This inventor holds 4 USPTO granted patents. Top assignee: Mitsubishi Petrochemical Company Limited. Active years: 1985-1991.
Location History:
- Ami, JP (1985)
- Ibaraki, JP (1986)
- Yokkaichi, JP (1991)
Company Filing History:
Years Active: 1985-1991
Title: Ryozo Hamana: Innovator in Chemical Processes
Introduction
Ryozo Hamana is a notable inventor based in Ibaraki, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of aromatic compounds and piperidine. With a total of 4 patents to his name, Hamana's work has had a considerable impact on the industry.
Latest Patents
Hamana's latest patents include a method for producing aromatic alcohol and a process for the production of piperidine. The method for producing aromatic alcohol involves reducing aromatic hydroperoxide with hydrogen in a liquid phase, utilizing a platinum catalyst or a catalyst containing platinum along with elements such as lead, tin, copper, arsenic, antimony, indium, selenium, and bismuth in a fixed bed reactor. The process for producing piperidine entails the catalytic hydrogenation of furfurylamine and/or tetrahydrofurfurylamine in the presence of a hydrogenation catalyst, where hydrogen gas is flowed into a reaction zone. The starting material is introduced into a liquid phase maintained at a constant temperature, and the reaction product is withdrawn in gaseous form along with excess hydrogen gas.
Career Highlights
Ryozo Hamana is currently employed at Mitsubishi Petrochemical Company Limited, where he continues to innovate and develop new chemical processes. His expertise in the field has led to advancements that benefit both the company and the broader chemical industry.
Collaborations
Throughout his career, Hamana has collaborated with esteemed colleagues such as Tadamichi Aoki and Tadashi Ayusawa. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Ryozo Hamana's contributions to chemical engineering through his patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence the production of important chemical compounds, showcasing the importance of innovation in this field.