This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Refine Holdings Co., Ltd.. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Hideki Ishizawa and His Liquid-Liquid Extraction Invention.
Introduction
Hideki Ishizawa is an inventor based in Tokyo, Japan, associated with Refine Holdings Co., Ltd. His listed patent concerns equipment for liquid-liquid extraction, a process used to separate substances between two liquid phases.
Latest Patents
Ishizawa is credited with 1 patent, titled “Liquid-Liquid Extraction Device.” The invention describes an apparatus with two or more extraction towers arranged in parallel. Each tower has ports for supplying and discharging heavy and light liquids, with the heavy-liquid channels connected in series.
At least two towers connect through piping to separate diaphragm chambers. Each chamber has a closed space with a diaphragm whose volume is adjusted by an operating drive section. Pressure-regulating chambers and on/off valves in the piping help control internal pressure.
Career Highlights
The available information identifies Ishizawa’s work through this extraction-device patent and his association with Refine Holdings Co., Ltd. The patent’s design combines multiple extraction towers with diaphragm chambers and pressure-control components.
Collaborations
Junya Ohno and Tomokiyo Takeyama are listed as Ishizawa’s coworkers. The provided information does not specify their roles in the patent or the invention.
Conclusion
Hideki Ishizawa’s listed patent presents a multi-tower liquid-liquid extraction apparatus designed with connected heavy-liquid channels and pressure-regulated diaphragm chambers.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile