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For the Inventor, By the Inventor

Fukuyama, Japan

Fumiyuki Hisatsune

This inventor holds 19 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1983-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Fumiyuki Hisatsune. Retrieved from https://idiyas.com/inventor/fumiyuki-hisatsune

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

USPTO Granted Patents = 19

% Patents Active = 100.0

Average Co-Inventor Count = 4.1

ph-index = 7

Forward Citations = 127(Granted Patents)


Location History:

  • Hiroshima, JP (1989)
  • Fukuyama, JP (1983 - 1994)

Company Filing History:

goldMedal19 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents

Years Active: 1983-1994

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19 patents (USPTO):Explore Patents
1. D347623 - Air circuit breaker (1994-06-07),
2. 4885441 - Circuit Breaker (1989-12-05),
3. 4866226 - Multi-phase circuit breaker employing arc extinguishing apparatus (1989-09-12),
4. 4749829 - Circuit breaker (1988-06-07),
5. 4689588 - Circuit breaker (1987-08-25),
6. 4642428 - Circuit interrupter (1987-02-10),
7. 4575598 - Circuit breaker (1986-03-11),
8. 4559423 - Circuit interrupter (1985-12-17),
9. 4521653 - Circuit breaker with arc light absorber (1985-06-04),
10. 4516003 - Circuit breaker with arc light absorber (1985-05-07),
11. 4516002 - Circuit breaker with arc light absorber (1985-05-07),
12. 4464642 - Circuit breaker (1984-08-07),
13. 4459445 - Circuit breaker (1984-07-10),
14. 4454395 - Circuit breaker (1984-06-12),
15. 4453053 - Circuit breaker with arc restricting device (1984-06-05),

Title: Fumiyuki Hisatsune: Innovator in Circuit Breaker Technology

Introduction: Fumiyuki Hisatsune is a prominent inventor based in Fukuyama, Japan. With an impressive portfolio of 19 patents, he has made significant contributions to the field of electrical engineering. His innovative spirit is exemplified in his latest developments, particularly in circuit breaker technology.

Latest Patents: His most recent patent focuses on the design of an air circuit breaker. This circuit breaker features an arc-extinguishing structure, which includes a protrusion formed on an arc-running surface of the arc-runner. This innovation allows for the smooth movement of the arc, leading to its quick extinction, thereby enhancing the safety and efficiency of electrical systems.

Career Highlights: Fumiyuki is affiliated with Mitsubishi Electric Corporation, a renowned company known for its advancements in technology. His dedication to innovation has not only led to the development of critical electrical components but has also established him as a key figure in his field.

Collaborations: Throughout his career, Fumiyuki has collaborated with talented coworkers such as Shinji Yamagata and Hajimu Yoshiyasu. Together, they have worked on various projects that underscore their commitment to advancing technology in the electrical engineering sector.

Conclusion: Fumiyuki Hisatsune's contributions to circuit breaker technology and his impressive array of patents highlight his role as a leading inventor in the industry. His ongoing innovations not only reflect his personal dedication but also contribute to the wider advancements within Mitsubishi Electric Corporation.

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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