The linkes below shows a Flow-Chart Concerning Design Prosecution in JPO.
I hope that this will help your understanding.
The required materials for design registration in Japan are listed
— Names and addresses of the design creator(s) and applicant
Electronic data of drawings
— Description of the product (Different from many other countries, description is usually required to file a design application in Japan.)
— Application number and filing date of priority application, if any
— A power of attorney is not required unless the case is appealed.
It will take 4 to 8 months to receive the first office action.
Should you have any questions, please feel free to contact us.