Katsuharu Ogishima

Title: Innovations of Katsuharu Ogishima

Introduction

Katsuharu Ogishima is a notable inventor based in Tokuyama, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the production of polycarbonates. His innovative approach has led to advancements in the manufacturing processes of these materials.

Latest Patents

Ogishima holds a patent for a "Process and apparatus for continuous production of polycarbonates." This invention allows for the continuous production of a heat-resistant and impact-resistant polycarbonate with a narrow distribution of molecular weight. The process involves reacting chloroformate ester, which is prepared in advance by reacting an alkaline solution of a dioxy compound in a turbulent flow of two solutions while cooling. Subsequently, the mixture is reacted concurrently in a laminar flow after the viscosity of the mixture has become significant.

Career Highlights

Katsuharu Ogishima is associated with Idemitsu Kosan Co., Ltd., where he has been able to apply his expertise in polymer production. His work has contributed to the development of high-performance materials that are essential in various applications.

Collaborations

Ogishima has collaborated with notable colleagues, including Norio Komori and Hideo Konuma. Their combined efforts have furthered research and development in the field of polycarbonate production.

Conclusion

Katsuharu Ogishima's innovative contributions to the production of polycarbonates highlight his importance in the field of polymer chemistry. His patent and collaborative efforts continue to influence advancements in material science.