Yongin-si, South Korea

Tsuyoshi Naijo

This inventor holds 6 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignee: Samsung Display Co., Ltd.. Active years: 2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tsuyoshi Naijo. Retrieved from https://idiyas.com/inventor/tsuyoshi-naijo-s682npk5

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 6 

% Patents Active = 83.3

 

Average Co-Inventor Count = 4.6

ph-index = 1


Company Filing History:


Years Active: 2026

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6 patents (USPTO):Explore Patents

Title: Tsuyoshi Naijo: Innovator in Light-Emitting Technology

Introduction

Tsuyoshi Naijo is a prominent inventor based in Yongin-si, South Korea. He has made significant contributions to the field of light-emitting devices, holding a total of 6 patents. His work focuses on developing advanced technologies that enhance electronic apparatuses.

Latest Patents

Naijo's latest patents include a light-emitting device and an electronic apparatus that incorporates this device. The light-emitting device features a first electrode, a second electrode facing the first electrode, and an interlayer situated between them. This interlayer consists of an emission layer and at least one of an emission auxiliary layer or a buffer layer. The emission layer is composed of a host and a dopant, which includes a first and a second emissive compound. Additionally, the emission auxiliary layer or buffer layer contains a third emissive compound. Another notable patent is for an organic light-emitting device and a display apparatus that includes this device. This organic light-emitting device comprises a first electrode, a second electrode, and an organic layer positioned between them. The organic layer contains an emission layer that includes three distinct compounds, ensuring that the first and second compounds differ from one another.

Career Highlights

Tsuyoshi Naijo is currently employed at Samsung Display Co., Ltd., where he continues to innovate in the field of display technologies. His work has been instrumental in advancing the capabilities of light-emitting devices, which are crucial for modern electronic displays.

Collaborations

Naijo collaborates with talented coworkers, including Hyewon Choi and SeulOng Kim, contributing to a dynamic and innovative work environment.

Conclusion

Tsuyoshi Naijo's contributions to light-emitting technology exemplify his commitment to innovation and excellence in the field. His patents reflect a deep understanding of electronic apparatuses and their components, paving the way for future advancements in display technology.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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