Location History:
- Kanuma, JP (2005)
- Tochigi, JP (2009 - 2013)
Company Filing History:
5 out of 122 
3 out of 58,129 
1 out of 211 Years Active: 2005-2013
Title: Innovations of Junichi Ishii: Advancements in Polyimide Resins
Introduction:
Junichi Ishii, a distinguished inventor based in Tochigi, Japan, has made significant contributions to the field of polyimide resins. With a remarkable portfolio of six patents, he has innovated new materials that have applications in various advanced technologies.
Latest Patents:
Among his latest patents, Ishii has developed a novel polyimide resin and a photosensitive polyimide resin composition. This innovative polyimide resin is formed through the imidization of a diamine component which includes an amide group-containing siloxane diamine compound. The resin incorporates an acid dianhydride component featuring aromatic compounds, such as 3,3',4,4'-diphenylsulfone tetracarboxylic dianhydride. The introduction of a crosslinking agent reaction group before imidization allows this resin to exhibit a lower elastic modulus and enhanced heat resistance, making it advantageous for creating dry films and photosensitive cover films.
In addition, he has introduced an amide group-containing siloxane amine compound, which serves as a useful diamine component in the production of polybenzimidazole and polybenzoxazole resins, particularly polyimide resins. This compound has a distinctive chemical structure that enhances its functionality and adaptability in various applications.
Career Highlights:
Throughout his career, Junichi Ishii has worked with reputable organizations, including Sony Chemical and Information Device Corporation, as well as Sony Corporation. His tenure at these companies has allowed him to contribute to cutting-edge research and development in material sciences.
Collaborations:
Ishii has collaborated with notable colleagues such as Masatoshi Hasegawa and Tomoyasu Sunaga. These partnerships have undoubtedly facilitated the exchange of innovative ideas and advancements in the field of polymer technology.
Conclusion:
Junichi Ishii's dedication to advancing polyimide resin technology reflects his significant role as an inventor. His groundbreaking patents showcase his ability to create materials that address the demands of modern technology, ensuring his legacy in the realm of innovation continues to grow.