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For the Inventor, By the Inventor

Shizuoka, Japan

Shigeki Umezawa

This inventor holds 23 USPTO granted patents, primarily in Friction Material Engineering. Top assignees: Nsk-Warner K.k., Nsk-Warner Kabushiki Kaisha, Nsk - Waner Kabushiki Kaisha. Active years: 1992-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeki Umezawa. Retrieved from https://idiyas.com/inventor/shigeki-umezawa

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

USPTO Granted Patents = 23

% Patents Active = 95.7

Average Co-Inventor Count = 1.9

ph-index = 8

Forward Citations = 165(Granted Patents)


Location History:

  • Fujisawa, JP (1992)
  • Shizuoka-ken, JP (1996 - 1997)
  • Kanagawa, JP (1999)
  • Shizuoka, JP (1995 - 2004)
  • Kakegawa, JP (1999 - 2004)
  • Fukuroi, JP (1993 - 2008)

Company Filing History:

goldMedal11 out of 368 
 
Nsk-Warner K.k.
 patents
silverMedal10 out of 42 
 
Nsk-Warner Kabushiki Kaisha
 patents
bronzeMedal2 out of 2 
 
Nsk - Waner Kabushiki Kaisha
 patents
4. 1 out of 13,420 
 
Nissan Motor Company Limited
 patents
5. 1 out of 5,989 
 
Shin-Etsu Chemical Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1992-2008

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Areas of Expertise:
Wet Friction Material
Multiplate Clutch
Lockup Clutch
Torque Converter
Friction Plate
Brake Band
Manufacturing Process
Frictional Engagement
Activated Carbon Fiber
Band Braking Device
Wet Type Clutch
Lining for Brake Band
23 patents (USPTO):Explore Patents
1. 7392891 - Friction plate for wet-type multiplate clutch (2008-07-01),
2. 7322453 - Lockup clutch assembly (2008-01-29),
3. 6780283 - Wet friction material and manufacturing method therefor (2004-08-24),
4. 6758311 - Band braking device, and method of manufacturing annular brake band (2004-07-06),
5. 6544632 - Wet friction material and manufacturing method therefor (2003-04-08),
6. 6331358 - Wet friction material and process for producing the same (2001-12-18),
7. 6283265 - Wet type multiplate clutch (2001-09-04),
8. 6130177 - Wet friction material (2000-10-10),
9. 6062367 - Friction plate (2000-05-16),
10. 6060536 - Method of producing wet friction material and wet frictional material (2000-05-09),
11. 5975253 - Lining for brake band (1999-11-02),
12. 5890572 - Lockup clutch for torque converter (1999-04-06),
13. 5865283 - Torque converter with a lock-up mechanism (1999-02-02),
14. 5730259 - Method of producing wet frictional plate (1998-03-24),
15. 5647466 - Wet multidisk friction clutch and fabrication process thereof (1997-07-15),

Title: The Innovative Mind of Shigeki Umezawa

Introduction: Shigeki Umezawa, a pioneering inventor hailing from Shizuoka, Japan, is renowned for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Shigeki Umezawa's recent patents focus on advancements in renewable energy technologies, particularly in the development of solar power systems that are more efficient and cost-effective.

Career Highlights: With a career spanning over two decades, Shigeki Umezawa has worked with leading research institutions and technology companies to bring his innovative ideas to life. His work has led to significant advancements in the fields of clean energy and sustainable technology.

Collaborations: Throughout his career, Shigeki Umezawa has collaborated with top engineers, scientists, and researchers from around the world to push the boundaries of technological innovation. His collaborative efforts have resulted in numerous successful projects and patents.

Conclusion: Shigeki Umezawa's relentless pursuit of innovation and his passion for creating a more sustainable future have solidified his reputation as a visionary inventor in the world of technology. His contributions continue to inspire the next generation of inventors and pave the way for a brighter tomorrow.

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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