Yuji Kurematsu

This inventor holds 75 USPTO granted patents and 11 published patent applications, primarily in Clutch Mechanisms (CPC class F16H). Top assignees: Tsubakimoto Chain Company, Tsubakimoto Chainco., Subakimoto Chain Co.. Active years: 2009-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yuji Kurematsu. Retrieved from https://idiyas.com/inventor/yuji-kurematsu

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

USPTO Granted Patents = 75 (Patent Applications = 11)

% Patents Active = 85.3

Average Co-Inventor Count = 2.1

ph-index = 6

Forward Citations = 150(Granted Patents)

Forward Citations (Not Self Cited) = 127(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Nakanoshima, JP (2015)
Osaka, JP (2009 - 2024)

Company Filing History:

72 out of 914

Tsubakimoto Chain Company

Years Active: 2009-2026

Loading Chart...

Areas of Expertise:

Positive Clutch

Cam Clutch

Selectable Clutch

Chain Drive Mechanism

Sprocket

Tensioner

Chain Guide

Tensioner Lever

Rotating Member

Transmission Mechanism

Relief Valve Unit

Chain Tensioner

75 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12687204 - Selectable clutch and disconnect mechanism (2026-07-21),

2. 12398765 - Positive clutch (2025-08-26),

3. 12305722 - Cam clutch (2025-05-20),

4. 12196276 - Selectable clutch (2025-01-14),

5. 12104663 - Positive clutch (2024-10-01),

6. 12055189 - Positive clutch (2024-08-06),

7. 11982324 - Cam clutch unit (2024-05-14),

8. 11913503 - Cam clutch (2024-02-27),

9. 11846329 - Cam clutch (2023-12-19),

10. 11767891 - Cam clutch unit (2023-09-26),

11. 11761496 - Cam clutch (2023-09-19),

12. 11585414 - Chain drive mechanism (2023-02-21),

13. 11499620 - Sprocket and drive mechanism (2022-11-15),

14. 11493120 - Sprocket and drive mechanism (2022-11-08),

15. 11493114 - Chain guide (2022-11-08),

Title: Yuji Kurematsu: Pioneering Inventor from Osaka

Introduction: Yuji Kurematsu is a renowned inventor hailing from Osaka, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Yuji Kurematsu holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous dedication to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Kurematsu has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant technological breakthroughs.

Collaborations: Throughout his career, Yuji Kurematsu has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge sharing.

Conclusion: Yuji Kurematsu's relentless pursuit of innovation and his passion for creating technology that makes a difference have solidified his position as a trailblazing inventor in the global tech industry.

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]

11 patents pending: