Hiroshi Kojima

Title: Hiroshi Kojima: Innovator in Uranium and Thorium Recovery

Introduction

Hiroshi Kojima is a notable inventor based in Hasuda, Japan. He has made significant contributions to the field of nuclear materials through his innovative processes. His work focuses on the recovery of uranium and thorium, which are essential for nuclear fuel production.

Latest Patents

Hiroshi Kojima holds a patent for a process aimed at recovering uranium and/or thorium from a liquid containing these elements. The patent describes a method that involves creating a precipitate primarily composed of amorphous silica by adding water glass to the liquid. This precipitate captures the uranium and/or thorium, which is then treated with acid to elute the captured materials. The process further includes adding ammonia or hydrogen peroxide to form a precipitate of ammonium salt or peroxide, which can be filtered out. This innovative method allows for the recovery of high-purity solid uranium and/or thorium, making it reusable for the manufacture of nuclear fuel material.

Career Highlights

Hiroshi Kojima is associated with Mitsubishi Kinzoku Kabushiki Kaisha, where he has applied his expertise in nuclear materials. His work has contributed to advancements in the efficiency and purity of uranium and thorium recovery processes.

Collaborations

Hiroshi Kojima has collaborated with notable colleagues such as Eiichiro Nakai and Shoichi Tanaka. Their combined efforts have furthered the development of innovative solutions in the field of nuclear materials.

Conclusion

Hiroshi Kojima's contributions to the recovery of uranium and thorium highlight his role as an important inventor in the nuclear industry. His patented process not only enhances the efficiency of material recovery but also supports the sustainable use of nuclear resources.