When handling Japanese names in URLs, it's recommended to encode the characters using percent-encoding, which is a way of representing characters in a URL using a specific set of characters. This helps ensure that the URL can be properly transmitted over the internet and handled by various systems and applications.
In the case of Japanese characters, you can encode them using the UTF-8 character encoding, which provides a standardized representation of characters in a URL. To encode a Japanese character, you replace each character with its percent-encoded representation, which consists of the percentage symbol (%), followed by the ASCII code of the character in hexadecimal format.
For example, the Japanese character "日" (meaning "day" or "sun") can be encoded as "%E6%97%A5". When encoding a Japanese name, you would encode each character in the name in this way, and then include the encoded characters in the URL.
It's also important to note that some systems and applications may not properly handle encoded characters in URLs, so it's important to test your URLs to ensure they are properly handled by your intended systems and applications.