Depends on where you use it. If your product is to be sold in Japan, you must apply for a design patent in Japan. If you use them in China, you only need to apply for an appearance patent in China. If it is produced, sold or exported to Japan in China, it is best to declare it in China first, and then submit the domestic priority certificate to apply for an appearance patent in Japan.

I hope the above answers can help you!

For domestic declaration in the name of an individual, the application fee is 1000 yuan and the authorization fee is 395 yuan. If you are sure to apply for a Japanese appearance patent, you can continue to ask me for QQ number, and then I will give you an offer (due to relevant restrictions, you can't send QQ number information in your answer, please forgive me).