Japan power cords have PSE approvals, their shape is equivalent to the North American NEMA standards plugs. In Japan, all plugs have two small round holes in the pins. The Japanese manufacturing standard JIS 8303 adopts stricter size requirements, different marking requirements and mandatory testing and approval by Japanese testing agencies. The applicable cables must comply with JIS C3306, the DENAN  approval is required for plug and connector. It is also used in some other countries. Note: Japan has both 50Hz and 60Hz power frequency.

Japan Power Cord,PSE JET Certified JIS 8303 Standard 3Wire Grounded Plug
Japan Power Cord,PSE JET Certified JIS 8303 Standard 2Wire Nongrounded Plug
Japan Power Cord,PSE JET Certified JIS 8303 Standard 2Wire Nongrounded Waterproof Plug
Japan Extension Cord,PSE JET Certified Waterproof 3Wire Grounded Socket Power Supply Cord