Location History:
- Tohkai, JP (1993)
- Ibaraki, JP (1992 - 1996)
Company Filing History:
4 out of 42,496 
1 out of 1,641 Years Active: 1992-1996
Title: Takayoshi Ikeda: Innovator in Polyimide Technology
Introduction
Takayoshi Ikeda is a prominent inventor based in Ibaraki, Japan. He has made significant contributions to the field of polyimide technology, holding a total of 4 patents. His work focuses on enhancing the properties and applications of polyimide films, which are crucial in various electronic and industrial applications.
Latest Patents
One of Ikeda's latest patents is a method for forming multilayer wiring construction. This innovation utilizes low-thermal-expansivity polyimides with a linear rigid skeleton, which typically exhibit low adhesion between cured films. By interposing a polyimide with a flexible skeleton, Ikeda's method enhances adhesion between these films. The process involves forming a flexible polyimide thin film on a low-thermal-expansivity polyimide film in a half-cured state, applying metallic wiring, and then layering another adhesive thin film before adding another low-thermal-expansivity polyimide film. This results in a multilayer wiring structure with improved adhesion.
Another notable patent involves the process of forming a patterned polyimide film. This process includes converting a polyimide precursor into polyimide using a chemical imidizing reagent. A film of polyimide precursor is formed on a substrate, and a negative mask is applied. The unmasked portions are treated with the reagent to create the desired polyimide pattern, allowing for the removal of the mask and leaving behind the patterned film. This method avoids the need for high temperatures and harmful etchants.
Career Highlights
Throughout his career, Takayoshi Ikeda has worked with notable companies such as Hitachi, Ltd. and Hitachi Chemical Company, Ltd. His experience in these organizations has contributed to his expertise in polyimide technology and innovation.
Collaborations
Ikeda has collaborated with several professionals in his field, including Koji Fujisaki and Shunichi Numata. These collaborations have likely enriched his research and development efforts, leading to advancements in polyimide applications.
Conclusion
Takayoshi Ikeda's contributions to polyimide technology through his patents and career experiences highlight his role as an influential inventor. His innovative methods for enhancing polyimide films continue to impact the industry positively.