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For the Inventor, By the Inventor

Ibaraki, Japan

Masakazu Haga

This inventor holds 23 USPTO granted patents and 1 EPO patent, primarily in Construction Machinery. Top assignee: Hitachi Construction Machinery Co., Ltd.. Active years: 1987-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masakazu Haga. Retrieved from https://idiyas.com/inventor/masakazu-haga

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 = 100.0


Average Co-Inventor Count = 4.5

ph-index = 16

Forward Citations = 552(Granted Patents)


Location History:

  • Chiyoda, JP (1989)
  • Niihari, JP (1991)
  • Ibaraki, JP (1987 - 1999)
  • Niihara-gun, JP (1999)
  • Ibaraki-ken, JP (1997 - 2002)
  • Niihari-gun, JP (1998 - 2003)

Company Filing History:

goldMedal23 out of 1,508 
 
Hitachi Construction Machinery Co., Ltd.
 patents

Years Active: 1987-2003

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Areas of Expertise:
Construction Machine
Hydraulic Control
Excavation Systems
Area Limitation
Slope Excavation
Remote Control
Drive Control
Hydraulic Circuit
Control Panel
Locus Control
Interference Prevention
Prime Mover
23 patents (USPTO):Explore Patents
1. 6564480 - Working apparatus for construction machine (2003-05-20),
2. 6430490 - Hydraulic circuit control device of construction machinery (2002-08-06),
3. 6275757 - Device for controlling limited-area excavation with construction machine (2001-08-14),
4. 6169948 - Front control system, area setting method and control panel for construction machine (2001-01-02),
5. 6076029 - Slope excavation controller of hydraulic shovel, target slope setting (2000-06-13),
6. 5968104 - Front control system for construction machine (1999-10-19),
7. 5960378 - Excavation area setting system for area limiting excavation control in (1999-09-28),
8. 5957989 - Interference preventing system for construction machine (1999-09-28),
9. 5918527 - Locus control system for construction machines (1999-07-06),
10. 5887365 - Front control system for construction machine and oil temperature (1999-03-30),
11. 5835874 - Region limiting excavation control system for construction machine (1998-11-10),
12. 5822891 - Work area limitation control system for construction machine (1998-10-20),
13. 5752333 - Area limiting excavation control system for construction machines (1998-05-19),
14. 5735065 - Area limiting excavation control system for construction machine (1998-04-07),
15. 5701691 - Region limiting excavation control system for construction machine (1997-12-30),

Title: The Inventor Masakazu Haga

Introduction: Masakazu Haga is a renowned inventor hailing from Ibaraki-ken, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Masakazu Haga holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his diverse range of expertise and innovative spirit.

Career Highlights: With a career spanning over two decades, Masakazu Haga has worked with leading research institutions and tech companies, spearheading projects that have revolutionized industries and improved the quality of life for many.

Collaborations: Throughout his career, Masakazu Haga has collaborated with top engineers, scientists, and designers from around the world, fostering a culture of innovation and excellence in all his projects.

Conclusion: Masakazu Haga's relentless pursuit of innovation and his passion for creating solutions to complex problems have solidified his position as a visionary inventor in the global tech community.

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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