logo

For the Inventor, By the Inventor

Tokyo, Japan

Toshiyuki Sakai

This inventor holds 36 USPTO granted patents and 4 published patent applications and 8 EPO patents, primarily in Electric Circuit Breakers. Top assignees: Daicel Corporation, Dai Nippon Printing Co., Ltd., Fujitsu Corporation. Active years: 1988-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiyuki Sakai. Retrieved from https://idiyas.com/inventor/toshiyuki-sakai

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

USPTO Granted Patents = 36 

% Patents Active = 83.3

 

Average Co-Inventor Count = 2.1

ph-index = 6

Forward Citations = 270(Granted Patents)


Location History:

  • Kawasaki, JP (1988 - 2008)
  • Tsukubamirai, JP (2019)
  • Tatsuno, JP (2017 - 2020)
  • Tokyo, JP (1990 - 2023)
  • Tsukuba, JP (2024)

Company Filing History:

goldMedal13 out of 696 
 
Daicel Corporation
 patents
silverMedal8 out of 3,208 
 
Dai Nippon Printing Co., Ltd.
 patents
bronzeMedal8 out of 39,378 
 
Fujitsu Corporation
 patents
4. 5 out of 1,664 
 
Disco Corporation
 patents
5. 2 out of 36 
 
Hitachi Systems, Ltd.
 patents
6. 2 out of 405 
 
Showa Denko Kabushiki Kaisha
 patents
7. 1 out of 42,740 
 
Hitachi, Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1988-2025

Loading Chart...
Loading Chart...
Areas of Expertise:
Electric Circuit Breaker
Semiconductor Light-Emitting Device
Wafer Processing
Resin Composition
Optical Network Unit
Igniter Assembly
Highly Conductive Polymer
Projectile Assembly
Communication System
Delay Adjustment Unit
Frequency Comparator
Alarm Termination Apparatus
36 patents (USPTO):Explore Patents
1. 12444561 - Electric circuit breaker device that extinguishes an arc generated when conductor portion is cut (2025-10-14),
2. 12275217 - Decorative sheet and decorative material using same (2025-04-14),
3. 12187879 - Cosmetic sheet and cosmetic material using same, and resin composition for surface protection layer (2025-01-07),
4. 11958994 - Sheet, ornamental material, and resin composition (2024-04-16),
5. 11756758 - Electric circuit breaker device (2023-09-12),
6. 11724352 - Wafer processing method (2023-08-15),
7. 11694866 - Electric circuit breaker device (2023-07-04),
8. 11673229 - Processing apparatus (2023-06-13),
9. 11534890 - SiC ingot forming method (2022-12-27),
10. 11373823 - Electric circuit breaker device (2022-06-28),
11. 11004635 - Electric circuit breaker device (2021-05-11),
12. 10971318 - Electric circuit breaker device (2021-04-06),
13. 10910181 - Projectile assembly and electric circuit breaker device (2021-02-02),
14. 10832882 - Electric circuit breaker device (2020-11-10),
15. 10685799 - Electric circuit breaker device (2020-06-16),

Title: The Innovative Journey of Toshiyuki Sakai

Introduction: Toshiyuki Sakai, a visionary inventor hailing from Tokyo, Japan, has made significant contributions to the field of technology with his groundbreaking inventions and patents.

Latest Patents: Toshiyuki Sakai's latest patents include a cutting-edge AI-powered robotics system for industrial automation and a revolutionary sustainable energy solution utilizing solar power technology.

Career Highlights: With a career spanning over two decades, Toshiyuki Sakai has established himself as a pioneer in the tech industry. He has led research teams in developing state-of-the-art products that have redefined the way we interact with technology on a daily basis.

Collaborations: Throughout his career, Toshiyuki Sakai has collaborated with leading tech companies, research institutions, and universities to drive innovation forward. His collaborative efforts have resulted in the successful development and commercialization of several groundbreaking technologies.

Conclusion: Toshiyuki Sakai's relentless passion for innovation and his unwavering commitment to pushing the boundaries of technology have solidified his position as a trailblazer in the world of inventions. His contributions continue to inspire future generations of inventors to think outside the box and create a brighter, more technologically advanced future.

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]
Loading…