Company Filing History:
2 out of 614 
2 out of 1,100 
2 out of 2,278 
Years Active: 1985-1989
Title: Nobuyoshi Hirokoh: Innovator in Coal Conversion Technologies
Introduction
Nobuyoshi Hirokoh is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of coal conversion technologies, holding a total of 2 patents. His innovative approaches have the potential to transform how coal is processed and utilized.
Latest Patents
Hirokoh's latest patents include a "Process for converting coal to an oil fraction." This process involves subjecting coal to a first hydrogenation reaction, followed by deashing the reaction product and subjecting the deashed liquefied oil to a second hydrogenation reaction. The method aims to efficiently convert coal into valuable oil fractions while minimizing waste. Another patent is titled "Process for converting coal," which describes a method of liquefying coal using a slurry composed of coal, a hydrocarbon solvent, and a hydrogenation catalyst. This process emphasizes the recycling of the hydrogenation catalyst, enhancing the efficiency of coal conversion.
Career Highlights
Throughout his career, Nobuyoshi Hirokoh has worked with prominent companies such as Mitsubishi Chemical Industries Limited and Kobe Steel, Ltd. His experience in these organizations has allowed him to develop and refine his innovative technologies in coal conversion.
Collaborations
Hirokoh has collaborated with notable coworkers, including Yoichi Kageyama and Yukio Nakako. Their combined expertise has contributed to the advancement of coal conversion processes.
Conclusion
Nobuyoshi Hirokoh's work in coal conversion technologies showcases his innovative spirit and dedication to improving energy resources. His patents reflect a commitment to developing efficient methods for utilizing coal, which could have significant implications for the energy industry.