Japanese rockets are primarily developed by the Japan Aerospace Exploration Agency (JAXA) and are used for various purposes, including satellite launches and scientific research. The most notable rocket series is the H-IIA, which has been successful in deploying satellites into orbit since its first launch in 2001. In addition to the H-IIA, Japan has also developed the Epsilon rocket, designed for smaller payloads and lower costs. These rockets contribute to Japan's growing presence in the global space industry and support international collaborations in space exploration and technology development.