This inventor holds 2 USPTO granted patents. Top assignees: Nikka Chemical Industry Co., Ltd., Chiyoda Chem. Engineering & Construction Co., Chiyoda Chemical Enginrng & Constrct. Co. Ltd.. Active years: 1985-1986.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 4 
1 out of 2 
1 out of 1 Years Active: 1985-1986
Title: **Katsuhiko Shimakawa: Innovator in Dispersant Technology**
Introduction
Katsuhiko Shimakawa, an esteemed inventor based in Sabae, Japan, has made significant contributions to the field of chemical engineering. With a commendable portfolio featuring two patents, Shimakawa's work primarily focuses on innovative dispersant technologies that enhance the efficiency of pitch compositions in aqueous systems.
Latest Patents
Among his latest inventions is a novel condensation product that serves as a dispersant for pitch in water. This product is a result of the reaction between an aldehyde and two types of sulfonic acid group-containing aromatic compounds. Its application as a dispersant is particularly beneficial for forming pitch-in-water slurries. Another important patent by Shimakawa is a pitch-containing composition that forms a dispersion or slurry. This composition comprises an aqueous medium, finely divided pitch, and a specific dispersant sufficient to maintain the pitch in a dispersed state. The dispersant can be selected from various compounds, including polymeric materials and salts of sulfuric esters, showcasing the versatility and innovative nature of his work.
Career Highlights
Katsuhiko Shimakawa has worked with several reputed companies throughout his career. Notably, he has been associated with Nikka Chemical Industry Co., Ltd. and Chiyoda Chemical Engineering & Construction Co., Ltd. These experiences have provided him with a robust platform to develop and refine his inventions in the field of chemical dispersants.
Collaborations
During his professional journey, Shimakawa has collaborated with notable coworkers such as Osamu Ohzeki and Zenichi Mashino. These partnerships have played a crucial role in advancing his research and enhancing the application of his inventions.
Conclusion
Katsuhiko Shimakawa's innovative spirit and dedication to the field of chemical engineering have led to significant advancements in dispersant technologies. With his patented solutions, he continues to contribute to the efficiency of pitch compositions, affirming his position as a noteworthy inventor in Japan's chemical industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile