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For the Inventor, By the Inventor

Katsuta, Japan

Osamu Nagura

This inventor holds 9 USPTO granted patents and 3 EPO patents. Top assignees: Hitachi, Ltd., The Kansai Electric Power Co., Inc., Hitachi Mitsubishi Hydro Corporation. Active years: 1987-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Osamu Nagura. Retrieved from https://idiyas.com/inventor/osamu-nagura

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

USPTO Granted Patents = 9

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.8

ph-index = 6

Forward Citations = 103(Granted Patents)


Location History:

  • Katsuta, JP (1987 - 1990)
  • Hitachinaka, JP (1999)
  • Tokyo, JP (2020)

Company Filing History:

goldMedal7 out of 42,740 
 
Hitachi, Ltd.
 patents
silverMedal4 out of 195 
 
The Kansai Electric Power Co., Inc.
 patents
bronzeMedal2 out of 13 
 
Hitachi Mitsubishi Hydro Corporation
 patents
where one patent can have more than one assignee

Years Active: 1987-2020

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9 patents (USPTO):Explore Patents
1. 10784808 - Variable speed generator-motor apparatus and variable speed generator-motor system (2020-09-22),
2. 10536104 - Variable speed generator-motor apparatus and variable speed generator-motor system (2020-01-14),
3. 5886417 - Electrical power generating installation and method of operating same (1999-03-23),
4. 4980629 - AC-excited generator/motor apparatus (1990-12-25),
5. 4952852 - Power system and synchronizing breakers for a variable speed generator (1990-08-28),
6. 4926541 - Method of assembling wound rotor of vertical type adjustable speed (1990-05-22),
7. 4870339 - Variable-speed power generating system (1989-09-26),
8. 4812730 - Variable-speed generator/motor system (1989-03-14),
9. 4652807 - Starting method for induction motors (1987-03-24),

Title: The Innovative Mind of Osamu Nagura: Revolutionizing Variable Speed Generator-Motor Systems

Introduction:

Osamu Nagura, a prolific inventor hailing from Katsuta, Japan, is a trailblazer in the realm of variable speed generator-motor systems. With a remarkable intellect and inventive spirit, Nagura has left an indelible mark on the field of electrical engineering.

Latest Patents:

Nagura's latest patents showcase his ingenuity in the design and implementation of variable speed generator-motor apparatus and systems. His inventions feature intricate power converters and AC rotating electric machines, all aimed at optimizing energy efficiency and performance.

Career Highlights:

Throughout his illustrious career, Nagura has made significant contributions to renowned companies such as Hitachi, Ltd. and The Kansai Electric Power Co., Inc. His expertise and innovative solutions have propelled these organizations to new heights in the realm of electrical engineering.

Collaborations:

Nagura's collaborative spirit is evident in his partnerships with esteemed colleagues such as Akira Bando and Hiroto Nakagawa. Together, they have worked tirelessly to push the boundaries of technology and bring cutting-edge solutions to fruition.

Conclusion:

In conclusion, Osamu Nagura stands as a beacon of innovation in the field of variable speed generator-motor systems. His unwavering dedication to pushing the boundaries of what is possible serves as an inspiration to aspiring inventors and engineers 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]
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