「漢字」とは「中国古代の黄河文明が発祥の表語文字」です。
実は、「畑」という漢字は、日本で作られた漢字のため、「国字」と言われます。


"Kanji" is a logogram thatoriginated in the ancient Yellow River civilization in China.
Actually, the kanji "Hatake" is classified as "Kokuji" because it is a kanji made in Japan.

「畑」の他にも、「峠（とうげ）」「瓩（キログラム）」「笹（ささ）」「枠（わく）」なども国字です♪
there are also "Kokuji" such as 峠,瓩,笹,枠 etc. :)
It's really hard to understand and distinguish for foreigners but don't worry!
Even Japanese people have no idea about that x)