1. Passport: Provide your original passport with a validity of at least six months beyond your intended stay in Japan. Make sure your passport has at least two blank pages for visa stamps.
2. Visa Application Form: Fill out the visa application form accurately and completely.
3. Passport Photos: Provide two recent passport-sized photos with a white background. The photos should meet the specific requirements set by the embassy or consulate.
4. Itinerary: Submit a detailed travel itinerary, including your planned dates of entry and exit, places you intend to visit, and accommodation details.
5. Round-Trip Flight Tickets: Provide a copy of your round-trip flight itinerary or e-ticket showing your entry and exit dates from Japan.
6. Proof of Accommodation: Provide evidence of your accommodation arrangements in Japan, such as hotel reservations or a letter of invitation from a host.
7. Financial Proof: Show proof of sufficient funds to cover your expenses during your stay in Japan. This can be in the form of bank statements, income certificates, or other financial documents.
8. Employment Certificate: Submit a letter from your employer stating your position, salary, and approved leave of absence (if applicable). If you are self-employed, provide business registration documents.
9. Income Tax Return: Provide a copy of your income tax return from the previous year or other proof of your financial stability.
10. Additional Documents: Additional documents may be required based on your specific circumstances, such as a letter of explanation, proof of ties to your home country, or a guarantor letter if someone in Japan is sponsoring your trip.

The duration of stay granted on a Japan tourist visa is typically up to 90 days. This allows visitors to stay in Japan for tourism purposes, such as sightseeing, visiting friends or relatives, or participating in cultural events. The exact duration of stay will be determined by the immigration officer at the port of entry.

Japan visa processing time typically takes around 5 to 10 working days to be processed. However, processing times may be longer during peak travel seasons or due to specific circumstances. It’s advisable to apply for the visa well in advance of your intended travel dates to allow for any potential delays.