Company Filing History:
Years Active: 1983-1999
Title: Atsushi Sonobe: Innovator in Polyester Resin Technology
Introduction
Atsushi Sonobe is a notable inventor based in Wakayama, Japan. He has made significant contributions to the field of polyester resin technology, holding a total of 2 patents. His work focuses on developing compositions that enhance the performance of electrostatic latent images.
Latest Patents
Sonobe's latest patents include a "Developer composition for electrostatic latent images" and a "Process for producing new polyester resin and product thereof." The developer composition consists of a toner and a carrier, where the toner includes a binder resin made from a polyester resin with a specific acid value, a wax, and a colorant. The wax is uniquely dispersed in the toner with a length to diameter ratio ranging from 2 to 15. His second patent details a new polyester resin produced through condensation polymerization, which boasts improved toughness, abrasion resistance, and flexibility.
Career Highlights
Throughout his career, Atsushi Sonobe has worked with prominent companies such as Kao Soap Company, Ltd. and Kao Corporation. His experience in these organizations has allowed him to refine his expertise in polymer technology and contribute to innovative solutions in the industry.
Collaborations
Some of his notable coworkers include Shinichiro Yasuda and Eiji Morimoto. Their collaborative efforts have likely played a role in advancing the projects they have worked on together.
Conclusion
Atsushi Sonobe's contributions to polyester resin technology and his innovative patents highlight his role as a significant inventor in the field. His work continues to influence advancements in electrostatic latent image development and polymer production.