Company Filing History:
5 out of 42,496 
1 out of 162 Years Active: 1991-1998
Title: Mitsunari Nakamura: Innovator in Nuclear Reactor Technology
Introduction
Mitsunari Nakamura is a prominent inventor based in Hitachi, Japan. He has made significant contributions to the field of nuclear reactor technology, holding a total of 5 patents. His innovative approaches have the potential to enhance the efficiency and safety of nuclear power generation.
Latest Patents
One of Nakamura's latest patents is a fuel loading method designed for nuclear reactors. This method allows a reactor to operate up to the second cycle without exchanging the fuel. Low-enrichment fuel is discharged from the core at the end of the second cycle, while high-enrichment fuel, which has an average enrichment higher than that of replacement fuel, is discharged at the end of the third cycle. This high-enrichment fuel is then reloaded into the core at the end of the fifth cycle. The invention aims to increase the discharge exposure of initially loaded fuel, thereby reducing the number of replacement fuel pieces required.
Another notable patent involves the design of the initial core of a nuclear power plant. This core consists of various fuel assemblies with different average enrichments of uranium-235. The configuration includes four fuel assemblies with the lowest average enrichment forming a square-shaped cell, while three fuel assemblies with the highest average enrichment create an L-shaped cell at the corners of the square cells. This innovative arrangement optimizes the performance of the nuclear reactor.
Career Highlights
Nakamura has worked with notable companies such as Hitachi, Ltd. and Hitachi Engineering Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in nuclear technology.
Collaborations
Throughout his career, Nakamura has collaborated with esteemed colleagues, including Junichi Koyama and Katsumasa Haikawa. These partnerships have contributed to the advancement of his research and inventions.
Conclusion
Mitsunari Nakamura is a key figure in the field of nuclear reactor technology, with a focus on improving fuel loading methods and core designs. His contributions are vital for the future of efficient and safe nuclear energy production.