Location History:
- Ibaraki, JP (1998)
- Aichi-ken, JP (1998)
- Yokkaichi, JP (2008 - 2010)
Company Filing History:
3 out of 2,250 
1 out of 12 
1 out of 510 
Years Active: 1998-2010
Title: Yuji Takeda: Innovator in Phenylene Ether Production
Introduction
Yuji Takeda is a prominent inventor based in Yokkaichi, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the production of phenylene ether oligomers. With a total of 4 patents to his name, Takeda's work has advanced the understanding and application of polyphenylene ether materials.
Latest Patents
Takeda's latest patents include innovative processes that enhance the production and quality of phenylene ether oligomers. One notable patent is the "Process for the production of phenylene ether oligomer," which involves the oxidative polymerization of specific bivalent and monovalent phenol compounds in an aromatic hydrocarbon solvent. This process allows for the replacement of the aromatic hydrocarbon solvent with a water-soluble organic solvent, leading to the precipitation of phenylene ether oligomers as particles. Another significant patent is the "Method for precipitation of polyphenylene ether," which focuses on reducing fine particles and achieving homogeneous polyphenylene ether particles through a carefully designed mixed solution.
Career Highlights
Throughout his career, Yuji Takeda has worked with notable companies such as Mitsubishi Gas Chemical Company, Inc. and Mitsubishi Chemical Mkv Company. His experience in these organizations has allowed him to refine his expertise in polymer production and contribute to various innovative projects.
Collaborations
Takeda has collaborated with esteemed colleagues, including Katsushige Hayashi and Tsutomu Kawakami. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in polymer technology.
Conclusion
Yuji Takeda's contributions to the field of phenylene ether production exemplify his innovative spirit and dedication to advancing polymer chemistry. His patents and collaborations continue to influence the industry, showcasing the importance of research and development in creating new materials.