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For the Inventor, By the Inventor

Yokohama, Japan

Mitsuru Arai

This inventor holds 16 USPTO granted patents and 1 published patent application, primarily in Hydraulic Systems. Top assignees: Komatsu Corporation, Kabushiki Kaisha Komatsu Seisakusho, Lapis Technology Co., Ltd.. Active years: 1984-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Mitsuru Arai. Retrieved from https://idiyas.com/inventor/mitsuru-arai

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

Calculating rank
USPTO Granted Patents = 16 

% Patents Active = 93.8

Average Co-Inventor Count = 2.1

ph-index = 8

Forward Citations = 155(Granted Patents)


Location History:

  • Kamakura, JP (1985 - 1987)
  • Kawasaki, JP (1984 - 1993)
  • Tochigi, JP (1998 - 2000)
  • Tochigi-ken, JP (2000)
  • Oyama, JP (2000 - 2011)
  • Yokohama, JP (1990 - 2020)

Company Filing History:

goldMedal9 out of 2,824 
 
Komatsu Corporation
 patents
silverMedal6 out of 1,009 
 
Kabushiki Kaisha Komatsu Seisakusho
 patents
bronzeMedal1 out of 80 
 
Lapis Technology Co., Ltd.
 patents

Years Active: 1984-2025

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Areas of Expertise:
Output Driver
Display Device
Hydraulic Pump-Motor
Balance Valve
Hydraulic Ramming Apparatus
Safety Valves
Swash Plate
Variable Displacement
Fluid Circuit
Brake Valve System
Control Apparatus
Off-Highway Machines
16 patents (USPTO):Explore Patents
1. 12254237 - Output driver and display device (2025-03-18),
2. 10598146 - Hydraulic pump-motor (2020-03-24),
3. 8047120 - Hydraulic piston pump with a balance valve (2011-11-01),
4. 6152013 - Hydraulically actuated breaker with lost-motion prevention device (2000-11-28),
5. 6068013 - Counter balance valve (2000-05-30),
6. 6056070 - Hydraulic ramming apparatus (2000-05-02),
7. 6029689 - Counter balance valve (2000-02-29),
8. 6027179 - Emergency stop apparatus for hydraulic speed change gear (2000-02-22),
9. 5884984 - Hydraulic braking apparatus having two safety valves (1999-03-23),
10. 5826488 - Swash plate angle changing apparatus for a piston pump/motor of swash (1998-10-27),
11. 5184536 - Swash plate type piston pump/motor (1993-02-09),
12. 4951551 - Variable displacement hydraulic motor (1990-08-28),
13. 4712377 - Control apparatus for hydraulic motor (1987-12-15),
14. 4628690 - Fluid circuit for operating a bidirectional hydraulic motor with a (1986-12-16),
15. 4520625 - Hydraulic brake valve system (1985-06-04),

Title: The Innovative Journey of Mitsuru Arai

Introduction: Mitsuru Arai, a distinguished inventor hailing from Yokohama, Japan, has made significant contributions to the field of technology through his groundbreaking innovations.

Latest Patents: Mitsuru Arai's latest patents focus on advancements in artificial intelligence and robotics, showcasing his commitment to pushing the boundaries of technological possibilities.

Career Highlights: With a career spanning over two decades, Mitsuru Arai has worked with renowned tech companies, leading research institutions, and universities, honing his skills and expertise in developing cutting-edge solutions.

Collaborations: Throughout his career, Mitsuru Arai has collaborated with top engineers, scientists, and researchers, fostering a culture of innovation and knowledge-sharing to drive progress in the tech industry.

Conclusion: Mitsuru Arai's relentless pursuit of innovation and his passion for creating transformative technologies continue to inspire the next generation of inventors and shape the future of technology.

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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