Company Filing History:
Years Active: 1979-1988
Title: Innovations by Junji Nomura
Introduction
Junji Nomura is a notable inventor based in Fuji, Japan. He has made significant contributions to the field of environmental technology, particularly in the treatment of dissolved fluorine and borate ions in water. With a total of 8 patents, his work has garnered attention for its innovative approaches to water purification.
Latest Patents
One of Nomura's latest patents is a process for the adsorption treatment of dissolved fluorine. This method efficiently separates fluorine or fluorine compounds dissolved at low concentrations in water by utilizing hydrated rare earth oxides or insoluble hydrated rare earth salts. By bringing fluorine-dissolved water with a pH of 2-7 into contact with the adsorbent, fluorine is adsorbed, and can later be desorbed using an alkali solution with a pH of 10 to 14. Additionally, by adding a precipitating agent for fluorine to the desorbed solution, fluorine compounds can be separated through precipitation, allowing the filtrate to be reused as a regenerating solution for the adsorbent.
Another significant patent involves the selective separation of borate ions in water. This process uses a hydroxide or hydrous oxide of a rare earth element as the adsorbent to efficiently separate borate ions dissolved at low concentrations. By contacting borate ion-containing water with the adsorbent, borate ions are adsorbed and can be desorbed with a solution adjusted to a pH of about 2 to 4 or about 12 to 14 for reuse.
Career Highlights
Junji Nomura is currently associated with Asahi Kasei Kogyo Kabushiki Kaisha, where he continues to innovate in the field of water treatment technologies. His work has not only advanced scientific understanding but has also contributed to practical applications in environmental conservation.
Collaborations
Nomura has collaborated with notable colleagues such as Naoya Kominami and Hirokazu Fukumi, further enhancing the impact of his research and innovations.
Conclusion
Junji Nomura's contributions to the field of environmental technology through his patents demonstrate his commitment to addressing critical issues in water purification. His innovative methods for the treatment of dissolved fluorine and borate ions highlight the importance of scientific advancements in promoting sustainability.