suggested) at around 3:00 a.m. on April 6, 1974, Hokkaido farmer, Yoshihiro Fujiwara, was awakened by a loud knocking on his door, and the barking and howling of his dog. He opened the door and almost collided with a three-meter-tall creature (another account describes it as being 3 feet tall) wearing a transparent vinyl suit.