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For the Inventor, By the Inventor

Hiroshima, Japan

Ryuji Kumagai

This inventor holds 18 USPTO granted patents, primarily in Motor Vehicle Technology. Top assignee: Mazda Motor Corporation. Active years: 2008-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryuji Kumagai. Retrieved from https://idiyas.com/inventor/ryuji-kumagai

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

Calculating rank
USPTO Granted Patents = 18

% Patents Active = 100.0

Average Co-Inventor Count = 4.3

ph-index = 10

Forward Citations = 280(Granted Patents)


Company Filing History:

goldMedal18 out of 4,753 
 
Mazda Motor Corporation
 patents

Years Active: 2008-2021

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Areas of Expertise:
Motor Vehicle
Bumper Design
Headlight Technology
Rear Door
Safety Features
Vehicle Accessories
Automotive Engineering
Collision Protection
18 patents (USPTO):Explore Patents
1. D922285 - Motor vehicle (2021-06-15),
2. D883883 - Motor vehicle (2020-05-12),
3. D883881 - Motor vehicle (2020-05-12),
4. D845835 - Motor vehicle (2019-04-16),
5. D842760 - Motor vehicle (2019-03-12),
6. D819493 - Motor vehicle (2018-06-05),
7. D765546 - Motor vehicle (2016-09-06),
8. D756276 - Motor vehicle front bumper (2016-05-17),
9. D713304 - Bumper for motor vehicle (2014-09-16),
10. D701476 - Bumper for motor vehicle (2014-03-25),
11. D698290 - Bumper for motor vehicle (2014-01-28),
12. D688989 - Bumper for motor vehicle (2013-09-03),
13. D668593 - Bumper for motor vehicle (2012-10-09),
14. D595192 - Bumper of motor vehicle (2009-06-30),
15. D588506 - Bumper of motor vehicle (2009-03-17),

Title: The Innovative Mind of Ryuji Kumagai

Introduction

Ryuji Kumagai, hailing from Hiroshima, Japan, is a prominent inventor known for his contributions to the automotive industry. With an impressive portfolio of 18 patents, he has made significant strides in motor vehicle technology while working for Mazda Motor Corporation. His work continues to inspire innovation within the sector, advancing the state of automotive engineering.

Latest Patents

Among Ryuji Kumagai's latest patents is a cutting-edge motor vehicle design that aims to enhance efficiency and performance. This particular patent exemplifies his dedication to improving automotive technology and demonstrates his innovative approach to solving complex engineering challenges.

Career Highlights

Ryuji Kumagai's career at Mazda Motor Corporation has been marked by numerous achievements and contributions to the development of next-generation vehicles. His inventive spirit and technical expertise have made him a vital part of Mazda's research and development team.

Collaborations

Throughout his career, Ryuji has had the opportunity to collaborate with talented colleagues including Yasutake Tsuchida and Takeshi Shinohara. Together, they have worked on groundbreaking projects that further enhance Mazda's reputation for innovation in the automotive field.

Conclusion

Ryuji Kumagai stands as a testament to the power of innovation in shaping the future of transportation. His substantial contributions in the form of patents and collaborative efforts have left a lasting impact on the automotive industry, solidifying his status as a notable inventor in Japan and beyond.

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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