Ryoji Yashiro

Title: Ryoji Yashiro: Patents in Organic Luminescence and Electrophotography

Introduction

Ryoji Yashiro is an inventor associated with Yamanashi, Japan, and Canon Kabushiki Kaisha. His patent work includes technologies for organic luminescent devices and electrophotographic photosensitive members. He is credited with 5 patents.

Latest Patents

Two of Yashiro’s latest patents concern materials and components for electronic and imaging applications.

“Fluorene Compound and Organic Luminescent Device Using the Same” describes a fluorene compound for use in an organic luminescent device. The invention aims to provide high-luminance optical output with high efficiency and durability.

“Photosensitive Member for Electrophotography” describes a photosensitive member comprising an electroconductive substrate and a photosensitive layer. The layer includes a triarylamine compound with specified aromatic groups, including at least one aromatic fused-ring hydrocarbon group. The design relates to photosensitive components used in electrophotographic systems.

Career Highlights

Yashiro’s listed inventions reflect work on functional organic compounds and device materials. His association with Canon Kabushiki Kaisha connects his patent activity with a company active in imaging and related technologies.

Collaborations

Yashiro’s listed coworkers include Akihiro Senoo and Toshihiro Kikuchi.

Conclusion

Ryoji Yashiro’s patent portfolio highlights contributions to organic luminescent devices and electrophotographic photosensitive members, with a focus on materials designed for performance and durability.