Keiji Hirose

Title: Keiji Hirose: Innovator in Thermal Transfer Technology

Introduction

Keiji Hirose is a prominent inventor based in Tokyo-to, Japan, known for his significant contributions to thermal transfer technology. With a total of 10 patents to his name, Hirose has made remarkable advancements in the field, particularly in the development of thermal transfer sheets.

Latest Patents

Hirose's latest patents focus on innovative thermal transfer sheets designed to enhance printing quality. One of his notable inventions is a thermal transfer sheet that comprises a substrate, a heat-resistant slip layer on one side, and an undercoat layer along with a dye layer on the other side. The undercoat layer is formed using colloidal inorganic pigment ultrafine particles and a copolymer resin of vinyl pyrrolidone and vinyl acetate as main components. This invention aims to provide a thermal transfer sheet with high transfer sensitivity, enabling high-density prints and sharp thermal transfer images. Additionally, it addresses the challenges of abnormal transfer during printing, even under high temperature and humidity conditions.

Career Highlights

Hirose has built a successful career at Dai Nippon Printing Co., Ltd., where he has been instrumental in advancing thermal transfer technologies. His work has not only contributed to the company's reputation but has also set new standards in the industry.

Collaborations

Throughout his career, Hirose has collaborated with talented individuals such as Daigo Morizumi and Masafumi Hayashi. These collaborations have fostered innovation and have led to the successful development of various thermal transfer products.

Conclusion

Keiji Hirose's contributions to thermal transfer technology have significantly impacted the printing industry. His innovative patents and collaborative efforts continue to drive advancements in this field, showcasing his dedication to improving printing quality and efficiency.