Location History:
- Kusatsu, JP (1980 - 1981)
- Moriyama, JP (1983)
Company Filing History:
Years Active: 1980-1983
Title: Tetsuji Nishikawa: Innovator in Herbicidal Active Ingredients
Introduction
Tetsuji Nishikawa is a notable inventor based in Kusatsu, Japan. He has made significant contributions to the field of herbicidal active ingredients, holding a total of 4 patents. His work focuses on innovative processes that enhance the production of effective herbicides.
Latest Patents
Nishikawa's latest patents include a process for producing 4-benzoylpyrazoles, specifically 4-benzoyl-5-hydroxypyrazoles. These compounds are recognized for their utility as herbicidal active ingredients. The production process involves a condensation of a pyrazolone, tetrachloromethane, and a benzene compound in the presence of an aluminium halide, followed by a hydrolysis reaction that offers industrial advantages. Another patent details a similar process, utilizing a pyrazolone and benzotrichloride, also culminating in a hydrolysis reaction with notable industrial benefits.
Career Highlights
Nishikawa is associated with Ishihara Sangyo Kaisha, Ltd., where he continues to innovate in the field of herbicides. His work has not only advanced the understanding of herbicidal compounds but has also contributed to the efficiency of their production.
Collaborations
Some of his notable coworkers include Takahiro Haga and Ryuzo Nishiyama. Their collaborative efforts have furthered the research and development of herbicidal active ingredients.
Conclusion
Tetsuji Nishikawa's contributions to the field of herbicides through his innovative processes and patents highlight his role as a significant inventor. His work continues to impact agricultural practices positively.