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For the Inventor, By the Inventor

Osaka, Japan

Masaki Yamamoto

This inventor holds 130 USPTO granted patents and 18 published patent applications and 7 EPO patents, primarily in Light-Emitting Devices (CPC class G11B7-24085). Top assignees: Sharp Kabushiki Kaisha Corporation, Matsushita Electric Industrial Co., Ltd., Memory-Tech Holdings Inc.. Active years: 1977-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaki Yamamoto. Retrieved from https://idiyas.com/inventor/masaki-yamamoto

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

USPTO Granted Patents = 130 

% Patents Active = 47.7

 

Average Co-Inventor Count = 3.4

ph-index = 16

Forward Citations = 1,036(Granted Patents)

Forward Citations (Not Self Cited) = 985(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Suita, JA (1977)
  • Tokyo, JP (1991 - 1994)
  • Uji, JP (2001 - 2003)
  • Otsuka-cho, Ota-ku, Tokyo, JP (2003)
  • Kyoto, JP (1981 - 2005)
  • Matsuyama, JP (2004 - 2006)
  • Kadoma, JP (2007)
  • Kawasaki, JP (2002 - 2013)
  • Kitakyushu, JP (2013)
  • Yamatokoriyama, JP (2008 - 2015)
  • Yokohama, JP (2002 - 2017)
  • Osaka, JP (1983 - 2018)
  • Nara, JP (1987 - 2022)
  • Sakai, JP (2017 - 2024)

Company Filing History:

goldMedal75 out of 25,949 
 
Sharp Kabushiki Kaisha Corporation
 patents
silverMedal26 out of 27,375 
 
Matsushita Electric Industrial Co., Ltd.
 patents
bronzeMedal15 out of 19 
 
Memory-Tech Holdings Inc.
 patents
4. 7 out of 16,454 
 
Panasonic Corporation
 patents
5. 7 out of 1,858 
 
Takeda Chemical Industries, Inc.
 patents
6. 4 out of 39,371 
 
Fujitsu Corporation
 patents
7. 4 out of 12 
 
Memory-Tech Corporation
 patents
8. 3 out of 13,338 
 
Panasonic Intellectual Property Management Co., Ltd.
 patents
9. 2 out of 4,487 
 
Daikin Industries, Ltd.
 patents
10. 2 out of 2,422 
 
Mitsubishi Chemical Corporation
 patents
11. 1 out of 61 
 
Espec Corporation
 patents
12. 1 out of 663 
 
Lintec Corporation
 patents
13. 1 out of 847 
 
Sharp Corporation
 patents
14. 1 out of 171 
 
Toppan Inc.
 patents
15. 1 out of 299 
 
Wako Pure Chemical Industries, Inc.
 patents
16. 2 out of 834,453 
Other
 patents
where one patent can have more than one assignee

Years Active: 1977-2026

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Areas of Expertise:
Light-Emitting Element
Quantum Dot Solution
Display Device
Carbon Dioxide Control
Optical Information Medium
Reproducing Device
Solar Tracker
Assist Garment
Semiconductor Device
Network System
Robot Arm Control
130 patents (USPTO):Explore Patents
1. 12740223 - Electroluminescent element, light-emitting device, and method for producing electroluminescent element (2026-09-15),
2. 12641951 - Light-emitting element and display device (2026-05-26),
3. 12625036 - Environmental test apparatus with bypass flow path with flow rate control portion controlled according to temperature of compressor (2026-05-12),
4. 12604601 - Light-emitting element, quantum dot solution, and method for manufacturing light-emitting element (2026-04-14),
5. 12527151 - Light-emitting element, and method for manufacturing light-emitting element (2026-01-13),
6. 12396317 - Light-emitting element and method of manufacturing light-emitting element (2025-08-19),
7. 12371610 - Light-emitting element and method for manufacturing light-emitting element (2025-07-29),
8. 12342429 - Light-emitting device and driving method for light-emitting device (2025-06-24),
9. 12317669 - Light-emitting element, light-emitting device, and manufacturing method of light-emitting element for improving electron transport efficiency (2025-05-27),
10. 12232345 - Light-emitting device for improving internal quantum efficiency (2025-02-18),
11. 12150359 - Display device and method for manufacturing display device (2024-11-19),
12. 12150326 - Display device and method of manufacturing display device (2024-11-19),
13. 12029058 - Light emitting element and display device using same (2024-07-02),
14. 11676634 - Method for playing back information recording medium (2023-06-13),
15. 11445769 - Assist garment, method for controlling controller of assist garment, and recording medium (2022-09-20),

Title: The Innovative Journey of Masaki Yamamoto

Introduction: Masaki Yamamoto is a pioneering inventor hailing from Osaka, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Masaki Yamamoto holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous dedication to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Masaki Yamamoto has worked tirelessly to develop cutting-edge solutions that have revolutionized industries worldwide. His innovative spirit and commitment to excellence have earned him recognition as a leading figure in the world of inventors.

Collaborations: Throughout his career, Masaki Yamamoto has collaborated with top research institutions, universities, and tech companies to bring his ideas to life. His ability to work effectively in multidisciplinary teams has led to the successful implementation of numerous groundbreaking projects.

Conclusion: Masaki Yamamoto's passion for innovation, coupled with his technical expertise, has solidified his position as a trailblazer in the world of inventors. His relentless pursuit of excellence continues to inspire future generations of innovators to push the boundaries of what is possible in the world of 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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