Yasumitsu Fujino

Title: Innovations of Yasumitsu Fujino: A Pioneer in Toner Technology

Introduction

Yasumitsu Fujino is a distinguished inventor based in Akishima, Japan, known for his significant contributions to toner technology. With a total of four patents to his name, Fujino has developed innovative solutions that enhance the efficiency and quality of electrostatic charge image developing toners.

Latest Patents

Among his latest patents are two notable inventions that showcase his expertise:

1. **Electrostatic Charge Image Developing Toner and Production Process for the Same**: This innovative toner comprises core particles formed by flocculating and fusion-bonding polyester resin particles, enhanced with wax and colorant particles. The creation of a coating layer containing resin over the core particles optimizes its performance.

2. **Electrostatic Latent Image Developing Toner**: This patent describes a toner that consists of toner particles featuring a shell layer surrounding a core particle. The composition includes a first binder resin with a softening point below 100°C and a second binder resin with a softening point above 100°C, along with a colorant. This formulation allows for application in low-temperature fixing processes while achieving desirable properties such as heat-resistance and environmental stability.

Career Highlights

Yasumitsu Fujino currently works at Konica Minolta Business Technologies, Inc., where he continues to push the boundaries of toner innovation. His career reflects a deep commitment to enhancing imaging technology through continuous research and development, as well as practical applications of his inventions.

Collaborations

Fujino's work has often involved collaboration with notable colleagues, including Hideaki Ueda and Seishi Ojima. These partnerships have enriched the development process and contributed to the successful realization of advanced toner technologies.

Conclusion

Yasumitsu Fujino exemplifies the spirit of innovation within the field of toner technology. His patents not only demonstrate technical ingenuity but also reflect his dedication to improving imaging processes. As he continues his work at Konica Minolta, the impacts of his innovations are expected to resonate within the industry for years to come.