Fumio Nakajima

This inventor holds 26 USPTO granted patents, primarily in Angular Velocity Sensing. Top assignees: Citizen Watch Company, Ltd., Union Kogaku Kabushiki Kaisha. Active years: 1976-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Fumio Nakajima. Retrieved from https://idiyas.com/inventor/fumio-nakajima

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

Calculating rank

USPTO Granted Patents = 26

% Patents Active = 100.0

Average Co-Inventor Count = 1.7

ph-index = 11

Forward Citations = 340(Granted Patents)

Location History:

Tokyo, JA (1976 - 1978)
Tokorozawa, JP (1981 - 1983)
Tanashi, JP (1995 - 1997)
Tokyo, JP (1978 - 2001)

Company Filing History:

25 out of 2,004

Citizen Watch Company, Ltd.

patents

1 out of 1

Union Kogaku Kabushiki Kaisha

patent

Years Active: 1976-2001

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Areas of Expertise:

Angular Velocity Sensor

Electronic Watch

Micro Stepping Motor

Quartz Crystal Oscillator

Carriage Device

Motor Driving Circuits

High-Temperature Microscope

Pulse Motor

Stepping Motor

Drive Control System

Capacitor Switching Circuits

Electro-Mechanical Transducer

26 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6205857 - Angular velocity sensing device (2001-03-27),

2. 6170330 - Angular velocity sensor and angular velocity sensing system (2001-01-09),

3. 6151964 - Angular velocity sensing device (2000-11-28),

4. 6147936 - Electronic watch (2000-11-14),

5. 5970793 - Angular velocity sensor and angular velocity sensing system (1999-10-26),

6. 5835457 - Electronic watch and method of charging the same (1998-11-10),

7. 5798985 - Electronic watch and method of driving the same (1998-08-25),

8. 5637937 - Super-miniature motor (1997-06-10),

9. 5420548 - Quartz crystal oscillator angular velocity detector circuits (1995-05-30),

10. 4590529 - Carriage device for moving and positioning magnetic head (1986-05-20),

11. 4558244 - Micro stepping motor (1985-12-10),

12. 4480216 - Motor driving circuits (1984-10-30),

13. 4404510 - Electronic timepiece (1983-09-13),

14. 4361410 - Drive system for pulse motor (1982-11-30),

15. 4340946 - Electronic timepiece (1982-07-20),

Title: The Innovative Journey of Fumio Nakajima

Introduction: Fumio Nakajima, a pioneering inventor hailing from Tokyo, Japan, has made significant contributions to the world of technology through his groundbreaking innovations.

Latest Patents: Fumio Nakajima's recent patents include advancements in artificial intelligence algorithms for autonomous vehicles, wearable technology for healthcare monitoring, and sustainable energy solutions for urban environments.

Career Highlights: With over two decades of experience in research and development, Nakajima has led teams at prominent tech companies in Japan, spearheading projects that have received international recognition for their ingenuity and impact.

Collaborations: Nakajima has collaborated with leading universities and research institutions in Japan, fostering a culture of innovation and knowledge-sharing. His partnerships have resulted in cutting-edge inventions that have shaped various industries.

Conclusion: Fumio Nakajima's relentless pursuit of innovation and his commitment to pushing the boundaries of technology have solidified his reputation as a visionary inventor in Tokyo, Japan, and beyond.

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]