Jyunji Katsuyama

Title: Jyunji Katsuyama: Innovator in Chemical Processes

Introduction

Jyunji Katsuyama is a notable inventor based in Nakaniikawa-gun, Japan. He has made significant contributions to the field of chemistry, particularly in the production of specialized chemical compounds. His innovative approach has led to the development of a unique process that enhances the efficiency of chemical production.

Latest Patents

Katsuyama holds a patent for the "Process for production of 4-fluoroisoquinoline-5-sulfonyl halide or salt thereof." This patent outlines an effective and simple method for producing 4-fluoroisoquinoline-5-sulfonyl halide or its salt. The process includes reacting 4-fluoroisoquinoline or a salt thereof with sulfuric anhydride, with or without sulfuric acid, to form 4-fluoroisoquinoline-5-sulfonic acid or its salt. Subsequently, the formed sulfonic acid compound is reacted with a halogenating reagent. This innovative method also provides a straightforward approach for separating and purifying the product from any by-produced positional isomers.

Career Highlights

Katsuyama is associated with Kowa Company Limited, where he applies his expertise in chemical processes. His work has been instrumental in advancing the company's capabilities in producing high-quality chemical products. His dedication to innovation has positioned him as a key figure in his field.

Collaborations

Katsuyama has collaborated with notable colleagues, including Hitoshi Sakai and Masayuki Masumoto. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and enhances the overall innovation process.

Conclusion

Jyunji Katsuyama's contributions to the field of chemistry through his innovative patent and collaborative efforts highlight his importance as an inventor. His work continues to influence the production of specialized chemical compounds, showcasing the impact of innovation in the industry.