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For the Inventor, By the Inventor

Himeji, Japan

Yoshifumi Akae

This inventor holds 12 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1985-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshifumi Akae. Retrieved from https://idiyas.com/inventor/yoshifumi-akae

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

USPTO Granted Patents = 12

% Patents Active = 100.0

Average Co-Inventor Count = 4.7

ph-index = 6

Forward Citations = 105(Granted Patents)


Location History:

  • Himeji, JP (1985 - 1989)
  • Hyogo, JP (1986 - 1989)

Company Filing History:

goldMedal12 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents

Years Active: 1985-1989

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12 patents (USPTO):Explore Patents
1. 4871936 - Commutator for a starter motor (1989-10-03),
2. 4821588 - Starter motor (1989-04-18),
3. 4680979 - Planetary gear starter (1987-07-21),
4. 4622930 - Engine starter protecting device (1986-11-18),
5. 4596159 - Starting system for internal combustion engine (1986-06-24),
6. 4590385 - Automatic starter (1986-05-20),
7. 4570583 - Engine starter protecting device (1986-02-18),
8. 4558992 - Pump device (1985-12-17),
9. 4553441 - Starting system for internal combustion engine (1985-11-19),
10. 4543923 - Engine starter (1985-10-01),
11. 4500794 - Apparatus for automatically starting and stopping engine (1985-02-19),
12. 4497291 - Full economizer for vehicles (1985-02-05),

Title: The Innovations of Yoshifumi Akae

Introduction

Yoshifumi Akae is a prominent inventor based in Himeji, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of starter motors. With a total of 12 patents to his name, Akae's work has had a lasting impact on the industry.

Latest Patents

One of his latest patents is a commutator for a starter motor. This innovative commutator comprises a plurality of segments electrically connected to armature coils, an insert member fitted to an armature shaft, and a glass-fiber-reinforced phenol resin molded to integrate the segments with the insert member. Notably, mica particles in a range of 5%-10% by weight are uniformly contained in the resin, enhancing the performance and durability of the commutator.

Career Highlights

Yoshifumi Akae has spent a significant portion of his career at Mitsubishi Electric Corporation, where he has been instrumental in advancing technologies related to starter motors. His expertise and innovative mindset have led to numerous advancements in the field.

Collaborations

Throughout his career, Akae has collaborated with talented individuals such as Akira Morishita and Isao Hamano. These collaborations have fostered a creative environment that has resulted in groundbreaking inventions.

Conclusion

Yoshifumi Akae's contributions to the field of electrical engineering, particularly in starter motor technology, showcase his innovative spirit and dedication to advancing the industry. His patents reflect a commitment to excellence and a drive to improve the functionality and reliability of electrical components.

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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