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For the Inventor, By the Inventor

Nagoya, Japan

Shigeru Masuda

This inventor holds 12 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1984-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeru Masuda. Retrieved from https://idiyas.com/inventor/shigeru-masuda-g5g8wrfw

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

Calculating rank
USPTO Granted Patents = 12

% Patents Active = 100.0

Average Co-Inventor Count = 4.6

ph-index = 6

Forward Citations = 102(Granted Patents)


Location History:

  • Amagasaki, JP (1984)
  • Ichinomiya, JP (1985 - 1986)
  • Hyogo, JP (1986)
  • Nagoya, JP (1984 - 1991)
  • Aichi, JP (1985 - 1992)

Company Filing History:

goldMedal12 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents

Years Active: 1984-1992

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12 patents (USPTO):Explore Patents
1. 5163175 - Switch (1992-11-10),
2. 5003137 - Switch (1991-03-26),
3. 4652707 - Power switch (1987-03-24),
4. 4628163 - Power switch (1986-12-09),
5. 4616203 - Electromagnetic contactor (1986-10-07),
6. 4612427 - Switch (1986-09-16),
7. 4596909 - Electromagnetic contactor (1986-06-24),
8. 4539451 - Switch (1985-09-03),
9. 4521655 - Electric power switch with slotted commutation end plate (1985-06-04),
10. 4489225 - Electromagnetic contactor (1984-12-18),
11. 4477704 - Power switching device (1984-10-16),
12. 4429198 - Power switchgear (1984-01-31),

Title: Shigeru Masuda: Innovator in Electromagnetic Switch Technology

Introduction

Shigeru Masuda is a prominent inventor based in Nagoya, Japan. He has made significant contributions to the field of electromagnetic switch technology, holding a total of 12 patents. His innovative designs have enhanced the performance and reliability of electrical switches used in various applications.

Latest Patents

Masuda's latest patents include a groundbreaking switch that excels in current limiting performance. This switch features a movable contact element with a pair of movable contacts, which interact with fixed contacts secured to fixed contact elements. The design incorporates an electromagnetic driving device with a movable iron core and a first operating rod. Additionally, an electromagnet is positioned alongside the driving device, facilitating the movement of the movable contact element through a transmitting member and a second operating rod. This innovative mechanism allows for efficient operation and improved safety in electrical systems. Another notable patent describes a switch designed for use as an electromagnetic contactor, circuit breaker, and air circuit breaker. This switch includes a fixed contact joined to a fixed contactor, a movable contact facing the fixed contact, and multiple arc extinguishing metallic plates that effectively interrupt large electric currents.

Career Highlights

Shigeru Masuda is associated with Mitsubishi Denki Kabushiki Kaisha, a leading company in the electrical and electronic equipment industry. His work has significantly advanced the technology behind electromagnetic switches, making them more efficient and reliable for various applications.

Collaborations

Masuda has collaborated with notable coworkers, including Teijiro Mori and Masahiro Kakizoe. Their combined expertise has contributed to the development of innovative solutions in the field of electrical engineering.

Conclusion

Shigeru Masuda's contributions to electromagnetic switch technology have established him as a key figure in the industry. His innovative patents and collaborations continue to influence advancements in electrical systems, ensuring safety and efficiency in their operation.

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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