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For the Inventor, By the Inventor

Sakai, Japan

Tatsuya Ryohwa

This inventor holds 26 USPTO granted patents and 14 published patent applications, primarily in Light-Emitting Devices. Top assignees: Sharp Kabushiki Kaisha Corporation, Nara Institute of Science and Technology, Toppan Inc.. Active years: 2016-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuya Ryohwa. Retrieved from https://idiyas.com/inventor/tatsuya-ryohwa

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

USPTO Granted Patents = 26 

% Patents Active = 65.4

Average Co-Inventor Count = 3.8

ph-index = 2

Forward Citations = 14(Granted Patents)


Location History:

  • Osaka, JP (2016 - 2017)
  • Sakai, JP (2017 - 2024)

Company Filing History:

goldMedal26 out of 25,949 
 
Sharp Kabushiki Kaisha Corporation
 patents
silverMedal1 out of 114 
 
Nara Institute of Science and Technology
 patents
bronzeMedal1 out of 171 
 
Toppan Inc.
 patents
where one patent can have more than one assignee

Years Active: 2016-2026

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Areas of Expertise:
Electroluminescent Element
Light-Emitting Device
Display Device
Phosphor Nanoparticle
Photoelectric Conversion
Wavelength Conversion
Manufacturing Method
Light Emission
Image Display
Liquid Composition
Color Emission
Semiconductor Phosphor
26 patents (USPTO):Explore Patents
1. 12740223 - Electroluminescent element, light-emitting device, and method for producing electroluminescent element (2026-09-15),
2. 12666783 - Light-emitting element, light-emitting device, and method of manufacturing light- emitting element (2026-06-23),
3. 12371610 - Light-emitting element and method for manufacturing light-emitting element (2025-07-29),
4. 12349532 - Light-emitting element, light-emitting device, and method for manufacturing light-emitting element (2025-07-01),
5. 12150359 - Display device and method for manufacturing display device (2024-11-19),
6. 12150326 - Display device and method of manufacturing display device (2024-11-19),
7. 12120901 - Light-emitting element for efficiently emitting light in different colors (2024-10-15),
8. 12082430 - Light-emitting device, method for manufacturing light-emitting device, and apparatus for manufacturing light-emitting device (2024-09-03),
9. 12029058 - Light emitting element and display device using same (2024-07-02),
10. 11778843 - Light-emitting device and manufacturing method of light-emitting device (2023-10-03),
11. 11398532 - Light-emitting device, light wavelength conversion device, and display device (2022-07-26),
12. 11377591 - Liquid composition, photoelectric conversion element production method, and photoelectric conversion element (2022-07-05),
13. 11342527 - Light-emitting element having commonly formed hole transport layer and anode electrode and light-emitting device (2022-05-24),
14. 10886442 - Phosphor containing particle, and light emitting device and phosphor containing sheet using the same (2021-01-05),
15. 10483441 - Phosphor containing particle, and light emitting device and phosphor containing sheet using the same (2019-11-19),

Certainly! Here is the article about inventor Tatsuya Ryohwa:

Title: Innovator Spotlight: Tatsuya Ryohwa - Pushing the Boundaries of Light-Emitting Devices

Introduction:

Tatsuya Ryohwa, a prolific inventor based in Sakai, Japan, is making waves in the field of light-emitting devices with his groundbreaking patents and innovative designs. With a total of 17 patents to his name, Ryohwa's contributions are shaping the future of display technology and lighting solutions.

Latest Patents:

Ryohwa's recent patents showcase his expertise in the development of advanced light-emitting devices. One of his latest inventions includes a light-emitting device and a manufacturing method that incorporates quantum dot light-emitting layers to emit green and red light efficiently. Another patent focuses on a light-emitting device with a light absorption layer that enhances light conversion and extraction for improved display performance.

Career Highlights:

Having worked at reputable institutions such as Sharp Corporation and the National University Corporation Nara Institute of Science and Technology, Ryohwa has been at the forefront of cutting-edge research and development in the field of optoelectronics. His diverse experience has honed his skills in designing innovative solutions for complex technological challenges.

Collaborations:

Ryohwa has had the privilege of collaborating with industry experts such as Makoto Izumi and Mami Morishita, fostering a culture of teamwork and knowledge exchange. These partnerships have led to the successful implementation of novel concepts and the realization of groundbreaking inventions in the realm of light-emitting devices.

Conclusion:

In conclusion, Tatsuya Ryohwa stands as a pioneering figure in the realm of light-emitting devices, with a proven track record of innovation and excellence. His contributions not only reflect his technical prowess but also his dedication to pushing the boundaries of what is possible in the ever-evolving field of display technology. We look forward to witnessing the continued impact of Ryohwa's inventions on the future of optoelectronics.

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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