Kyouyuu Jo

Title: Kyouyuu Jo: Innovator in Photosensitive Resin Technology

Introduction

Kyouyuu Jo is a notable inventor based in Ibaraki, Japan. He has made significant contributions to the field of materials science, particularly in the development of photosensitive resin compositions and flexible printed wiring circuit boards. With a total of 3 patents to his name, Jo's work is recognized for its innovative approach and practical applications.

Latest Patents

Kyouyuu Jo's latest patents include a photosensitive resin composition and a process for producing a substrate for flexible circuit boards. The photosensitive resin composition is designed to be excellent in flame resistance, resolution, and flexibility. It is substantially free from the deposition of components that could contaminate products. This composition includes a cyclic phosphazene compound, a carboxyl-containing linear polymer, an epoxy resin, an ethylenically unsaturated group-containing polymerizable compound, and a photopolymerization initiator. The cyclic phosphazene compound is present in a proportion of 5 to 30 wt % based on the total weight of the composition.

The process for producing a substrate for flexible circuit boards involves creating a multilayered insulating resin layer that includes an insulating layer and an adhesive layer. A metal foil is then laminated to the insulating layer via the adhesive layer at a temperature not lower than the glass transition temperature of the insulating layer. This innovative process enhances the performance and reliability of flexible circuit boards.

Career Highlights

Kyouyuu Jo is currently employed at Nitto-Denko Corporation, where he continues to advance his research and development efforts. His work has been instrumental in improving the quality and functionality of electronic components, particularly in the realm of flexible electronics.

Collaborations

Throughout his career, Kyouyuu Jo has collaborated with esteemed colleagues such as Yasufumi Miyake and Masaki Mizutani. These collaborations have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Kyouyuu Jo's contributions to the field of materials science, particularly in photosensitive resin technology, have established him as a prominent inventor. His patents reflect a commitment to innovation and practical solutions in the electronics industry.