Hitachi, Japan

Toshihiko Higashi

This inventor holds 6 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1978-1987.

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

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


% Patents Active = 100.0

Average Co-Inventor Count = 4.9

ph-index = 5

Forward Citations = 143(Granted Patents)


Location History:

  • Ibaraki, JP (1978)
  • Hitachi, JP (1980 - 1987)

Company Filing History:


Years Active: 1978-1987

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6 patents (USPTO):Explore Patents

Title: Innovations of Toshihiko Higashi

Introduction

Toshihiko Higashi is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of engineering, particularly in the development of systems that enhance the efficiency and control of steam turbines and combustion processes. With a total of 6 patents to his name, Higashi's work reflects a commitment to innovation and technological advancement.

Latest Patents

Higashi's latest patents include a steam turbine governor system and a combustion control method. The steam turbine governor system features two electronic sections that produce commands to control steam valve openings. This system ensures that the flow of steam into the turbine is regulated based on the difference between actual and target turbine speeds. The method also includes a mechanism for detecting abnormalities in the governor electronic sections through majority logic application.

The combustion control method focuses on regulating the amounts of fuel and air in a boiler's combustion zone. This method aims to meet regulatory standards for nitrogen oxides and unburned coal in ash. By performing trial operations, the method identifies optimal manipulated variables that stabilize combustion and maximize thermal efficiency.

Career Highlights

Higashi is currently employed at Hitachi, Ltd., where he continues to innovate and develop advanced engineering solutions. His work has had a profound impact on the efficiency of energy systems, contributing to more sustainable practices in the industry.

Collaborations

Throughout his career, Higashi has collaborated with esteemed colleagues such as Yoshio Sato and Nobuo Kurihara. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and expertise.

Conclusion

Toshihiko Higashi's contributions to engineering through his patents and collaborative efforts highlight his role as a key innovator in the field. His work not only advances technology but also promotes sustainability in energy systems.

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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