My Chinese name is 黄明珠, what would it be in Japanese.

 In Japanese, the name 黄明珠 can be transliterated as "Kou Meishu." Here's how each character corresponds to its Japanese equivalent:

• 黄 (huáng in Mandarin) is transliterated to "Kou" in Japanese.
• 明 (míng in Mandarin) is transliterated to "Mei" in Japanese.
• 珠 (zhū in Mandarin) is transliterated to "Shu" in Japanese.

So, putting it together, the Japanese version of your name would be 黄明珠 (Kou Meishu). Please note that transliterations can vary slightly depending on personal preference or specific contexts. see more,....