Naoto Hitotsuyanagi

Title: Naoto Hitotsuyanagi: Innovator in Water Treatment Technologies

Introduction

Naoto Hitotsuyanagi is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of water treatment, holding 2 patents that showcase his innovative approach to solving complex environmental challenges.

Latest Patents

One of Hitotsuyanagi's latest patents is a detergent for washing selectively permeable membranes. This invention proposes a detergent and method that efficiently cleans membranes that have deteriorated in performance, such as flux, without causing damage to the membranes or posing safety risks to humans and the environment. The detergent contains a polyol with a molecular weight not exceeding 400 and may include an organic solvent.

Another notable patent is a method for treating fluoride-containing water. This method involves adding a calcium or aluminum compound to fluoride-laden water while adjusting the pH to a range of 6 to 8. The process includes a membrane-separation step that effectively separates the water into a permeated solution and a concentrated suspension, ensuring high-quality treated water without scaling issues in the apparatus used.

Career Highlights

Naoto Hitotsuyanagi is currently associated with Kurita Water Industries Ltd., where he continues to develop innovative solutions for water treatment. His work focuses on enhancing the efficiency and safety of water purification processes.

Collaborations

Hitotsuyanagi has collaborated with notable colleagues, including Takafumi Murakami and Isamu Katoh, to advance research and development in water treatment technologies.

Conclusion

Naoto Hitotsuyanagi's contributions to water treatment through his innovative patents reflect his commitment to improving environmental safety and efficiency. His work continues to influence the industry positively.