Kazuyoshi Hattori

Title: Kazuyoshi Hattori: Innovator in Electrophotography

Introduction

Kazuyoshi Hattori is a notable inventor hailing from Shizuoka, Japan. With a keen focus on the field of electrophotography, he has made significant contributions through his innovations. Holding three patents, Hattori's work has had a considerable impact on the toner and developer technology used in printing.

Latest Patents

Hattori's most recent patents include innovative formulations of toners for electrophotography. One of his patents details a toner comprising toner particles that include a binder resin and a colorant, enhanced with external additives like strontium titanate and hydrophobic silica. Specifically, the strontium titanate possesses a BET specific surface area of 20-50 m²/g and is shaped like a rectangular parallelepiped. Meanwhile, the hydrophobic silica is categorized into two types: one with a BET specific surface area between 150-300 m²/g treated with an aminosilane and hexamethyldisilazane, and the other with a surface area of 90-150 m²/g treated with hexamethyldisilazane.

Another significant patent is focused on a toner and two-component developer designed for electrostatic image development. This invention allows for the production of high-quality images with reduced dependency on environmental conditions during extended printing runs. The toner features particles coated with titanium oxide treated with isobutyl trimethoxy silane and trimethyl siloxysilicate, combined with carrier particles that include a resin coating agent containing carbon black.

Career Highlights

Kazuyoshi Hattori has had a fruitful career, working with prominent companies such as Tomoegawa Paper Co., Inc. and Tomoegawa Co., Ltd. His experience in these organizations has undoubtedly contributed to his expertise in the field and his innovative endeavors.

Collaborations

Throughout his career, Hattori has collaborated with notable colleagues including Tohru Moriya and Hitoshi Onoda. These partnerships have likely facilitated the advancement of technology in his field and the successful development of his patented inventions.

Conclusion

Kazuyoshi Hattori stands out as a significant figure in the realm of electrophotography through his innovative patents and collaborations. His contributions are shaping the future of toner and developer technologies, showing the importance of continuous innovation in the printing industry. As a dedicated inventor, Hattori's work reflects the essence of creativity and technical prowess in modern inventions.