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For the Inventor, By the Inventor

Shizuoka, Japan

Tatsuro Sugiyama

This inventor holds 54 USPTO granted patents and 6 published patent applications and 7 EPO patents, primarily in Constant Velocity Joints (CPC class F16D). Top assignees: Ntn Corporation, Koito Manufacturing Company, Ltd., Other. Active years: 1996-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuro Sugiyama. Retrieved from https://idiyas.com/inventor/tatsuro-sugiyama

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

USPTO Granted Patents = 54 

% Patents Active = 77.8

 

Average Co-Inventor Count = 3.1

ph-index = 8

Forward Citations = 234(Granted Patents)

Forward Citations (Not Self Cited) = 208(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Haibara-gun, JP (1997)
  • Shizuoka-ken, JP (2002 - 2008)
  • Iwata, JP (2000 - 2015)
  • Shizuoka, JP (1996 - 2024)

Company Filing History:

goldMedal52 out of 2,496 
 
Ntn Corporation
 patents
silverMedal1 out of 2,310 
 
Koito Manufacturing Company, Ltd.
 patents
bronzeMedal1 out of 834,513 
Other
 patents

Years Active: 1996-2026

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Areas of Expertise:
Constant Velocity Universal Joint
Tripod Type Joint
Plunging Type Joint
Sliding Type Joint
Manufacturing Method
Outer Joint Member
Shaft Member
Inspection Device
Welding Method
Forging Technique
Tripod Kit
Fixed Type Joint
54 patents (USPTO):Explore Patents
1. 12692904 - Tripod type constant velocity universal joint (2026-07-28),
2. 12674491 - Plunging type constant velocity universal joint (2026-07-07),
3. 12460680 - Tripod type constant velocity universal joint (2025-11-04),
4. 12429095 - Plunging-type constant velocity universal joint (2025-09-30),
5. 12038050 - Tripod-type constant velocity universal joint (2024-07-16),
6. 11371564 - Plunging type constant velocity universal joint (2022-06-28),
7. 11073179 - Sliding-type constant velocity universal joint and method for manufacturing same (2021-07-27),
8. 10933462 - Method for forging shaft member of constant velocity universal joint (2021-03-02),
9. 10788078 - Outer joint member of constant velocity universal joint (2020-09-29),
10. 10761065 - Device for inspecting junction-type outer joint member of constant velocity universal joint (2020-09-01),
11. 10563700 - Tripod type constant velocity universal joint (2020-02-18),
12. 10539193 - Method for manufacturing outer joint member for constant-velocity universal joint and outer joint member (2020-01-21),
13. 10514070 - Method for manufacturing outer joint member for constant velocity universal joint, shaft member and outer joint member (2019-12-24),
14. 10478914 - Method for butt welding, butt welded joint, and outside joint member for constant velocity universal joint (2019-11-19),
15. 10352369 - Constant velocity universal joint outer joint member and manufacturing method for same (2019-07-16),

Title: The Innovative Journey of Tatsuro Sugiyama

Introduction:

Tatsuro Sugiyama, a pioneering inventor hailing from Shizuoka, Japan, has made significant contributions to the world of technology through his groundbreaking innovations and patents.

Latest Patents:

Sugiyama's latest patents include advancements in robotics, artificial intelligence, and sustainable energy solutions, showcasing his commitment to creating a more efficient and sustainable future.

Career Highlights:

With a career spanning over two decades, Sugiyama has established himself as a leading figure in the field of technology. His work has not only revolutionized industries but has also inspired a new generation of inventors to push the boundaries of what is possible.

Collaborations:

Throughout his career, Sugiyama has collaborated with top research institutions, universities, and leading tech companies to bring his inventions to life. His ability to work across disciplines and industries has led to the development of cutting-edge technologies with real-world applications.

Conclusion:

In conclusion, Tatsuro Sugiyama's innovative spirit and dedication to technological advancement have solidified his place as a visionary inventor. His impact on the world of technology will continue to be felt for years to come.

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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