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For the Inventor, By the Inventor

Osaka, Japan

Youhei Nakanishi

This inventor holds 52 USPTO granted patents and 18 published patent applications, primarily in Display Technology. Top assignees: Sharp Kabushiki Kaisha Corporation, Toyo Gosei Co., Ltd., Merck Patent Gmbh. Active years: 2011-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Youhei Nakanishi. Retrieved from https://idiyas.com/inventor/youhei-nakanishi

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

USPTO Granted Patents = 52 

% Patents Active = 69.2

Average Co-Inventor Count = 2.8

ph-index = 3

Forward Citations = 32(Granted Patents)

Forward Citations (Not Self Cited) = 26(Dec 10, 2025)


Location History:

  • Katsuragi, JP (2011)
  • Osaka, JP (2013 - 2018)
  • Sakai, JP (2018 - 2024)

Company Filing History:

goldMedal47 out of 25,974 
 
Sharp Kabushiki Kaisha Corporation
 patents
silverMedal5 out of 49 
 
Toyo Gosei Co., Ltd.
 patents
bronzeMedal4 out of 3,025 
 
Merck Patent Gmbh
 patents
4. 1 out of 388 
 
Denka Company Limited
 patents
5. 1 out of 7 
 
Tecnisco Limited
 patents
6. 1 out of 9 
 
Unified Innovative Technology, LLC
 patents
where one patent can have more than one assignee

Years Active: 2011-2025

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Areas of Expertise:
Display Device
Liquid Crystal Display
Light-Emitting Device
Manufacturing Method
Quantum Dots
Metal Nanowires
Active Matrix Substrate
Photoelectric Conversion
Thermally Activated Delayed Fluorescence
Electron Transport Layer
Nanoparticles
Uniform Film Thickness
52 patents (USPTO):Explore Patents
1. 12310191 - Display device and manufacturing method for display device (2025-05-20),
2. 12279489 - Display device and having common electrode with metal nanowires (2025-04-14),
3. 12279471 - Display device (2025-04-14),
4. 12274114 - Display device including metal oxide nanoparticles for uniform and efficient lighting and method for producing same (2025-04-08),
5. 12150331 - Display device having a thin electrode that has a uniform film thickness (2024-11-19),
6. 12101968 - Display device (2024-09-24),
7. 12082430 - Light-emitting device, method for manufacturing light-emitting device, and apparatus for manufacturing light-emitting device (2024-09-03),
8. 12022673 - Display device including electron transport layer having nanoparticle of metal oxide (2024-06-25),
9. 11963402 - Display device having auxiliary wiring line electrically connected to metal nanowire (2024-04-16),
10. 11957001 - Display device and method of manufacturing display device (2024-04-09),
11. 11778843 - Light-emitting device and manufacturing method of light-emitting device (2023-10-03),
12. 11502266 - Light emitting element comprising quantum dots and method for producing light emitting element (2022-11-15),
13. 11377591 - Liquid composition, photoelectric conversion element production method, and photoelectric conversion element (2022-07-05),
14. 11217763 - Light-emitting device including light-emitting layer in which thermally activated delayed fluorescence bodies and quantum dots are dispersed and manufacturing apparatus of light-emitting device (2022-01-04),
15. 10957815 - Light-emitting device (2021-03-23),

Title: Innovations by Youhei Nakanishi: A Pioneer in Display Technology

Introduction

Youhei Nakanishi is a prominent inventor based in Osaka, Japan, who has made significant contributions to the field of display technology. With an impressive portfolio of 48 patents, his work focuses on enhancing the efficiency and functionality of display devices.

Latest Patents

Among his latest innovations, Nakanishi has developed a display device that features a thin electrode with a uniform film thickness. This invention includes a thin film transistor (TFT) layer and a light-emitting element layer that incorporates multiple light-emitting elements. Each element comprises a first electrode, a function layer, and a second electrode, which serves as a common electrode for all elements and utilizes metal nanowires. Furthermore, the function layer consists of a light-emitting layer along with an electron transport layer that contains zinc oxide nanoparticles mixed with a water-soluble resin. Another noteworthy display device developed by Nakanishi includes a light-emitting element layer with various elements designed to emit light in different luminescent colors, also featuring metal nanowires in the second electrode and a pixel bank for effective segmentation.

Career Highlights

Throughout his career, Nakanishi has worked with notable companies such as Sharp Corporation and Toyo Gosei Co., Ltd. His innovative work in these companies has led to advancements in display technology, cementing his reputation as a leader in the field.

Collaborations

Nakanishi has collaborated with esteemed coworkers, including Masayuki Kanehiro and Masanobu Mizusaki. Together, they have contributed to pioneering advancements in display technologies that continue to shape the industry.

Conclusion

Youhei Nakanishi's commitment to innovation in display technology is evident through his substantial number of patents and collaborations. His work not only showcases his ingenuity as an inventor but also reflects the potential for further advancements in the realm of display devices.

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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