Masaaki Andou

Title: Innovations by Masaaki Andou: Pioneering Patents in Reverse Osmosis Technology

Introduction

Masaaki Andou, an esteemed inventor based in Ibaraki, Japan, has made significant contributions to the field of membrane technology, specifically in reverse osmosis. With a total of four patents to his name, Andou's work has paved the way for advancements in water treatment solutions that effectively manage solute concentrations and enhance filtration processes.

Latest Patents

Among his latest innovations, Andou has developed methods that improve the efficiency of reverse osmosis membranes. One notable patent is a method of treating reverse osmosis membrane elements, particularly those with a polyamide skin layer. This invention introduces a bromide-containing aqueous solution of free chlorine during treatment, allowing the membrane element to maintain its effectiveness in reducing solute concentration and efficiently rejecting non-electrolytic organic materials, such as boron.

Another significant patent involves methods of running and washing spiral wound membrane modules. This patent describes the intricate process of forming a spiral wound type membrane element, which enhances water filtration by enabling raw water to permeate through a separation membrane. It also details the back wash reverse filtration process, optimizing the performance of these membrane elements by establishing specific flow rates and washing times to ensure maximum efficiency.

Career Highlights

Andou's career is marked by his tenure at Nitto Denko Corporation, where he developed and refined his innovative techniques in membrane technology. His work has established him as a leading figure in the industry, contributing to the advancement of water treatment systems that are crucial in addressing global water challenges.

Collaborations

Throughout his career, Andou has had the privilege of collaborating with notable colleagues, including Hajimu Hisada and Ichirou Kawada. These partnerships have likely aided in the cultivation of innovative solutions within the realm of membrane technology, showcasing the importance of teamwork in the field of invention.

Conclusion

Masaaki Andou's contributions to the world of reverse osmosis technology demonstrate the potential of innovation in solving pressing environmental issues. His patents not only showcase his expertise and dedication as an inventor but also serve as a valuable resource for industries seeking to improve water purification processes. Through his work, Andou continues to inspire future generations of inventors in the field of environmental technology.