Location History:
- Noda, JP (1993 - 1995)
- Chiba, JP (1986 - 1998)
- Saitama, JP (1996 - 2000)
Company Filing History:
10 out of 163 
7 out of 42 
4 out of 61 
Years Active: 1986-2000
Title: Innovations by Kazushi Usui: Advancements in Hydrodesulfurization and Emission Control
Introduction
Kazushi Usui, an innovative inventor based in Chiba, Japan, has made significant contributions to the field of chemical engineering. With a portfolio of 14 patents, Usui has focused his research on creating efficient catalysts for hydrodesulfurization and effective processes for the removal of nitrogen oxides from exhaust gases.
Latest Patents
Among his latest inventions, Usui has developed a notable patent titled "Process for producing hydrodesulfurization catalyst." This patent reveals a method that includes impregnating an inorganic oxide carrier containing a crystalline aluminosilicate with a solution of Group VI and Group VIII metal oxides, along with phosphorus. This catalyst is crucial for deep hydrodesulfurization processes, helping to produce gas oil with an extremely low sulfur content.
Another significant patent addresses the "Removal of nitrogen oxide from exhaust gas." In this process, exhaust containing nitrogen oxides is treated with an alumina catalyst characterized by a very specific alkali metal and alkaline earth metal content. The catalyst's pore structure is optimized for effective removal of nitrogen oxides, contributing to cleaner emissions from combustion engines.
Career Highlights
Kazushi Usui has built an impressive career, primarily working with Cosmo Oil Co., Ltd. and the Cosmo Research Institute. Throughout his tenure at these institutions, he has focused on the development of advanced catalytic processes that address environmental concerns while promoting efficient fuel utilization.
Collaborations
In his professional journey, Usui has collaborated with other notable scientists, including Katsuyoshi Ohki and Takashi Fujikawa. Their collective efforts have driven forward research and innovation in the field of catalysis and emission reduction strategies.
Conclusion
Kazushi Usui's innovative work, exemplified by his extensive patent portfolio, continues to influence the fields of chemical engineering and environmental science. His dedication to improving hydrodesulfurization processes and minimizing nitrogen oxide emissions showcases the essential role inventors play in addressing global energy and environmental challenges.