Company Filing History:
Years Active: 1997
Title: Innovations by Jun'ya Kaneda
Introduction
Jun'ya Kaneda is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of welding, particularly in the context of neutron-irradiated materials. With a total of 2 patents, his work addresses critical challenges in nuclear reactor technology.
Latest Patents
Kaneda's latest patents include a method of welding neutron-irradiated metallic material. This innovative technique involves preheating the portion to be welded under specific temperature and time conditions. This process allows chromium carbide (Cr.sub.23 C.sub.6) to precipitate in the grain boundaries of the stainless steel, which helps to trap helium atoms generated during nuclear reactions. As a result, the formation of gas bubbles in the grain boundaries is reduced, thereby preventing cracks during welding.
Another significant patent is a method for repairing structural materials of nuclear reactor internals. This method involves covering a defect in a neutron-irradiated structural material with a plate. The plate is then welded to the structural material by applying localized pressure and generating thermal energy at the contact surfaces. This innovative approach ensures the integrity of the reactor internals.
Career Highlights
Jun'ya Kaneda is associated with Hitachi, Ltd., a leading company in technology and engineering. His work has been instrumental in advancing welding techniques that enhance the safety and reliability of nuclear reactors.
Collaborations
Kaneda has collaborated with esteemed colleagues such as Takahiko Kato and Keiichi Uraki. Their combined expertise has contributed to the development of innovative solutions in the field of nuclear engineering.
Conclusion
Jun'ya Kaneda's contributions to welding technology, particularly in the context of neutron-irradiated materials, highlight his role as a significant inventor in the field. His innovative methods not only improve welding processes but also enhance the safety of nuclear reactors.