Mizuya Matsufuji

This inventor holds 25 USPTO granted patents, primarily in Vehicle Transmission Systems. Top assignees: Kanzaki Kokyukoki Mfg. Co., Ltd., Jinmyung Powertech Co., Ltd., Yammar Co., Ltd.. Active years: 1995-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Mizuya Matsufuji. Retrieved from https://idiyas.com/inventor/mizuya-matsufuji

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

Calculating rank

USPTO Granted Patents = 25

% Patents Active = 76.0

Average Co-Inventor Count = 1.2

ph-index = 10

Forward Citations = 252(Granted Patents)

Location History:

Amagasaki, JP (1999 - 2001)
Sanda, JP (1995 - 2003)
Amagaski, JP (2004)
Hyogo, JP (2002 - 2006)

Company Filing History:

21 out of 541

Kanzaki Kokyukoki Mfg. Co., Ltd.

patents

1 out of 1

Jinmyung Powertech Co., Ltd.

4. 2 out of 834,601

Other

patents

Years Active: 1995-2026

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Areas of Expertise:

Transmission

Hydraulic Clutch

Speed Change Control

Working Vehicles

Four-Wheel Drive

Power Take-Off

Oil Supply System

Axle Driving

25 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12539754 - Transmission for work vehicle (2026-02-03),

2. 7124867 - Traveling transmission of working vehicle (2006-10-24),

3. 6786317 - Hydraulic clutch assembly (2004-09-07),

4. 6634990 - Method of controlling hydraulic pressure in speed change mechanism having hydraulic clutches (2003-10-21),

5. 6581744 - Transmission system in working vehicles (2003-06-24),

6. 6553759 - Transmission for a working vehicle (2003-04-29),

7. 6530290 - Speed change control device for tractors (2003-03-11),

8. 6491604 - Method of controlling hydraulic pressure in speed change mechanism having hydraulic clutch (2002-12-10),

9. 6487924 - Transmission assembly for working vehicles (2002-12-03),

10. 6364045 - Front wheel drive clutch for tractors (2002-04-02),

11. 6360623 - Transmission system in working vehicles (2002-03-26),

12. 6314827 - Transmission for a working vehicle (2001-11-13),

13. 6233931 - Transmission for a working vehicle (2001-05-22),

14. 6199653 - Four-wheel driven vehicle (2001-03-13),

15. 6164396 - Traveling operation device for a working vehicle (2000-12-26),

Title: **Mizuya Matsufuji: Innovator in Hydraulic Transmission Technologies**

Introduction

Mizuya Matsufuji, an accomplished inventor based in Sanda, Japan, holds an impressive portfolio of 24 patents. His innovative contributions primarily focus on advancements in hydraulic transmission technologies used in various working vehicles. Through his inventions, he has aimed to improve the efficiency and smooth operation of mechanical systems.

Latest Patents

Among his latest patents, the "Traveling Transmission of Working Vehicle" stands out. This invention features an auxiliary transmission that operates in conjunction with a main clutch, allowing for seamless power transmission during the disengagement of the main clutch. By integrating a high-low speed selector device with hydraulic-operated clutches, Matsufuji's design enables quicker speed change operations and enhances the overall smoothness of mechanical transmission.

Another notable invention is the "Hydraulic Clutch Assembly." This assembly consists of a spring-drive hydraulic clutch with various components that engage and disengage friction elements based on hydraulic pressure. Through this innovative approach, Matsufuji has developed a reliable solution that optimizes the functionality of hydraulic clutches in vehicle transmissions.

Career Highlights

Matsufuji's career includes significant contributions while working at Kanzaki Kokyukoki Mfg. Co., Ltd. His expertise in designing hydraulic systems has established him as a key player in the field of vehicle transmission technologies. His inventions reflect his deep understanding of mechanical engineering and commitment to innovation.

Collaborations

Throughout his career, Matsufuji has collaborated with notable engineers such as Takumi Fujita and Katsunori Katou. These partnerships have fostered an exchange of ideas and knowledge, further driving innovations in hydraulic systems and enhancing the efficiency of their inventions.

Conclusion

Mizuya Matsufuji's dedication to innovation and his impressive collection of patents underscore his impact on hydraulic transmission technologies. His work continues to inspire advancements that improve the performance and reliability of working vehicles. As the landscape of engineering evolves, Matsufuji's contributions will undoubtedly leave a lasting mark in the 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]