This inventor holds 4 USPTO granted patents. Top assignees: Mitsubishi Chemical Corporation, Mitsubishi Kasei Corporation. Active years: 1995-2002.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Yokohama, JP (1995 - 2000)
- Kanagawa, JP (2002)
Company Filing History:
2 out of 2,423 
2 out of 499 Years Active: 1995-2002
Title: Yuuji Kawaragi: Innovator in Chemical Processes
Introduction
Yuuji Kawaragi is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of chemical processes, holding a total of 4 patents. His work focuses on improving the efficiency and effectiveness of chemical reactions, particularly in the production of amide compounds and hydroxyalkyl monoacrylates.
Latest Patents
Kawaragi's latest patents include a process for producing amide compounds. This invention aims to provide a method for producing amide compounds with high efficiency by subjecting oxime compounds to Beckmann rearrangement under mild reaction conditions. Specifically, it relates to producing compounds such as ε-caprolactam from cyclohexanone oxime. The process is characterized by the presence of either a non-fluorine-containing sulfonic anhydride and an N,N-disubstituted amide compound or a combination of sulfonic acids, an N,N-disubstituted amide compound, and a carboxylic anhydride.
Another significant patent involves a process for producing hydroxyalkyl monoacrylate using stannoxane. This process includes reacting acrylic acid or its derivatives with alkane diols for esterification and/or transesterification in the presence of a stannoxane catalyst. The method emphasizes the effective recovery and reuse of the catalyst, enhancing the overall efficiency of the production process.
Career Highlights
Throughout his career, Yuuji Kawaragi has worked with prominent companies such as Mitsubishi Kasei Corporation and Mitsubishi Chemical Corporation. His experience in these organizations has allowed him to develop innovative chemical processes that have practical industrial applications.
Collaborations
Kawaragi has collaborated with notable colleagues, including Keiichi Sato and Yasuko Higashino. These partnerships have contributed to the advancement of his research and the successful development of his patented processes.
Conclusion
Yuuji Kawaragi is a distinguished inventor whose work in chemical processes has led to significant advancements in the production of amide compounds and hydroxyalkyl monoacrylates. His contributions continue to impact the field positively, showcasing the importance of innovation in chemical engineering.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile