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For the Inventor, By the Inventor

Tokyo, Japan

Yasumasa Haruta

This inventor holds 7 USPTO granted patents and 2 EPO patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1991-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasumasa Haruta. Retrieved from https://idiyas.com/inventor/yasumasa-haruta

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

USPTO Granted Patents = 7

% Patents Active = 71.4

 

Average Co-Inventor Count = 2.4

ph-index = 4

Forward Citations = 64(Granted Patents)


Location History:

  • Inazawa, JP (1991)
  • Tokyo, JP (1999 - 2006)

Company Filing History:

goldMedal7 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents

Years Active: 1991-2006

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7 patents (USPTO):Explore Patents
1. 7104386 - Sloped part high-speed escalator (2006-09-12),
2. 6591959 - Escalator with high speed inclinded section (2003-07-15),
3. 6588573 - Escalator with high speed inclined section (2003-07-08),
4. 6334522 - Control apparatus for passenger conveyor and passenger detecting device (2002-01-01),
5. 6241071 - Tread unit of passenger conveyer and passenger conveyer system (2001-06-05),
6. 5992605 - Escalator system with wheel chair steps and an operating method therefor (1999-11-30),
7. 5062519 - Escalator system with convertible step unit (1991-11-05),

Title: **Innovative Contributions of Yasumasa Haruta in Escalator Technology**

Introduction

Yasumasa Haruta is a prominent inventor based in Tokyo, Japan, known for his impactful contributions to escalator technology. With a total of seven patents to his name, Haruta has focused on advancements that enhance the efficiency and safety of high-speed escalators.

Latest Patents

Among his latest innovations are two noteworthy patents. The first patent, titled "Sloped Part High-Speed Escalator," addresses the design of an auxiliary track in the speed-changing region for escalator steps. This invention optimizes step movement by determining the positional relationship between step link roller shafts and adjacent steps based on a step speed profile over time. The second patent, "Escalator with High-Speed Inclined Section," improves the design of escalators featuring high-speed inclined sections. It utilizes a coordinate system to define the riser position related to the tread, balancing speed change ratios and distances between adjacent steps effectively.

Career Highlights

Haruta's career is marked by his association with Mitsubishi Electric Corporation, where he has contributed significantly to the field of escalator technology. His inventive spirit and commitment to research have helped develop solutions that address modern transportation challenges in urban environments.

Collaborations

Throughout his career, Haruta has collaborated with talented colleagues, including Manabu Ogura and Takashi Yumura. These partnerships have not only fostered a culture of innovation but have also led to the successful development of patents that push the boundaries of current technology.

Conclusion

Yasumasa Haruta's inventions represent a blend of creativity and technical prowess in the escalator industry. His dedication to innovation is evident through his multiple patents, contributing to safer and more efficient transportation solutions. As such, Haruta continues to be a significant figure in the realm of engineering and technological advancements.

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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