Location History:
- Ybe, JP (2006)
- Yamaguchi, JP (1996 - 2008)
- Ube, JP (1991 - 2016)
Company Filing History:
9 out of 1,432 
3 out of 107 
2 out of 613 
Years Active: 1991-2016
Title: Kiyotaka Yoshii: Innovator in Hydrocracking and Dibenzothiazepine Compounds
Introduction
Kiyotaka Yoshii is a prominent inventor based in Ube, Japan. He has made significant contributions to the field of chemistry, particularly in the development of catalysts and chemical compounds. With a total of nine patents to his name, Yoshii's work has had a notable impact on various industrial applications.
Latest Patents
Yoshii's latest patents include a hydrocracking catalyst and a method for producing hydroxy compounds using this catalyst. The hydrocracking catalyst is created by mixing a metal compound that includes metals from Groups 3 to 11 of the Periodic Table, along with a compound that features ruthenium oxide and a metal oxide from Groups 5, 6, or 7. This innovative catalyst is designed to enhance the efficiency of hydrocracking processes. Another significant patent involves a process for preparing dibenzothiazepine compounds, which are synthesized through a dehydration-condensation reaction in the presence of an acidic catalyst.
Career Highlights
Throughout his career, Kiyotaka Yoshii has worked with notable companies such as Ube Industries, Inc. and AstraZeneca UK Limited. His experience in these organizations has allowed him to refine his expertise in chemical engineering and patent development.
Collaborations
Yoshii has collaborated with esteemed colleagues, including Katsumasa Harada and Shigeyoshi Nishino. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Kiyotaka Yoshii's innovative work in hydrocracking catalysts and dibenzothiazepine compounds showcases his significant contributions to the field of chemistry. His patents reflect a commitment to advancing industrial processes and improving chemical synthesis methods.