Koji Ogawa

Title: The Innovations of Koji Ogawa

Introduction

Koji Ogawa is a notable inventor based in Fukui, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the development of various types of polyester resins. With a total of three patents to his name, Ogawa's work has implications in industries such as printing and materials science.

Latest Patents

Ogawa's latest patents include a crystalline polyester resin and a binder resin dispersion for toner using the same. The crystalline polyester resin is obtained through condensation polymerization of a mixture that includes a polycarboxylic acid component and a polyol component. The specific ratio of carboxyl groups to hydroxyl groups is crucial, falling within the range of 100:108 to 100:120, with an acid value of 5 to 20 mgKOH/g. The polycarboxylic acid component features a C8-12 aliphatic dicarboxylic acid, while the polyol component includes a C8-12 aliphatic diol, ensuring that at least 90 mol % of the total carboxyl and hydroxyl groups come from these components. Additionally, he has developed a non-crystalline polyester resin, which is an amorphous polyester resin created through a specific reaction process involving multiple polycarboxylic acid components.

Career Highlights

Koji Ogawa is currently employed at Nicca Chemical Co., Ltd., where he continues to innovate and develop new materials. His work has been instrumental in advancing the capabilities of polyester resins, making them more efficient and versatile for various applications.

Collaborations

Ogawa collaborates with esteemed colleagues such as Yasumichi Moriyama and Masakazu Nishino. Their combined expertise contributes to the innovative projects at Nicca Chemical Co., Ltd.

Conclusion

Koji Ogawa's contributions to the field of polymer chemistry through his patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence advancements in materials science and technology.