Location History:
- Ibaraki, JP (1998)
- Tsukuba, JP (1999 - 2004)
Company Filing History:
Years Active: 1998-2004
Title: Innovations by Inventor Hiroaki Ohgi in Polycarbonate Production
Introduction
Hiroaki Ohgi, a prominent inventor based in Tsukuba, Japan, has made significant contributions to the field of chemical engineering. With a total of five patents to his name, Ohgi is known for his innovative approaches to producing and separating various chemical compounds, particularly in relation to polycarbonate resins.
Latest Patents
Ohgi's latest patents encompass novel processes that advance the production capabilities of polycarbonate resins. One of his significant patents describes a process for producing polycarbonate resin, which involves the melt polycondensation of pentacyclopentadecanedimethanol with a diol and carbonic acid diester, facilitated by a catalyst consisting of zinc, tin, lead, zirconium, or hafnium compounds. Another notable patent focuses on the separation of dialkyl carbonate and alkyl carbamate. This process involves introducing an aromatic hydroxy compound to a liquid containing alkyl carbamate and dialkyl carbonate, followed by distillation to effectively separate these components.
Career Highlights
Ohgi currently works at Mitsubishi Gas Chemical Company, Inc., where he has been instrumental in advancing the company's research and development initiatives. His expertise in polymer science and chemical processes has helped align the company's products with market demands and environmental standards.
Collaborations
Throughout his career, Hiroaki Ohgi has collaborated closely with colleagues Masamichi Mizukami and Takuo Ohshida. Together, they have worked on various projects that leverage their collective expertise and drive innovation within their field.
Conclusion
Hiroaki Ohgi's contributions to the development of chemical processes, especially in the realm of polycarbonate production, underline his status as a notable inventor. His work demonstrates a commitment to innovation and sustainability in the chemical industry, making him a valuable asset to Mitsubishi Gas Chemical Company, Inc. and the broader scientific community. His patents reflect a pioneering spirit that continues to drive advancements in chemical engineering.