Did Japanese Buddhists once use sky burial?

In the Chinese Wikipedia article on sky burial , there's a section saying that sky burial is illegal in Japan: > 棄屍嫌疑 > > 在某些地方，天葬的行為，可能觸犯遺棄屍體的罪行。 > > 日本 > > 刑法第190條（死体損壊罪） Google translation: > Dumped suspect [My assumption for translation: Illegality of > abandoning bodies] > > In some places, burial behavior may violate abandoned corpses offense. > > Japan > > Penal Code section 190 (dead body damage Huai crime) Did Japanese Buddhists once use sky burial for their dead? Or is the ban just a broader ban that just happens to include sky burial?