Kunitoshi Sugiyama

Title: Kunitoshi Sugiyama: Innovator in Electrophotographic Technologies

Introduction

Kunitoshi Sugiyama is a notable inventor based in Numazu, Japan. He has made significant contributions to the field of electrophotographic technologies, holding a total of 7 patents. His work focuses on innovative methods that enhance the efficiency and sustainability of imaging processes.

Latest Patents

One of Sugiyama's latest patents is a system for separating electrophotographic carrier compositions and recycling the compositions. This method allows for the secure separation of carrier coating resinous materials from core magnetic materials without compromising their properties. The process utilizes environmentally friendly steps in super- or sub-critical water compositions at temperatures of 300°C or more and pressures of 20 MPa. The core magnetic material can then be recycled for forming carriers, making this method beneficial for processing waste that includes magnetic materials with silicone resin coatings.

Another significant patent is for a reversible thermosensitive recording medium, which includes a reversible thermosensitive recording layer. This layer consists of a matrix resin and an organic low-molecular-weight material that changes transparency based on temperature. The medium has a transparentizing upper-limit temperature of 125°C or more and a temperature difference of 20°C or less between the transparentizing upper-limit temperature and the opaqueness initiation lower-limit temperature. This innovation also includes methods for recording and erasing images, as well as applications in cards, labels, and writable or rewritable disk cartridges.

Career Highlights

Throughout his career, Kunitoshi Sugiyama has worked with prominent companies, including Ricoh Company, Ltd. His experience in the industry has allowed him to develop and refine his innovative ideas, contributing to advancements in electrophotographic technologies.

Collaborations

Sugiyama has collaborated with notable individuals in his field, including Hideyuki Kobori and Yoshihiko Hotta. These collaborations have further enriched his work and led to the development of groundbreaking technologies.

Conclusion

Kunitoshi Sugiyama's contributions to electrophotographic technologies demonstrate his commitment to innovation and sustainability. His patents reflect a deep understanding of the complexities involved in imaging processes, making him a significant figure in the field.