Kanagawa, Japan

Kohji Hanawa

This inventor holds 18 USPTO granted patents and 4 published patent applications and 3 EPO patents. Top assignees: Sony Corporation, Joled Inc.. Active years: 2007-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kohji Hanawa. Retrieved from https://idiyas.com/inventor/kohji-hanawa

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

USPTO Granted Patents = 18 

% Patents Active = 38.9

 

Average Co-Inventor Count = 3.4

ph-index = 7

Forward Citations = 217(Granted Patents)


Company Filing History:


Years Active: 2007-2021

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18 patents (USPTO):Explore Patents

Title: Kohji Hanawa: Innovator in Display Technology

Introduction

Kohji Hanawa is a prominent inventor located in Kanagawa, Japan, renowned for his contributions to display technology. With a remarkable portfolio of 18 patents, he has made significant advancements in organic light-emitting diode (OLED) displays and other related technologies.

Latest Patents

Kohji Hanawa's latest patents showcase his cutting-edge innovations in display units. One of his notable inventions describes a display unit that features a plurality of light-emitting devices. Each of these devices includes a function layer comprising at least an organic layer sandwiched between a first electrode and a second electrode. This design incorporates a resonator structure, which resonates light using the space between the electrodes as a resonant section, enabling efficient light extraction. Additionally, he developed an organic EL display unit that comprises a first substrate, a second substrate, and a display layer containing an organic layer. This device also features a sealing section that ensures structural integrity and enhances performance.

Career Highlights

Throughout his career, Kohji Hanawa has worked with esteemed companies such as Sony Corporation and Joled Inc. His expertise in display technology has significantly influenced the development of modern electronic devices, bolstering the capabilities of OLED technology in consumer products.

Collaborations

Kohji has collaborated with several professionals in the field, including noteworthy colleagues like Jiro Yamada and Mitsuhiro Kashiwabara. These partnerships have further propelled innovation in display technologies and have led to advancements in the development processes.

Conclusion

Kohji Hanawa stands out as a leading inventor in the realm of display technologies. His 18 patents reflect his dedication to enhancing the performance and efficiency of organic display units. With his wealth of experience and innovative spirit, he continues to shape the future of display technology, contributing significantly to both his employers and the industry at large.

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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