Location History:
- Funabashi, JP (1982 - 1985)
- Chiba, JP (1982 - 2020)
Company Filing History:
9 out of 171 
2 out of 1,379 
Years Active: 1982-2020
Title: Haruyuki Morikawa: Innovator in Urea Manufacturing
Introduction
Haruyuki Morikawa is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of chemical engineering, particularly in the manufacturing of urea. With a total of 9 patents to his name, Morikawa's work has advanced the efficiency of urea production processes.
Latest Patents
Morikawa's latest patents include innovative methods and apparatuses for urea manufacturing. One of his patents focuses on a urea manufacturing method that increases the conversion ratio into urea while reducing steam consumption. This method involves raising the reactor temperature by introducing the entire amount of raw material ammonia and a portion of the decomposed gas from the stripper into the reactor. The raw material ammonia is preferably heated using steam condensate generated in the purification step, with an optimal heating temperature between 70 and 140°C. Another patent presents a method that allows for more efficient urea production by placing the urea synthesis solution under reduced pressure before removing unreacted substances. This process creates a gas-liquid mixture that is then heated with decomposed gas from the stripper using a shell-and-tube heat exchanger.
Career Highlights
Throughout his career, Morikawa has worked with prominent companies such as Toyo Engineering Corporation and Mitsui Toatsu Chemicals, Incorporated. His experience in these organizations has contributed to his expertise in chemical processes and innovations in urea manufacturing.
Collaborations
Morikawa has collaborated with notable colleagues, including Hiroshi Ono and Hidetsugu Fujii. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas in the field of chemical engineering.
Conclusion
Haruyuki Morikawa's contributions to urea manufacturing demonstrate his commitment to innovation and efficiency in chemical processes. His patents reflect a deep understanding of the complexities involved in urea production, making him a significant figure in this industry.