Koji Nakatsuji is a prominent inventor based in Ehime, Japan. With a remarkable portfolio consisting of 10 patents, he has made significant strides in the field of materials science, particularly in the area of separation membranes.

Latest Patents

Koji Nakatsuji's latest inventions showcase his expertise and innovative approach. One of his notable patents is for a composite semipermeable membrane, which includes a supporting membrane with a substrate and a porous supporting layer. The invention introduces a separation functional layer that comprises a crosslinked polyamide and a hydrophilic polymer. The unique feature of this invention is the specific ratio of oxygen to nitrogen atoms (O/N ratio) on the surface of the separation functional layer, facilitating advanced applications in filtration and purification.

Another significant patent focuses on a separation membrane with high permeability and the selective removability of divalent and monovalent ions. This invention integrates a supporting membrane and a specially designed separation functional layer, which consists of a polymerized product of polyfunctional amines and acid halides. The innovative hollow protuberant structure of this layer enhances the membrane's performance and versatility in various applications.

Career Highlights

Koji Nakatsuji has built a successful career at Toray Industries, Inc., known for its focus on advanced materials and technology. His contributions to the field have not only advanced scientific understanding but have also paved the way for practical applications in water purification and membrane technology. His work exemplifies the convergence of innovative thought and practical engineering.

Collaborations

Throughout his career, Nakatsuji has collaborated with notable colleagues, including Masahiro Kimura and Tsuyoshi Hamada. These partnerships have fostered a dynamic environment for innovation and have contributed to the successful development of his patented technologies.

Conclusion

In summary, Koji Nakatsuji's inventive spirit continues to drive progress in the field of separation membranes. His latest patents reflect a commitment to creating efficient and effective solutions for complex challenges in filtration technology. As he continues to push the boundaries of innovation at Toray Industries, Inc., Nakatsuji remains a significant figure in the landscape of materials science and engineering.

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