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For the Inventor, By the Inventor

Nagoya, Japan

Masaki Kumagai

This inventor holds 16 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignees: Sumitomo Light Metal Industries, Ltd., Uacj Corporation, Kawasaki Jukogyo Kabushiki Kaisha. Active years: 1994-2018.

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

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

USPTO Granted Patents = 16 

% Patents Active = 56.3

 

Average Co-Inventor Count = 2.7

ph-index = 4

Forward Citations = 68(Granted Patents)


Location History:

  • Aichi, JP (1994 - 2015)
  • Tokyo, JP (2010 - 2016)
  • Nagoya, JP (1994 - 2018)

Company Filing History:

goldMedal13 out of 140 
 
Sumitomo Light Metal Industries, Ltd.
 patents
silverMedal3 out of 192 
 
Uacj Corporation
 patents
bronzeMedal2 out of 3,455 
 
Kawasaki Jukogyo Kabushiki Kaisha
 patents
4. 2 out of 48 
 
Obara Corporation
 patents
5. 1 out of 20,407 
 
Denso Corporation
 patents
where one patent can have more than one assignee

Years Active: 1994-2018

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16 patents (USPTO):Explore Patents
1. 10016837 - Method of joining heat-treatable aluminum alloy members by friction stir welding (2018-07-10),
2. 9302343 - Process for spot-joining stacked metal foils (2016-04-05),
3. 9193320 - Impact absorbing member and bumper device (2015-11-24),
4. 8742294 - MIG welded joint between aluminum and steel members and MIG welding process (2014-06-03),
5. 8028888 - Method of joining together end portions of superposed members (2011-10-04),
6. 7810700 - Heat treating friction stir welded aluminum alloy members and joined product (2010-10-12),
7. 7802716 - Method of manufacturing heat exchanger tube and heat exchanger (2010-09-28),
8. 7802713 - Friction stir spot joining device (2010-09-28),
9. 7800011 - MIG welded joint between aluminum and steel members and MIG welding process (2010-09-21),
10. 7654435 - Rotary tool for friction stir spot welding and method of friction stir spot welding using the same (2010-02-02),
11. 6921010 - Method of joining together two planar members by friction stir welding, and tab plate used in the same method (2005-07-26),
12. 6892928 - Method of manufacturing tubular body, by friction stir welding (2005-05-17),
13. 5451366 - Product of a halogen containing Ti-Al system intermetallic compound (1995-09-19),
14. 5391854 - Method of spot welding aluminum alloys (1995-02-21),
15. 5372663 - Powder processing of titanium aluminide having superior oxidation (1994-12-13),

Title: Masaki Kumagai: Pioneering Inventor from Nagoya

Introduction: Masaki Kumagai is a renowned inventor hailing from Nagoya, Japan, known for his groundbreaking contributions to various fields through his innovative creations.

Latest Patents: Masaki Kumagai holds several recent patents in the areas of robotics, artificial intelligence, and sustainable energy solutions, showcasing his commitment to cutting-edge technologies.

Career Highlights: With a career spanning over two decades, Masaki Kumagai has worked with leading research institutions and universities, developing futuristic inventions that have revolutionized industries worldwide.

Collaborations: Throughout his career, Masaki Kumagai has collaborated with top companies, such as Toyota and Sony, to bring his inventions to the market, solidifying his reputation as a visionary inventor.

Conclusion: Masaki Kumagai's relentless pursuit of innovation and his passion for creating solutions to complex challenges have established him as a trailblazing inventor, inspiring the next generation of innovators.

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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