Location History:
- Gunma, JP (1990 - 2005)
- Ora-gun, JP (2006)
- Oizumi-machi, JP (2001 - 2007)
Company Filing History:
Years Active: 1990-2007
Title: Innovations by Hirofumi Iinuma in Water Treatment Technology
Introduction
Hirofumi Iinuma is a notable inventor based in Oizumi-machi, Japan. He has made significant contributions to the field of water treatment technology, holding a total of 10 patents. His work focuses on developing methods and devices that enhance the efficiency of water purification processes.
Latest Patents
Iinuma's latest patents include a water treatment device and a corresponding method aimed at removing sol-form microparticles and nitrogen components from CMP wastewater. The preferred embodiment of this invention utilizes a filtration treatment with a filter device that incorporates a gel-form second filter. This innovative approach effectively removes sol-form microparticle components from CMP wastewater. Additionally, nitrogen components are eliminated through an electrochemical treatment using electrodes. Notably, both treatments can be conducted in separate tanks or within the same tank, allowing for a space-saving design in water treatment devices. Another significant patent involves a filtering method for colloidal solutions, specifically targeting wastewater from the CMP process. This method employs a gel membrane formed on the surface of a plastic filter, with the addition of a coagulant or pH adjuster to facilitate the coagulation of sub-micrometer particles.
Career Highlights
Hirofumi Iinuma is associated with Sanyo Electric Co., Ltd., where he has been instrumental in advancing water treatment technologies. His innovative solutions have garnered attention in the industry, contributing to more sustainable practices in wastewater management.
Collaborations
Iinuma has collaborated with notable colleagues, including Motoyuki Tsuihiji and Hiroyuki Umezawa. Their combined expertise has further enhanced the development of effective water treatment solutions.
Conclusion
Hirofumi Iinuma's contributions to water treatment technology exemplify the impact of innovative thinking in addressing environmental challenges. His patents reflect a commitment to improving water purification processes, making significant strides in the field.