Shinji Irizawa

Title: Innovations of Shinji Irizawa in Photosensitive Resin Technology

Introduction

Shinji Irizawa is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of photosensitive resin compositions, particularly in applications related to printed wiring boards. With a total of two patents to his name, Irizawa's work has had a considerable impact on the electronics industry.

Latest Patents

Irizawa's latest patents focus on a photosensitive resin composition that can be utilized in both projection exposure and direct-write exposure machines without the need for fine adjustments. This innovation allows for the formation of resist patterns with excellent cross-sectional shapes, minimizing issues such as undercuts and omissions in the resist pattern. The composition includes an acid-modified vinyl group-containing epoxy resin, a photopolymerization initiator, a photopolymerization sensitizer that features a benzophenone compound, and a photopolymerizable compound. These advancements ensure that the resist patterns maintain favorable linearity in depth direction and exhibit excellent insulation and crack resistance reliability.

Career Highlights

Throughout his career, Shinji Irizawa has worked with prominent companies such as Hitachi Chemical Company, Ltd. and Resonac Corporation. His experience in these organizations has allowed him to refine his expertise in the development of innovative materials for electronic applications.

Collaborations

Irizawa has collaborated with notable coworkers, including Nobuhito Komuro and Yuta Daijima. Their combined efforts have contributed to the advancement of technology in the field of photosensitive resins.

Conclusion

Shinji Irizawa's contributions to the development of photosensitive resin compositions have significantly influenced the electronics industry. His innovative patents and collaborations highlight his role as a key inventor in this specialized field.