Kazuyoshi Kuroishi

Title: Kazuyoshi Kuroishi: Innovator in Rigid Polyurethane Foam Technology

Introduction

Kazuyoshi Kuroishi is a notable inventor based in Tochigi, Japan. He has made significant contributions to the field of materials science, particularly in the development of rigid polyurethane foams. With a total of 4 patents to his name, Kuroishi's work has had a substantial impact on heat insulation technologies.

Latest Patents

Kuroishi's latest patents include innovative processes for producing rigid polyurethane foam. One of his notable inventions is a rigid polyurethane foam obtained by foaming a special polyol component and an isocyanate component in the presence of a blowing agent comprising water and specific chlorofluorocarbons. This foam possesses balanced excellent properties, has no surface voids, and shows only slight expansion after molding. It is particularly effective as a heat insulator, especially for refrigerators. Another significant patent involves a rigid polyurethane foam produced using only water as a blowing agent. This foam exhibits remarkably low density and low thermal conductivity, making it suitable for use as a heat insulator in refrigeration applications.

Career Highlights

Kazuyoshi Kuroishi is currently employed at Hitachi, Ltd., where he continues to innovate in the field of materials science. His work has been instrumental in advancing the technology of heat insulation, contributing to more efficient and environmentally friendly products.

Collaborations

Kuroishi has collaborated with several talented individuals in his field, including Reishi Naka and Isao Kobayashi. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Kazuyoshi Kuroishi's contributions to the field of rigid polyurethane foam technology highlight his role as an influential inventor. His innovative patents and ongoing work at Hitachi, Ltd. continue to shape the future of heat insulation materials.