logo

For the Inventor, By the Inventor

Tokyo, Japan

Masahiko Fujita

This inventor holds 77 USPTO granted patents and 5 published patent applications and 11 EPO patents, primarily in Rotary Electric Machines (CPC class H02K). Top assignees: Mitsubishi Electric Corporation, Mitsubishi Denki Kabushiki Kaisha, Nsk Corporation. Active years: 2000-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiko Fujita. Retrieved from https://idiyas.com/inventor/masahiko-fujita

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

Calculating rank
USPTO Granted Patents = 77 

% Patents Active = 45.5

 

Average Co-Inventor Count = 2.7

ph-index = 9

Forward Citations = 310(Granted Patents)

Forward Citations (Not Self Cited) = 285(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Chiyoda-ku, JP (2011 - 2018)
  • Tokyo, JP (2000 - 2020)

Company Filing History:

goldMedal49 out of 16,618 
 
Mitsubishi Electric Corporation
 patents
silverMedal27 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents
bronzeMedal1 out of 2,468 
 
Nsk Corporation
 patents

Years Active: 2000-2025

Loading Chart...
Loading Chart...
Areas of Expertise:
Rotary Electric Machine
Power Semiconductor Device
Electric Rotating Machine
Controller-Integrated Machine
Dynamoelectric Machine
Heat Sink Cooling
Generator Motor
Automotive Control
Power Supply Unit
Control Method
Electrical Machine
Brush Structure
77 patents (USPTO):Explore Patents
1. 12413170 - Power source device and electric power steering device (2025-09-09),
2. 10840844 - Controller for rotary electric machine (2020-11-17),
3. 10627258 - Resolver (2020-04-21),
4. 10432069 - Controller-integrated rotary electric machine (2019-10-01),
5. 10263495 - Rotary electric machine (2019-04-16),
6. 10192811 - Power semiconductor device (2019-01-29),
7. 10170957 - Controlling device integrated rotating electric machine (2019-01-01),
8. 10090736 - Rotary electric machine integrated with control device (2018-10-02),
9. 10069374 - Rotary electric machine having an heat sink with semiconductor modules attached (2018-09-04),
10. 9935526 - Electric rotating machine (2018-04-03),
11. 9812929 - Electric rotating machine (2017-11-07),
12. 9712100 - Electric rotating machine and control method therefor (2017-07-18),
13. 9698646 - Rotating electrical machine (2017-07-04),
14. 9696178 - Rotating electrical machine (2017-07-04),
15. 9667124 - Controller-integrated electric rotating machine with brush restricting elements and assembling and disassembling methods of the same (2017-05-30),

Title: Masahiko Fujita - Pioneering Inventor from Tokyo, JP

Introduction: Masahiko Fujita is a renowned inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Masahiko Fujita holds several patents in the areas of robotics, artificial intelligence, and sustainable energy solutions, showcasing his versatility and forward-thinking approach to invention.

Career Highlights: With a career spanning over two decades, Masahiko Fujita has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant advancements in various industries.

Collaborations: Throughout his career, Masahiko Fujita has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge sharing.

Conclusion: Masahiko Fujita's passion for pushing the boundaries of technology and his relentless pursuit of innovation continue to inspire the next generation of inventors and researchers worldwide.

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]
Loading…