Location History:
- Kanagawa, JP (1992)
- Kawasaki, JP (1984 - 1994)
- Saitama-ken, JP (1996)
- Saitama, JP (1999 - 2003)
Company Filing History:
17 out of 1,379 
4 out of 1,786 Years Active: 1984-2003
Title: **Toshio Katoh: Innovator in Polysuccinimide Production**
Introduction
Toshio Katoh, located in Kawasaki, Japan, is a prominent inventor with a significant contribution to the field of material science, particularly in the production of polysuccinimide and its applications. With a portfolio containing 21 patents, Katoh's innovations have paved the way for advancements in biodegradable materials and high-performance polymers.
Latest Patents
Among his latest patents, Katoh has developed a comprehensive production process for high molecular weight polysuccinimide. This process entails several key steps: firstly, it involves mixing and heating aspartic acid with an acidic catalyst to create a low molecular weight polymer mixture. Subsequently, the acidic catalyst is separated from this mixture, transitioning the polymer-containing phase from liquid to solid to yield a solid, low molecular weight polymer. The final step includes conducting solid-state polymerization on this solid polymer mixture. This method is remarkable for being simple in apparatus requirements and addresses common issues such as high viscosity, foam formation, and complex reaction mixtures.
In another significant patent, Katoh disclosed a process for producing cross-linked polysuccinimide resin that boasts both biodegradability and high water absorbency. This process enhances productivity and includes innovative steps such as reacting a dispersed polysuccinimide with a cross-linking agent and performing hydrolysis reactions on cross-linked imide rings. The developments also explore further enhancement through washing with water or organic solvents and utilizing basic amino acids as cross-linking agents.
Career Highlights
Toshio Katoh has had a remarkable career, working with renowned companies such as Mitsui Toatsu Chemicals, Incorporated and Mitsui Chemicals, Inc. His contributions in these organizations have greatly influenced the realm of polymer chemistry and materials science.
Collaborations
Throughout his career, Katoh has collaborated with esteemed professionals like Akihiro Yamaguchi and Chojiro Higuchi. These collaborations have reinforced his innovative efforts and have led to significant advancements in the research and application of polysuccinimide-based materials.
Conclusion
Toshio Katoh's work exemplifies the spirit of innovation within the field of materials science. His developments in polysuccinimide production not only demonstrate his expertise as an inventor but also mark a notable impact on the industry, paving the way for sustainable and efficient applications in various sectors.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.