Tokyo, Japan

Toshihiko Matsuo

This inventor holds 4 USPTO granted patents and 1 EPO patent. Top assignees: Fuji Photo Film Company, Limited, Mitsubishi Heavy Industries Limited. Active years: 1993-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshihiko Matsuo. Retrieved from https://idiyas.com/inventor/toshihiko-matsuo-s0emy3xp

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

Calculating rank

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.8

ph-index = 2

Forward Citations = 51(Granted Patents)


Company Filing History:


Years Active: 1993-2021

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4 patents (USPTO):Explore Patents

Title: Inventor Toshihiko Matsuo: Pioneering Innovations in Sealing Technology

Introduction

Toshihiko Matsuo, an accomplished inventor based in Tokyo, Japan, has made significant contributions to the field of sealing technology. With a total of four patents to his name, his innovative designs have greatly influenced the efficiency and reliability of various machines.

Latest Patents

Matsuo's latest patents include two cutting-edge innovations: the multistage shaft sealing apparatus and the shaft sealing structure for reactor coolant pumps. The multistage shaft sealing apparatus comprises three sequential sealing units, each designed to enhance the fluid leakage prevention between a rotating shaft and its housing. The first sealing unit employs a non-contact-type sealing surface, while the second and third units utilize contact-type surfaces, complete with a purge water supply and discharge system to maintain optimal functionality.

The shaft sealing structure for reactor coolant pumps features an innovative seal ring with abutment portions and a support member that dynamically adjusts based on temperature fluctuations. This design ensures that the seal ring remains properly positioned during normal operation, providing protection against potential overheating scenarios.

Career Highlights

Throughout his career, Matsuo has garnered experience working with notable companies such as Fuji Photo Film Company, Limited and Mitsubishi Heavy Industries Limited. His professional journey has been marked by a commitment to advancing technology in industrial applications.

Collaborations

In his innovative endeavors, Matsuo has collaborated with fellow engineers and professionals, including Hiroshi Kuzumi and Yasuhiro Ikeda. Their collective expertise has contributed to the development of successful technologies that continue to impact the engineering sector positively.

Conclusion

Toshihiko Matsuo exemplifies the spirit of innovation through his inventive work in sealing technology. His patents reflect a deep understanding of engineering challenges and a dedication to providing solutions that enhance performance and safety in machinery. As he continues to push the boundaries of technology, Matsuo's contributions will likely inspire future generations of inventors.

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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