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Ryuzo Sakakiyama

USPTO Granted Patents = 53

Average Co-Inventor Count = 1.4

ph-index = 12

Forward Citations = 446(Granted Patents)

Forward Citations (Not Self Cited) = 408(Dec 10, 2025)

Inventors with similar research interests:

Company Filing History:

54 out of 2,208

Fuji Jukogyo Kabushiki Kaisha

Van Doorne's Transmissie B.v.

where one patent can have more than one assignee

Years Active: 1983-2004

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Areas of Expertise:

Driving Force Distribution

Power Distribution Control

Four-Wheel Drive Control

Continuously Variable Transmission

Automatic Transmission Failure Detection

Electromagnetic Clutch Control

Clutch Torque Regulation

Hydraulic Control Systems

Power Transmission Systems

Idle Speed Regulation

Automotive Control Systems

Electromagnetic Clutch Engagement

53 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6698541 - Driving force distributing apparatus for a vehicle (2004-03-02),

2. 6634451 - Power distribution control system for a vehicle (2003-10-21),

3. 6604595 - Driving force distributing apparatus for a vehicle (2003-08-12),

4. 6564139 - Apparatus and method for controlling a four-wheel drive vehicle (2003-05-13),

5. 5890991 - Control system and method of continuously variable transmission (1999-04-06),

6. 5655408 - Failure detecting system and method for automatic transmission (1997-08-12),

7. 5601510 - Failure detecting system and method for automatic transmission (1997-02-11),

8. 5591101 - Failure detecting system and method for automatic transmission (1997-01-07),

9. 5573475 - Failure detecting system and method for automatic transmission (1996-11-12),

10. 5486147 - Failure detecting system and method for automatic transmission (1996-01-23),

11. 4913270 - Control system for an automatic transmission of a motor vehicle with an (1990-04-03),

12. 4911275 - System for controlling a clutch for a vehicle (1990-03-27),

13. 4848544 - Control system for a clutch for a vehicle (1989-07-18),

14. 4848528 - Control system for an electromagnetic clutch for a vehicle (1989-07-18),

15. 4836322 - Power transmission system for a four-wheel drive vehicle (1989-06-06),

Title: The Innovative Journey of Ryuzo Sakakiyama

Introduction: Ryuzo Sakakiyama is a pioneering inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to the field of technology and innovation.

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

Career Highlights: With a career spanning over two decades, Sakakiyama has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant technological breakthroughs. His innovative spirit and dedication to his craft have earned him recognition as a trailblazer in the industry.

Collaborations: Throughout his career, Ryuzo Sakakiyama has collaborated with top research institutions and universities in Japan, fostering a culture of innovation and knowledge-sharing. His collaborative efforts have resulted in the development of cutting-edge technologies that have the potential to shape the future of various industries.

Conclusion: Ryuzo Sakakiyama's relentless pursuit of innovation and his passion for creating technologies that make a difference have solidified his position as a visionary inventor in the realm of technology. His contributions continue to inspire the next generation of inventors and innovators worldwide.

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