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For the Inventor, By the Inventor

Matsumoto, Japan

Masaharu Yamaji

This inventor holds 50 USPTO granted patents and 8 published patent applications and 5 EPO patents, primarily in Semiconductor Technology. Top assignees: Fuji Electric Co., Ltd., Fuji Electric Device Technology Co., Ltd.. Active years: 2006-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaharu Yamaji. Retrieved from https://idiyas.com/inventor/masaharu-yamaji

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

USPTO Granted Patents = 50 

% Patents Active = 92.0

 

Average Co-Inventor Count = 1.4

ph-index = 4

Forward Citations = 83(Granted Patents)

Forward Citations (Not Self Cited) = 61(Dec 10, 2025)


Location History:

  • Matsumoto, Nagano, JP (2016)
  • Kanagawa, JP (2018)
  • Nagano, JP (2006 - 2021)
  • Matsumoto, JP (2012 - 2022)
  • Kawasaki, JP (2023)

Company Filing History:

goldMedal49 out of 4,826 
 
Fuji Electric Co., Ltd.
 patents
silverMedal1 out of 152 
 
Fuji Electric Device Technology Co., Ltd.
 patents

Years Active: 2006-2025

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Areas of Expertise:
High Voltage Integrated Circuit
Semiconductor Device
Integrated Circuit
Resistive Element
Passive Element
Manufacturing Method
Bootstrap Diode
Current Leakage
Field Effect Transistor
Voltage Clamp Diode
ESD Resistance
Element Separation
50 patents (USPTO):Explore Patents
1. 12310099 - Semiconductor device (2025-05-20),
2. 12302614 - Semiconductor device (2025-05-13),
3. 12261117 - Semiconductor device and method of manufacturing the same (2025-03-25),
4. 11562995 - Semiconductor integrated circuit (2023-01-24),
5. 11373997 - High voltage integrated circuit device employing element separation method using high voltage junction (2022-06-28),
6. 11233052 - Method of manufacturing semiconductor integrated circuit (2022-01-25),
7. 11189685 - Resistance element and manufacturing method of resistance element (2021-11-30),
8. 11171201 - Semiconductor integrated circuit having a first buried layer and a second buried layer (2021-11-09),
9. 11146268 - High voltage integrated circuit (2021-10-12),
10. 10825812 - Semiconductor integrated circuit (2020-11-03),
11. 10727180 - Resistive element and method of manufacturing the resistive element (2020-07-28),
12. 10658504 - Semiconductor integrated circuit device (2020-05-19),
13. 10566412 - High voltage junction field effect transistor (JFET) with spiral voltage divider (2020-02-18),
14. 10566410 - High breakdown voltage passive element (2020-02-18),
15. 10547304 - Semiconductor integrated circuit for driving switching device with integrated negative voltage clamp diode (2020-01-28),

Title: The Innovative Journey of Masaharu Yamaji

Introduction: Masaharu Yamaji, a pioneering inventor hailing from Matsumoto, Japan, has made significant contributions to the field of technology through his groundbreaking inventions and patents.

Latest Patents: Masaharu Yamaji's latest patents include cutting-edge technologies in the fields of robotics, artificial intelligence, and renewable energy. His innovative solutions have garnered international recognition for their impact and ingenuity.

Career Highlights: With a career spanning over two decades, Masaharu Yamaji has established himself as a leading figure in the world of innovation. His work has revolutionized industries such as healthcare, transportation, and telecommunications, setting new standards for technological advancement.

Collaborations: Throughout his career, Masaharu Yamaji has collaborated with top research institutions, universities, and multinational corporations to bring his inventions to life. His partnerships have led to the development of groundbreaking products that have reshaped the technological landscape.

Conclusion: Masaharu Yamaji's relentless pursuit of innovation and his unwavering commitment to pushing the boundaries of technology have solidified his reputation as a visionary inventor. His contributions continue to inspire future generations of inventors and shape the future 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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