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For the Inventor, By the Inventor

Tokyo, Japan

Akira Kuragaki

This inventor holds 15 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1994-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Akira Kuragaki. Retrieved from https://idiyas.com/inventor/akira-kuragaki

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

USPTO Granted Patents = 15

% Patents Active = 100.0

Average Co-Inventor Count = 2.9

ph-index = 5

Forward Citations = 58(Granted Patents)


Location History:

  • Hyogo, JP (1995)
  • Himeji, JP (1994 - 1996)
  • Tokyo, JP (2000 - 2002)

Company Filing History:

goldMedal15 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents

Years Active: 1994-2002

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15 patents (USPTO):Explore Patents
1. 6382037 - Starter (2002-05-07),
2. 6333567 - Starter (2001-12-25),
3. 6286378 - Starter (2001-09-11),
4. 6269706 - Starter and its installation method (2001-08-07),
5. 6268670 - Starter (2001-07-31),
6. 6225718 - Starter (2001-05-01),
7. 6202497 - Shift lever assembly for an electric starter motor (2001-03-20),
8. 6201311 - Vehicle starter with separate terminals for the motor and the excitation coil (2001-03-13),
9. 6157105 - Starter (2000-12-05),
10. 6097119 - Electric starter motor (2000-08-01),
11. 5539264 - Brush holder assembly (1996-07-23),
12. 5485048 - Brush device having a pair of U-shaped attaching pieces and tap (1996-01-16),
13. 5448122 - Brush device (1995-09-05),
14. 5332940 - Brush device (1994-07-26),
15. 5289070 - Commutator brush device for automated assembly (1994-02-22),

Title: Akira Kuragaki: Innovator in Starter Technology

Introduction

Akira Kuragaki is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of starter technology, holding a total of 15 patents. His innovative designs have advanced the functionality and efficiency of starter systems.

Latest Patents

Among his latest patents, Kuragaki has developed a starter that prevents an attracting force to the plunger from becoming insufficient. This is achieved by forming at least one of the output shaft and thrust spline from magnetic material with a lower relative permeability than iron. Another notable patent focuses on securing sufficient attractive force against a plunger by arranging an overrunning clutch. In this design, one end of the thrust spline is positioned to maintain a prescribed interval from the end of the plunger when unexcited by an exciting coil, with the output shaft's outside periphery covered by a cylinder body made of non-magnetic or less permeable material.

Career Highlights

Kuragaki's career is marked by his work at Mitsubishi Electric Corporation, where he has been instrumental in developing cutting-edge technologies. His expertise in starter systems has positioned him as a key figure in the industry.

Collaborations

Throughout his career, Kuragaki has collaborated with notable colleagues, including Shigeru Shiroyama and Koichiro Kamei. These partnerships have fostered innovation and contributed to the success of various projects.

Conclusion

Akira Kuragaki's contributions to starter technology exemplify his dedication to innovation and excellence. His patents reflect a deep understanding of engineering principles and a commitment to advancing technology.

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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