Koji Ueda

Title: Koji Ueda: Innovator in Water-Absorbent Resin Technology

Introduction

Koji Ueda is a prominent inventor based in Himeji, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the development of water-absorbent resins. With a total of 4 patents to his name, Ueda's work has had a notable impact on various industrial applications.

Latest Patents

Ueda's latest patents include a method for producing water-absorbent resin through a reversed-phase suspension polymerization method. This innovative process involves dispersing a first aqueous solution containing a partially neutralized product of a water-soluble ethylenically unsaturated monomer in a petroleum-type hydrocarbon dispersion medium. The method also includes a second step of adding another aqueous solution to the slurry obtained in the first step, leading to the agglomeration of primary particles. Another significant patent is for the production of crosslinked poly(meth)acrylic acid nitroxide compounds. This invention focuses on creating a crosslinked poly(meth)acrylic acid nitroxide compound with a high radical concentration, achieved through a specific nitroxidation step.

Career Highlights

Koji Ueda is currently employed at Sumitomo Seika Chemicals Co., Ltd., where he continues to advance his research in polymer technology. His work has been instrumental in enhancing the efficiency and effectiveness of water-absorbent materials.

Collaborations

Ueda has collaborated with notable colleagues, including Nobutaka Fujimoto and Masato Fujikake. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Koji Ueda's contributions to the field of polymer chemistry, particularly in water-absorbent resin technology, highlight his role as a leading inventor. His innovative methods and collaborative efforts continue to shape advancements in this important area of research.