This inventor holds 1 USPTO granted patent. Top assignee: Mitsui Petrochemical Industries, Ltd.. Active years: 1997.
Company Filing History:
Years Active: 1997
Title: Hirokazu Shirage: Innovator in Sludge Treatment Technology
Introduction
Hirokazu Shirage is a notable inventor based in Chofu, Japan. He has made significant contributions to the field of environmental technology, particularly in sludge treatment. His innovative approach has led to the development of a unique membrane apparatus that addresses common challenges in wastewater management.
Latest Patents
Hirokazu Shirage holds a patent for a sludge treatment membrane apparatus. This apparatus features a bubble supplying portion that introduces micro bubbles near the entrance of a flow passage for raw liquid. This design effectively prevents the growth of a gel layer on the membrane surface, allowing for a large filtering capacity while minimizing sludge blockage. The uniform passage of bubbles through the inter-membrane spaces ensures that sludge blocking is evenly mitigated across the entire membrane surface. Additionally, the use of a flat membrane as the filtering medium reduces the frequency of maintenance work required for disassembling and cleaning the membranes. The apparatus also includes an aeration system, a circulating tank, and a filtrate pump, which collectively enhance its efficiency. Notably, the reduction in the relative density of the raw liquid after bubble treatment eliminates the need for a circulating pump, thereby lowering both initial and operational costs.
Career Highlights
Hirokazu Shirage is currently employed at Mitsui Petrochemical Industries, Ltd., where he continues to innovate in the field of environmental technology. His work has garnered attention for its practical applications and cost-saving benefits in sludge treatment processes.
Collaborations
Hirokazu has collaborated with esteemed colleagues such as Sakae Wataya and Kimio Yamamoto. Their combined expertise has contributed to the advancement of technologies in their field.
Conclusion
Hirokazu Shirage's contributions to sludge treatment technology exemplify the impact of innovative thinking in environmental management. His patented membrane apparatus represents a significant advancement in the efficiency and cost-effectiveness of wastewater treatment processes.