This inventor holds 1 USPTO granted patent. Top assignees: Goi Chemical Company, Ltd., Hitachi Chemical Company, Ltd., Maruzen Oil Co. Ltd.. Active years: 1979.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 2 
1 out of 1,641 
1 out of 32 Years Active: 1979
Title: Masakazu Ueoka: Chemical Process Inventor
Introduction
Masakazu Ueoka is an inventor associated with Ichikawa, Japan. His work includes a patented process for producing highly pure p-tertiary-butyl phenol. His patent record includes 1 patent.
Latest Patents
Ueoka’s patent, “Process for Producing Highly Pure p-Tertiary-Butyl Phenol,” describes preparing the compound from an olefin composition containing mainly isobutylene oligomers and a smaller amount of a codimer of n-butene and isobutylene. The process reacts this composition with phenol in the presence of water and a synthetic silica-alumina catalyst at 140–230°C.
Career Highlights
Ueoka’s career is associated with Goi Chemical Company, Ltd., and Maruzen Oil Co., Ltd. His patented process addresses the production of highly pure p-tertiary-butyl phenol.
Collaborations
His listed coworkers include Takayuki Saito and Yasuyuki Iguchi.
Conclusion
Masakazu Ueoka’s patent documents a chemical production process developed in connection with his work at Goi Chemical Company and Maruzen Oil, highlighting his contribution to producing highly pure p-tertiary-butyl phenol.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile