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For the Inventor, By the Inventor

Miyagi, Japan

Hiraku Abe

This inventor holds 10 USPTO granted patents. Top assignee: Alps Electric Co., Ltd.. Active years: 1987-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiraku Abe. Retrieved from https://idiyas.com/inventor/hiraku-abe

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

Calculating rank
USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 6

Forward Citations = 288(Granted Patents)


Location History:

  • Furukawa, JP (1987 - 1989)
  • Miyagi, JP (1988 - 1992)
  • Iwadeyama, JP (1992)

Company Filing History:

goldMedal10 out of 4,048 
 
Alps Electric Co., Ltd.
 patents

Years Active: 1987-1992

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10 patents (USPTO):Explore Patents
1. 5087879 - Construction for adjustably mounting sensor portion of magnetic rotation (1992-02-11),
2. 5081756 - Methods for assembling and adjusting a magnetic encoder device (1992-01-21),
3. 4959574 - Precision Gap Magnetic Encode Device (1990-09-25),
4. 4845456 - Magnetic sensor (1989-07-04),
5. 4806751 - Code wheel for a reflective type optical rotary encoder (1989-02-21),
6. 4780610 - Optical rotary encoder having superposed metal plate and shield plate (1988-10-25),
7. 4727356 - Optical rotary encoder (1988-02-23),
8. 4707062 - Star-shaped coupler (1987-11-17),
9. 4661697 - Optically reflecting code plate (1987-04-28),
10. 4644156 - Code wheel for reflective optical rotary encoders (1987-02-17),

Title: Hiraku Abe: Innovator in Magnetic Sensor Technology

Introduction

Hiraku Abe is a prominent inventor based in Miyagi, Japan. He has made significant contributions to the field of magnetic sensor technology, holding a total of 10 patents. His work focuses on enhancing the precision and efficiency of magnetic encoders and sensors.

Latest Patents

One of Hiraku Abe's latest patents is titled "Construction for adjustably mounting sensor portion of magnetic rotation." This invention discloses a magnetic rotation sensor designed to improve the precision of the size between a first hole for positioning a magnetic rotation drum and second holes for positioning pin guides. By maintaining a high precision in the outer diameter of the pin guides, the gap between the drum and the sensor can be kept precise with minimal adjustments. Another notable patent is "Methods for assembling and adjusting a magnetic encoder device." This patent provides methods for assembling a magnetic encoder that minimizes fluctuations in the magnetic gap due to temperature changes. The magnetic encoder includes a magnetic scale with a detectable magnetic pattern, a sensor retainer, and a supporting member. The invention involves affixing a jig to the sensor retainer's surface and adjusting it until the gap between the magnetic scale and the sensor reaches a predetermined width.

Career Highlights

Hiraku Abe is currently employed at Alps Electric Co., Ltd., where he continues to innovate in the field of magnetic sensors. His work has been instrumental in advancing the technology used in various applications, enhancing both performance and reliability.

Collaborations

Throughout his career, Hiraku Abe has collaborated with notable colleagues, including Yoshihiro Takahashi and Ichiro Tokunaga. These collaborations have contributed to the development of cutting-edge technologies in the field.

Conclusion

Hiraku Abe's contributions to magnetic sensor technology exemplify his dedication to innovation and precision. His patents reflect a commitment to improving the functionality and reliability of magnetic encoders, making a lasting impact in the industry.

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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