Ryuichi Nakagami

Title: Ryuichi Nakagami: Innovator in Flexible Circuit Technology

Introduction

Ryuichi Nakagami is a notable inventor based in Ehime, Japan. He has made significant contributions to the field of flexible circuit technology, holding 2 patents that showcase his innovative approach to materials and production methods.

Latest Patents

One of Nakagami's latest patents is for a metal-laminated polyimide substrate and the method for its production. This invention aims to provide a laminated polyimide substrate that ensures various properties by effectively controlling changes over time under stringent conditions. It also guarantees sufficient adhesion between a polyimide film and a metal layer. The laminated structure consists of a polyimide layer, an alkali-treated layer containing an anionic functional group, and a metal layer, arranged in that order. This design includes a layer with a metal catalyst on the metal layer side and a layer containing a complex of the metal catalyst on the polyimide layer side.

Another significant patent is for a flexible printed circuit board and the process for producing it. This invention relates to a flexible printed circuit board that exhibits extremely high adhesion performance, allowing for the formation of very fine circuit patterns through etching. The flexible printed circuit board features a copper thin film made of copper or an alloy primarily containing copper, directly formed on at least one side of a plastic film substrate. The copper thin film has a two-layer structure, with a layer including at least a crystalline structure formed on its surface side.

Career Highlights

Throughout his career, Nakagami has worked with prominent companies such as Matsushita Electric Industrial Co., Ltd. and Ebara-udylite Co., Ltd. His experience in these organizations has contributed to his expertise in the field of flexible circuit technology.

Collaborations

Nakagami has collaborated with notable coworkers, including Kouichi Hiranaka and Mitsuhiro Fukuoka. Their joint efforts have likely played a role in advancing the innovations in which Nakagami has been involved.

Conclusion

Ryuichi Nakagami's contributions to flexible circuit technology through his patents demonstrate his innovative spirit and commitment to advancing the field. His work continues to influence the development of high-performance electronic components.