No, burping is generally not considered respectful in Japan. While some cultures might view burping after a meal as a sign of appreciation for the food, in Japan, it's typically viewed as poor manners.
Japanese etiquette generally emphasizes minimizing disruptive or impolite sounds while eating. While slurping noodles is an exception and considered acceptable (even a sign that you're enjoying the food), other sounds like smacking lips, burping, and other eating noises are typically frowned upon. It's best to avoid burping during or immediately after a meal if possible. If you can't help it, a polite "excuse me" (sumimasen - すみません) is recommended.
