This inventor holds 4 USPTO granted patents. Top assignees: Idemitsu Petrochemical Co., Ltd., Idemitsu Kosan Company, Limited, Idemitsu, Kosan Kabushiki-Kaisha. Active years: 1976-1979.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Tokuyama, JA (1976 - 1978)
- Tokuyamashi, JA (1978)
- Tokuyama, JP (1979)
Company Filing History:


Years Active: 1976-1979
Title: Hideo Konuma: Innovator in Polycarbonate Technology
Introduction
Hideo Konuma is a notable inventor based in Tokuyama, Japan. He has made significant contributions to the field of polycarbonate technology, holding a total of 4 patents. His work focuses on enhancing the properties of polycarbonate materials, particularly in terms of weather resistance.
Latest Patents
One of Konuma's latest patents is a process for the preparation of polycarbonate with weatherproof properties. This innovative process involves adding an ultraviolet absorbing compound with a hydroxy group to an oligomeric polycarbonate, which is produced through the reaction of a dioxy compound with phosgene. The method aims to create a polycarbonate composition that exhibits excellent weatherproof characteristics. Another significant patent is a method for producing a polycarbonate oligomer that ensures uniform qualities by reacting an aqueous alkaline solution of 2,2-(4,4'-dihydroxydiphenyl) propane with phosgene in the presence of methylene chloride and an inert gas.
Career Highlights
Throughout his career, Hideo Konuma has worked with prominent companies such as Idemitsu Petrochemical Co., Ltd. and Idemitsu Kosan Kabushiki-Kaisha. His experience in these organizations has allowed him to develop and refine his innovative approaches to polycarbonate production.
Collaborations
Konuma has collaborated with notable coworkers, including Ichiro Tokumitsu and Shigeaki Mochizuki. These partnerships have contributed to the advancement of his research and the successful development of his patented processes.
Conclusion
Hideo Konuma's contributions to polycarbonate technology demonstrate his commitment to innovation and excellence in material science. His patents reflect a deep understanding of chemical processes and a drive to improve product performance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile