Tokyo, Japan

Yoshitsugu Sawa

This inventor holds 25 USPTO granted patents and 3 published patent applications and 3 EPO patents, primarily in Rail Detection Technology. Top assignees: Mitsubishi Electric Corporation, Mitsubishi Electric Cornoration, Mitsubishi Electric Corpotation. Active years: 2010-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshitsugu Sawa. Retrieved from https://idiyas.com/inventor/yoshitsugu-sawa

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

USPTO Granted Patents = 25 

% Patents Active = 52.0

 

Average Co-Inventor Count = 5.1

ph-index = 4

Forward Citations = 40(Granted Patents)


Location History:

  • Chiyoda-ku, JP (2020 - 2023)
  • Tokyo, JP (2010 - 2024)

Company Filing History:


Years Active: 2010-2025

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Areas of Expertise:
Additive Manufacturing
Rail Detection
Obstacle Detection
Temperature Detection
Parking Assistance
Satellite Positioning
Power Line Communication
Vehicle Communication
Navigation Apparatus
Remote Control System
Travel Pattern Generation
Access-Level Control
25 patents (USPTO):Explore Patents

Title: Innovations by Yoshitsugu Sawa in Railway Technology

Introduction

Yoshitsugu Sawa, an esteemed inventor based in Tokyo, Japan, has made significant contributions to the field of railway technology, holding 24 patents to his name. His inventive spirit is reflected in his latest advancements that focus on enhancing rail safety and operational efficiency.

Latest Patents

Among Yoshitsugu Sawa's recent patents are groundbreaking devices aimed at improving railway safety. The **Rail Breakage Detection Device** is designed to detect any breakage in the rail system. This device incorporates a first core part connected to an impedance bond that electrically connects two rails. It uses coils to generate electromotive forces based on current variations in the cables and employs a CPU to assess the integrity of the rails.

Another notable invention is the **Obstacle Detection Device and Method**, which is crucial for train safety. This device utilizes a sensor to monitor the train's surroundings and create a range image. It integrates map information to correct the train's position accurately, while also determining monitoring conditions to proactively identify potential obstacles on the track.

Career Highlights

Yoshitsugu Sawa has built a reputable career, contributing his expertise in prominent organizations such as Mitsubishi Electric Corporation and Mitsubishi Electric Research Laboratories, Inc. His work has consistently focused on applying innovative technologies to enhance the safety and reliability of rail transportation.

Collaborations

Throughout his career, Sawa has collaborated with other talented individuals in the field, including Wataru Tsujita and Yukio Goto. These collaborations have played a pivotal role in the development of cutting-edge technologies that continue to influence railway systems.

Conclusion

Yoshitsugu Sawa's impressive portfolio of 24 patents showcases his commitment to innovation in railway technology. His contributions not only improve rail system safety but also pave the way for more efficient and reliable transportation networks. As the industry continues to evolve, Sawa's inventions will undoubtedly leave a lasting impact on the future of rail travel.

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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