Norimasa Hosonuma

Title: Norimasa Hosonuma: Innovator in Electrophotography Technology

Introduction

Norimasa Hosonuma is a prominent inventor based in Fujisawa, Japan. He has made significant contributions to the field of electrophotography, holding a total of seven patents. His innovative work has advanced the technology used in image-forming apparatuses.

Latest Patents

One of Hosonuma's latest patents involves the development of a roll and a developing device for use in image-forming apparatuses utilizing electrophotography. This developing roll features a cylindrical core made of metal, surrounded by an annular elastic layer made of rubber. Additionally, it includes an annular surface layer that consists of a central portion and end portions. The design ensures that the coefficient of kinetic friction of the outer peripheral surface of each end portion is less than or equal to 0.1, while the ten-point average roughness of the outer peripheral surface is less than or equal to 1.8 μm. Another notable patent is a seal structure that incorporates a shaft member, a bush with a shaft hole, a pressure-receiving member, and an elastic member. This innovative design enhances the functionality and reliability of the apparatus.

Career Highlights

Throughout his career, Norimasa Hosonuma has worked with notable companies such as Nok Corporation and Eagle Industry Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to significant advancements in technology.

Collaborations

Hosonuma has collaborated with talented individuals in his field, including Fangman Xu and Nozomu Suzuki. These partnerships have fostered innovation and creativity in his projects.

Conclusion

Norimasa Hosonuma's contributions to electrophotography technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence advancements in image-forming apparatuses.