Masahiro Matsuoka

Title: Masahiro Matsuoka: Innovator in Electrostatic Image Development

Introduction

Masahiro Matsuoka is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of electrostatic image development, holding a total of six patents. His innovative work focuses on improving toner formulations for various applications.

Latest Patents

Matsuoka's latest patents include advancements in toner for electrostatic image development. One of his notable inventions provides a toner with low-temperature fixability and long-term stable charge properties, along with heat-resistant storage stability. This toner consists of particles containing a binder resin, which features a domain-matrix structure. The crystalline polyester resin is dispersed as a domain phase within a matrix phase formed of an amorphous vinyl polymer. The amorphous vinyl polymer has a carboxy group concentration ranging from 0.2 mmol/g to 1.0 mmol/g, while the crystalline polyester resin has an ester group concentration between 0.1 mmol/g and 7.1 mmol/g.

Another patent focuses on a toner that maintains glossiness stability across various types of paper. This toner also utilizes a domain-matrix structure, where a domain phase includes a crystalline polyester resin with a melting point between 40 to 90 degrees Celsius, alongside a domain phase containing a vinyl resin with a weight average molecular weight of 250,000 to 400,000. These innovations reflect Matsuoka's commitment to enhancing the performance of electrostatic toners.

Career Highlights

Throughout his career, Matsuoka has worked with notable companies such as Konica Minolta, Inc. and Senju Pharmaceutical Co., Ltd. His experience in these organizations has allowed him to develop and refine his expertise in toner technology and electrostatic imaging.

Collaborations

Matsuoka has collaborated with talented individuals in his field, including Takaki Kawamura and Kaori Matsushima. These partnerships have contributed to the advancement of his research and the successful development of his patents.

Conclusion

Masahiro Matsuoka is a distinguished inventor whose work in electrostatic image development has led to significant innovations in toner technology. His contributions continue to impact the industry positively, showcasing his dedication to advancing imaging solutions.