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For the Inventor, By the Inventor

Toyohashi, Japan

Tetsuo Fujii

This inventor holds 112 USPTO granted patents and 3 EPO patents, primarily in Semiconductor Technology (CPC class G01P1-5125). Top assignees: Denso Corporation, Nippondenso Co., Ltd., Toyota Jidosha Kabushiki Kaisha. Active years: 1983-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuo Fujii. Retrieved from https://idiyas.com/inventor/tetsuo-fujii

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

Calculating rank
USPTO Granted Patents = 112

% Patents Active = 45.5

 

Average Co-Inventor Count = 2.3

ph-index = 24

Forward Citations = 2,020(Granted Patents)

Forward Citations (Not Self Cited) = 1,844(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kariya, JP (2001 - 2011)
  • Toyohashi, JP (1983 - 2016)

Company Filing History:

goldMedal79 out of 20,494 
 
Denso Corporation
 patents
silverMedal30 out of 3,252 
 
Nippondenso Co., Ltd.
 patents
bronzeMedal3 out of 39,126 
 
Toyota Jidosha Kabushiki Kaisha
 patents
4. 2 out of 240 
 
Denso Corpora Tion
 patents
5. 1 out of 5 
 
Nippondenso Corporation
 patents
where one patent can have more than one assignee

Years Active: 1983-2016

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Areas of Expertise:
Semiconductor Device
Dynamic Quantity Sensor
Physical Quantity Sensor
Manufacturing Method
SOI Substrate
Region-Divided Substrate
Electric Compressor
Angular Velocity Sensor
Laser Processing
Circuit Board
Multi-Layer Substrate
Heat Radiation Structure
112 patents (USPTO):Explore Patents
1. 9515067 - Semiconductor device having switching element and free wheel diode and method for controlling the same (2016-12-06),
2. 9366534 - Physical quantity sensor and method of making the same (2016-06-14),
3. 9029993 - Semiconductor device including semiconductor chip mounted on lead frame (2015-05-12),
4. 8941229 - Semiconductor device and method of manufacturing the same (2015-01-27),
5. 8890252 - Semiconductor device having switching element and free wheel diode and method for controlling the same (2014-11-18),
6. 8829627 - Dynamic quantity sensor device and manufacturing method of the same (2014-09-09),
7. 8815701 - Method for manufacturing semiconductor device having SOI substrate (2014-08-26),
8. 8785231 - Method of making semiconductor device (2014-07-22),
9. 8759926 - Semiconductor physical quantity sensor (2014-06-24),
10. 8749019 - Region-divided substrate, semiconductor device having region-divided substrate, and method for manufacturing the same (2014-06-10),
11. 8710568 - Semiconductor device having a plurality of elements on one semiconductor substrate and method of manufacturing the same (2014-04-29),
12. 8624367 - Semiconductor device including semiconductor chip mounted on lead frame (2014-01-07),
13. 8604565 - Physical quantity detection device and method for manufacturing the same (2013-12-10),
14. 8601871 - Physical quantity sensor and method of making the same (2013-12-10),
15. 8587168 - Electric device mounted in electric compressor (2013-11-19),

Title: The Innovative Mind of Tetsuo Fujii

Introduction: Tetsuo Fujii, a pioneering inventor hailing from Toyohashi, Japan, is renowned for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Tetsuo Fujii holds several patents in the realm of robotics, artificial intelligence, and renewable energy, showcasing his continuous dedication to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Tetsuo Fujii has worked tirelessly to develop cutting-edge solutions that have revolutionized various industries. His innovative spirit and commitment to excellence have earned him recognition as a trailblazer in the world of invention.

Collaborations: Throughout his career, Tetsuo Fujii has collaborated with leading research institutions, universities, and tech companies to bring his visionary ideas to life. His ability to work seamlessly in multidisciplinary teams has led to the creation of transformative technologies that have had a lasting impact on society.

Conclusion: Tetsuo Fujii's passion for innovation, coupled with his relentless pursuit of excellence, has solidified his position as a visionary inventor whose work continues to inspire future generations of innovators.

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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