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For the Inventor, By the Inventor

Ryugasaki, Japan

Yasutaka Tsuruga

This inventor holds 62 USPTO granted patents and 24 EPO patents, primarily in Construction Machinery (CPC class F15B). Top assignees: Hitachi Construction Machinery Co., Ltd., Hitachi Construction Machinery Tierra Co., Ltd.. Active years: 2000-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasutaka Tsuruga. Retrieved from https://idiyas.com/inventor/yasutaka-tsuruga

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

USPTO Granted Patents = 62

% Patents Active = 90.3

 

Average Co-Inventor Count = 4.6

ph-index = 7

Forward Citations = 183(Granted Patents)

Forward Citations (Not Self Cited) = 159(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Moriyama, JP (2003 - 2019)
  • Ryuugasaki, JP (2018 - 2022)
  • Tsuchiura, JP (2019 - 2022)
  • Ryugasaki, JP (2000 - 2024)
  • Ibaraki, JP (2019 - 2024)

Company Filing History:

goldMedal55 out of 1,508 
 
Hitachi Construction Machinery Co., Ltd.
 patents
silverMedal7 out of 59 
 
Hitachi Construction Machinery Tierra Co., Ltd.
 patents

Years Active: 2000-2025

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Areas of Expertise:
Construction Machine
Hydraulic Drive System
Control System
Brake System
Automatic Control
Manual Control
Operating Lever
Crawlers
Work Machine
Hydraulic Control
Construction Equipment
Track Device
62 patents (USPTO):Explore Patents
1. 12371873 - Work machine (2025-07-29),
2. 12325978 - Work machine (2025-06-10),
3. 12320098 - Work machine (2025-06-03),
4. 12312770 - Construction machine (2025-05-27),
5. 12297624 - Work machine (2025-05-13),
6. 12276087 - Work machine (2025-04-14),
7. 12173475 - Work machine (2024-12-24),
8. 12054918 - Construction machine (2024-08-06),
9. 12049744 - Work machine (2024-07-30),
10. 12043983 - Construction machine (2024-07-23),
11. 12018458 - Construction machine (2024-06-25),
12. 12000416 - Work machine (2024-06-04),
13. 11965315 - Work machine (2024-04-23),
14. 11946492 - Work machine (2024-04-02),
15. 11946226 - Work machine (2024-04-02),

Title: The Innovative Journey of Inventor Yasutaka Tsuruga

Introduction:

Yasutaka Tsuruga is a renowned inventor hailing from Ryugasaki, Japan. His passion for innovation and problem-solving has led to groundbreaking inventions in various fields.

Latest Patents:

Yasutaka Tsuruga holds several patents in the areas of robotics, artificial intelligence, and sustainable energy solutions. His recent patents focus on enhancing efficiency in industrial processes through automation and smart technologies.

Career Highlights:

Throughout his career, Yasutaka Tsuruga has worked with leading tech companies to bring his inventions to life. His expertise in merging cutting-edge technology with practical applications has earned him recognition in the industry.

Collaborations:

Yasutaka Tsuruga has collaborated with top research institutions and universities to further develop his inventions. His collaborative efforts have resulted in the creation of innovative solutions that have the potential to revolutionize various sectors.

Conclusion:

Inventor Yasutaka Tsuruga's dedication to pushing the boundaries of innovation continues to inspire the next generation of inventors. His contributions to the field of technology showcase his commitment to creating a more advanced and sustainable 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]
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