This inventor holds 5 USPTO granted patents and 1 published patent application and 3 EPO patents. Top assignees: Mitsui Chemicals, Inc., Mitsui Petrochemical Industries, Ltd.. Active years: 1990-2015.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Chiba, JP (1990 - 1999)
- Ichihara, JP (1993 - 2015)
Company Filing History:
3 out of 1,817 
2 out of 1,008 Years Active: 1990-2015
Title: Innovations of Tatsuo Shirahata
Introduction
Tatsuo Shirahata is a notable inventor based in Ichihara, Japan. He has made significant contributions to the field of chemical engineering, particularly in the purification of phenol and the production of 2-propanol. With a total of 5 patents, his work has had a considerable impact on industrial processes.
Latest Patents
One of his latest patents is a phenol purification process. This invention provides an easy method for purifying phenol by separating carbonyl compounds through selective hydrogenation of the compounds to the corresponding alcohols, followed by distillation. The process involves bringing phenol into contact with a copper-based catalyst in the presence of hydrogen to convert carbonyl compounds contained in the phenol to the corresponding alcohol compounds. The alcohol compounds and phenol are then separated by distillation.
Another significant patent is for a process for producing 2-propanol. This invention offers a method for producing 2-propanol with higher purity than previously possible while minimizing the by-production of impurities. The process includes reacting a raw material mixture containing water and acetone with hydrogen in the presence of a hydrogenation catalyst. The raw material mixture contains water at 1.2 to 4.0 wt % based on 100 wt % of the total of the water and the acetone.
Career Highlights
Throughout his career, Tatsuo Shirahata has worked with prominent companies such as Mitsui Chemicals, Inc. and Mitsui Petrochemical Industries, Ltd. His experience in these organizations has allowed him to develop and refine his innovative processes.
Collaborations
Some of his notable coworkers include Tetsuo Imamura and Naoto Yasaka. Their collaboration has contributed to the advancement of chemical engineering and the development of new technologies.
Conclusion
Tatsuo Shirahata's contributions to the field of chemical engineering through his innovative patents have significantly advanced industrial processes. His work continues to influence the production and purification of essential chemical compounds.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile