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For the Inventor, By the Inventor

Marugame, Japan

Mitsumasa Yorita

This inventor holds 13 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1984-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Mitsumasa Yorita. Retrieved from https://idiyas.com/inventor/mitsumasa-yorita

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

Calculating rank
USPTO Granted Patents = 13

% Patents Active = 100.0

Average Co-Inventor Count = 1.6

ph-index = 7

Forward Citations = 74(Granted Patents)


Location History:

  • Hyogo, JP (1985)
  • Itami, JP (1984 - 1986)
  • Amagasaki, JP (1988 - 1992)
  • Kagawa, JP (1994)
  • Marugame, JP (1996 - 1997)

Company Filing History:

goldMedal13 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents

Years Active: 1984-1997

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13 patents (USPTO):Explore Patents
1. 5646386 - Vacuum interrupter (1997-07-08),
2. 5597993 - Vacuum interrupter (1997-01-28),
3. 5495085 - Vacuum interrupter (1996-02-27),
4. 5293506 - Vacuum switch tube including windmill electrodes (1994-03-08),
5. 5118911 - High voltage vacuum insulating container (1992-06-02),
6. 5103069 - Electrode for a vacuum breaker (1992-04-07),
7. 4760222 - Vacuum circuit interrupter (1988-07-26),
8. 4740662 - Vacuum circuit interrupter (1988-04-26),
9. 4585913 - Bellows device (1986-04-29),
10. 4540861 - Contact material for vacuum circuit interrupter (1985-09-10),
11. 4537743 - Electrode composition for vacuum switch (1985-08-27),
12. 4499009 - Electrode composition for vacuum switch (1985-02-12),
13. 4473731 - Vacuum circuit interrupter (1984-09-25),

Title: The Innovative Contributions of Mitsumasa Yorita

Introduction

Mitsumasa Yorita is a prominent inventor based in Marugame, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of vacuum interrupters. With a total of 13 patents to his name, Yorita's work has had a lasting impact on the industry.

Latest Patents

Yorita's latest patents include innovative designs for vacuum interrupters. One of his patents describes a vacuum interrupter that comprises a disc-shaped stationary electrode and a disc-shaped movable electrode arranged in an evacuated envelope in opposed relationship. This design allows for efficient electrical contact and current flow when the electrodes separate. Another patent details a vacuum interrupter with electrode assemblies that have substantially the same structure, designed to be connected or disconnected from each other. Each assembly includes a coil electrode with multiple arms and arc-shaped coil parts, ensuring effective electrical connections.

Career Highlights

Throughout his career, Mitsumasa Yorita has been associated with Mitsubishi Electric Corporation, where he has contributed to various innovative projects. His expertise in electrical engineering and design has positioned him as a key figure in the development of advanced electrical components.

Collaborations

Yorita has worked alongside notable colleagues, including Hideaki Toya and Hiroshi Hasegawa. Their collaborative efforts have further enhanced the quality and impact of their inventions in the field.

Conclusion

Mitsumasa Yorita's contributions to the field of electrical engineering, particularly through his patents on vacuum interrupters, showcase his innovative spirit and dedication to advancing technology. His work continues to influence the industry and inspire future inventors.

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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