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For the Inventor, By the Inventor

Saitama, Japan

Hiroyuki Kawakubo

This inventor holds 18 USPTO granted patents and 2 EPO patents, primarily in Vehicle Powertrain Technology. Top assignees: Honda Motor Co., Ltd., Honda Giken Kogyo Kabushiki Kaisha. Active years: 1993-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Kawakubo. Retrieved from https://idiyas.com/inventor/hiroyuki-kawakubo

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 = 50.0


Average Co-Inventor Count = 2.5

ph-index = 7

Forward Citations = 117(Granted Patents)


Location History:

  • Wako, JP (2005 - 2007)
  • Saitama, JP (1993 - 2008)

Company Filing History:

goldMedal12 out of 22,006 
 
Honda Motor Co., Ltd.
 patents
silverMedal6 out of 10,092 
 
Honda Giken Kogyo Kabushiki Kaisha
 patents

Years Active: 1993-2008

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Areas of Expertise:
Vehicular Power Unit
Transmission Structure
Powertrain Assembly
Speed Change Gear
Lubrication System
Engine Crankcase
Multi-Cylinder Engine
Piston Cooling Device
Gear Position Detection
Internal Combustion Engine
Oil Passage Arrangement
Engine Balancing
18 patents (USPTO):Explore Patents
1. 7469611 - Vehicular power unit with improved transmission structure (2008-12-30),
2. 7201119 - Vehicular power unit (2007-04-10),
3. 7198021 - Powertrain assembly including modular transmission (2007-04-03),
4. 7174800 - Speed change gear drive for transmission (2007-02-13),
5. 7155996 - Lubrication system for a transmission gear mechanism (2007-01-02),
6. 7121373 - Motorcycle (2006-10-17),
7. 7104239 - Engine crankcase structure (2006-09-12),
8. 7096753 - Engine having a cartridge type transmission (2006-08-29),
9. 7055487 - Vehicle engine (2006-06-06),
10. 7055383 - Gear position detection system for a transmission (2006-06-06),
11. 7021267 - Multi-cylinder internal combustion engine and vehicle incorporating same (2006-04-04),
12. 6971362 - Threaded fastener for an internal combustion engine, and internal combustion engine incorporating same (2005-12-06),
13. 6945213 - Cylinder block for multicylinder engine (2005-09-20),
14. 6739291 - Piston cooling device for multicylinder engine (2004-05-25),
15. 5960761 - Engine with balancer device for vehicle (1999-10-05),

Title: Hiroyuki Kawakubo: Innovator in Vehicular Power Units

Introduction

Hiroyuki Kawakubo is a prominent inventor based in Saitama, Japan. He has made significant contributions to the field of vehicular technology, holding a total of 18 patents. His innovative designs focus on improving the efficiency and functionality of power units in vehicles.

Latest Patents

Kawakubo's latest patents include a "Vehicular Power Unit with Improved Transmission Structure." This invention features a transmission structure that incorporates a clutch mechanism positioned between the crankshaft and the main shaft, enhancing the vehicle's performance. The design allows for a shift drum that drives shift forks to establish multiple speeds, while reducing the number of parts and assembly time. Another notable patent is the "Vehicular Power Unit," which includes a drive-side transmission sprocket wheel and an endless transmission belt. This configuration allows for a compact design, optimizing space within the crankcase.

Career Highlights

Throughout his career, Kawakubo has worked with notable companies such as Honda Motor Co., Ltd. and Honda Giken Kogyo Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in vehicular technology and innovation.

Collaborations

Kawakubo has collaborated with talented individuals in the industry, including Toru Gunji and Hiromi Sumi. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Hiroyuki Kawakubo's contributions to vehicular power units demonstrate his commitment to innovation and excellence in engineering. His patents reflect a deep understanding of vehicle mechanics and a desire to enhance performance. His work continues to influence the automotive industry and inspire future innovations.

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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