This inventor holds 5 USPTO granted patents. Top assignee: Sumitomo Chemical Company, Limited. Active years: 1983-2000.
Location History:
- Niihama, JP (1983 - 1988)
- Dusseldorf, DE (1989)
- Chiba, JP (1992)
- Tokyo, JP (2000)
Company Filing History:
Years Active: 1983-2000
Title: Michihisa Isobe: Innovator in Polymer Electrolytes and Optical Devices
Introduction
Michihisa Isobe is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the fields of polymer electrolytes and optical devices. With a total of 5 patents to his name, Isobe's work has had a considerable impact on technology and materials science.
Latest Patents
One of Isobe's latest patents is for a polymer electrolyte and the process for producing it. This polymer electrolyte comprises a sulfonated polyethersulfone with an ion-exchange group equivalent weight ranging from 870 to 5000 g/mol. It is notable for being cost-effective, easily moldable due to its solubility in organic solvents, and thermoplastic. Additionally, it is highly water-resistant and suitable for use in fuel cells. Another significant patent is for an optical device that includes a mixture of a polymer primarily made of aromatic vinyl monomer units and polyphenylene ether. This device is characterized by the average molecular weight of the polyphenylene ether, which is between 0.3 to 0.7, as expressed in terms of intrinsic viscosity measured in chloroform at 25 degrees Celsius.
Career Highlights
Isobe is currently associated with Sumitomo Chemical Company, Limited, where he continues to innovate and develop new technologies. His work has been instrumental in advancing the applications of polymers in various industries.
Collaborations
Throughout his career, Isobe has collaborated with notable colleagues, including Shozaburo Imai and Takashi Maruyama. These collaborations have further enriched his research and development efforts.
Conclusion
Michihisa Isobe's contributions to the fields of polymer electrolytes and optical devices highlight his innovative spirit and dedication to advancing technology. His patents reflect a commitment to creating practical and efficient solutions for modern challenges.