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For the Inventor, By the Inventor

Kasugai, Japan

Koichi Hasegawa

This inventor holds 56 USPTO granted patents and 13 published patent applications and 15 EPO patents, primarily in Vibration Power Generation. Top assignees: Tokai Rubber Industries, Ltd., Sumitomo Riko Company Limited, Mitsubishi Heavy Industries Limited. Active years: 1987-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koichi Hasegawa. Retrieved from https://idiyas.com/inventor/koichi-hasegawa

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

USPTO Granted Patents = 56 

% Patents Active = 66.1

 

Average Co-Inventor Count = 2.7

ph-index = 7

Forward Citations = 173(Granted Patents)

Forward Citations (Not Self Cited) = 159(Dec 10, 2025)


Location History:

  • Toyota, JP (1987)
  • Nigata, JP (2002)
  • Champaign, IL (US) (2008)
  • Kurobe, JP (2011)
  • Atsugi, JP (2009 - 2012)
  • Komaki, JP (2003 - 2014)
  • Aichi-ken, JP (2016)
  • Kasugai, JP (2002 - 2018)
  • Nagoya, JP (2010 - 2023)
  • Tokyo, JP (2010 - 2024)
  • Aichi, JP (2014 - 2024)

Company Filing History:

goldMedal15 out of 720 
 
Tokai Rubber Industries, Ltd.
 patents
silverMedal14 out of 372 
 
Sumitomo Riko Company Limited
 patents
bronzeMedal11 out of 4,746 
 
Mitsubishi Heavy Industries Limited
 patents
4. 4 out of 38,912 
 
Toyota Jidosha Kabushiki Kaisha
 patents
5. 3 out of 28,940 
 
Ricoh Company, Ltd.
 patents
6. 2 out of 1,078 
 
Jsr Corporation
 patents
7. 2 out of 165 
 
Mitsubishi Aircraft Corporation
 patents
8. 2 out of 13,338 
 
Panasonic Intellectual Property Management Co., Ltd.
 patents
9. 2 out of 7,654 
 
Renesas Electronics Corporation
 patents
10. 1 out of 676 
 
Aisin Corporation
 patents
11. 1 out of 143 
 
Kobe University
 patents
12. 1 out of 12 
 
Nippondenso Kabushiki Kaisha
 patents
13. 1 out of 16,454 
 
Panasonic Corporation
 patents
14. 3 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1987-2026

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Areas of Expertise:
Vibration Power Generator
Electrostatic Transducer
Composite Material Repair
Surface Treatment
Power Generation System
Active Vibration Damper
Fluid-Filled Damping Device
Vehicle Control Device
Bending Sensor
Noise Cancellation
Resin Transfer Molding
Vibration Monitoring
56 patents (USPTO):Explore Patents
1. 12660644 - Method of manufacturing semiconductor device and semiconductor device (2026-06-16),
2. 12582016 - Semiconductor device (2026-03-17),
3. 12503010 - Sensor-equipped seat (2025-12-23),
4. 12420676 - Sensor-equipped seat (2025-09-23),
5. 12370575 - Electrostatic transducer and electrostatic transducer unit (2025-07-29),
6. 12275223 - Joint member and method for producing joint member (2025-04-14),
7. 12017424 - Fitting method and repair method (2024-06-25),
8. 11873213 - Electrostatic-type transducer and manufacturing method thereof (2024-01-16),
9. 11773959 - Driving force transmitting device (2023-10-03),
10. 11750981 - Transducer and method for manufacturing same (2023-09-05),
11. 11641554 - Transducer and manufacturing method thereof (2023-05-02),
12. 11396141 - Repair patch, method for molding repair patch, and method for repairing composite material (2022-07-26),
13. 11338529 - Repair patch, method for molding repair patch, method for repairing composite material, and molding jig (2022-05-24),
14. 11265658 - Transducer and manufacturing method thereof (2022-03-01),
15. 11111348 - Method for treating surface of resin material layer and resin material (2021-09-07),

Title: An Overview of Inventor Koichi Hasegawa

Introduction

Koichi Hasegawa, based in Kasugai, Japan, is an accomplished inventor with a remarkable portfolio of 50 patents. His innovative contributions span various fields, showcasing his expertise and commitment to advancing technology.

Latest Patents

Among his latest innovations, Hasegawa developed a fitting method and repair method. This method is designed for fitting a material that requires repair with a patch to be adhesively bonded at its surfaces. This process involves measuring the shape of both the material and the repair patch, dividing the patch's shape measurement data into manageable pieces, and performing fitting processes to ensure optimal adhesion. Another significant invention is the electrostatic-type transducer, which includes an insulator sheet made from elastomer and multiple first electrode sheets fused to its surface. These electrode sheets are strategically arranged to enhance performance, demonstrating Hasegawa's dedication to precision engineering.

Career Highlights

Throughout his impressive career, Hasegawa has been associated with prominent companies, including Tokai Rubber Industries, Ltd. and Sumitomo Riko Company Limited. His experience in these leading firms has undoubtedly contributed to his inventive capabilities and understanding of practical applications.

Collaborations

Koichi Hasegawa has also collaborated with renowned colleagues, such as Rentaro Kato and Atsushi Muramatsu. These partnerships in innovation reflect the collaborative spirit of the engineering and invention community.

Conclusion

In conclusion, Koichi Hasegawa stands out as a distinguished inventor whose contributions continue to influence the fields of repair methods and electrostatic transducers. With a strong background in reputable companies and collaborative work with notable colleagues, Hasegawa's legacy in innovation is set to endure. His work exemplifies the vital role of inventors in shaping our technological landscape.

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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