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For the Inventor, By the Inventor

Saitama, Japan

Kenji Kofuji

This inventor holds 18 USPTO granted patents and 6 EPO patents, primarily in Motorcycle Engineering. Top assignees: Honda Motor Co., Ltd., Honda Giken Kogyo Kabushiki Kaisha, Showa Corporation. Active years: 2005-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kenji Kofuji. Retrieved from https://idiyas.com/inventor/kenji-kofuji

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

USPTO Granted Patents = 18

% Patents Active = 33.3

 

Average Co-Inventor Count = 1.8

ph-index = 5

Forward Citations = 125(Granted Patents)


Location History:

  • Tokyo, JP (2005 - 2011)
  • Saitama, JP (2006 - 2011)
  • Wako, JP (2012 - 2019)

Company Filing History:

goldMedal16 out of 22,006 
 
Honda Motor Co., Ltd.
 patents
silverMedal2 out of 10,092 
 
Honda Giken Kogyo Kabushiki Kaisha
 patents
bronzeMedal1 out of 438 
 
Showa Corporation
 patents
where one patent can have more than one assignee

Years Active: 2005-2019

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Areas of Expertise:
Swing Arm Structure
Motorcycle Suspension
Wheel Speed Sensor
Final Gear Transmission
Shaft Drive
Disk Brake Device
Rear Wheel Support
Link-Type Suspension
Breather Structure
Two-Wheeled Vehicles
Compact Swing Arm
Vehicle Design
18 patents (USPTO):Explore Patents
1. 10286976 - Swing arm structure for saddle riding type vehicle (2019-05-14),
2. 9415829 - Rear wheel suspension structure of motorcycle (2016-08-16),
3. 8444164 - Wheel speed sensor mounting structure (2013-05-21),
4. 8297398 - Two-wheeled motor vehicle (2012-10-30),
5. 8051963 - Motorcycle (2011-11-08),
6. 8002068 - Final gear transmission mechanism for a motorcycle, and motorcycle incorporating same (2011-08-23),
7. 7971674 - Shaft drive type motorcycle (2011-07-05),
8. 7946374 - Vehicle (2011-05-24),
9. 7926611 - Shaft drive device (2011-04-19),
10. 7913824 - Disk brake device (2011-03-29),
11. 7913793 - Shaft-driven motorcycle with pivotally mounted swing arm and related support structure (2011-03-29),
12. 7874397 - Breather structure of shaft-drive-type drive device (2011-01-25),
13. 7810603 - Compact swing arm structure for a shaft-driven vehicle, and vehicle incorporating same (2010-10-12),
14. 7717211 - Swing arm structure with shaft drive and spacer (2010-05-18),
15. 7644797 - Motorcycle (2010-01-12),

Title: Kenji Kofuji: Innovator in Motorcycle Suspension Technology

Introduction

Kenji Kofuji is a prominent inventor based in Saitama, Japan, known for his significant contributions to motorcycle suspension technology. With a total of 18 patents to his name, Kofuji has made a lasting impact in the field of vehicle engineering.

Latest Patents

Kofuji's latest innovations include a swing arm structure for saddle riding type vehicles. This design features pivot shafts extending in the vehicle width direction, which are integrated into the vehicle body frame. The structure includes wall portions that accommodate the pivot shafts and an interposed portion that has pass-through sections for the shafts. Another notable patent is the rear wheel suspension structure of a motorcycle. This design incorporates a body frame and a swing arm that is supported by a pivot shaft, allowing for efficient drive power transmission to the rear wheel.

Career Highlights

Throughout his career, Kofuji has worked with renowned companies such as Honda Motor Co., Ltd. and Honda Giken Kogyo Kabushiki Kaisha. His experience in these organizations has allowed him to refine his skills and contribute to innovative motorcycle designs.

Collaborations

Kofuji has collaborated with notable coworkers, including Taisuke Nimura and Hidetoshi Toyoda. Their combined expertise has fostered advancements in motorcycle technology.

Conclusion

Kenji Kofuji's work in motorcycle suspension technology exemplifies his innovative spirit and dedication to engineering excellence. His patents continue to influence the design and functionality of modern motorcycles.

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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