Hitachi, Japan

Keizo Ishida

This inventor holds 2 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Machinery and Engineering, Ltd.. Active years: 1986-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keizo Ishida. Retrieved from https://idiyas.com/inventor/keizo-ishida-rlidajeg

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 = 6.9

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 1986-1993

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2 patents (USPTO):Explore Patents

Title: Keizo Ishida – Innovator in Heat Exchange Technology

Introduction

Keizo Ishida is a notable inventor from Hitachi, Japan, recognized for his contributions to heat exchange technology. With a total of two patents to his name, Ishida has developed innovative solutions that address critical challenges in cooling systems.

Latest Patents

Among Ishida's latest inventions is the "Apparatus for Collecting Cleaning Bodies for Tubular Heat Exchanger." This apparatus enhances the efficiency of collecting cleaning bodies in tubular heat exchangers by effectively managing foreign matter, such as falling tools, in cooling water systems. It features a rectifying member that regulates the deflected flow of cooling water, ensuring that the cleaning bodies do not adhere to or stagnate within the collection lattices. Additionally, the design includes a guide member to trap larger articles while allowing only the cleaning bodies to pass through, and a discharge pipe that minimizes clogging from foreign materials.

Another significant patent is the "Condenser for a Steam Turbine," which expels oxygen-containing gas from the condensate passage using scavenging steam. The clever arrangement of the scavenging gas, which flows counter to the condensate, effectively removes harmful gases, improving the overall efficiency of steam turbines.

Career Highlights

Ishida has made significant contributions during his tenure at several prominent companies. He has been associated with Hitachi, Ltd. and Hitachi Machinery and Engineering, Ltd., where he utilized his expertise in heat exchange systems to develop groundbreaking inventions that have likely enhanced operational efficiencies.

Collaborations

Throughout his career, Keizo Ishida has collaborated with fellow inventors and engineers, including Yoshikuni Ohshima and Toyoyuki Mukaidani. These partnerships have undoubtedly fostered innovative thinking and led to the successful development of his patented technologies.

Conclusion

In summary, Keizo Ishida stands out as a prominent inventor in the field of heat exchange technology. His innovative patents exemplify his commitment to enhancing system efficiencies and resolving practical challenges within the industry. As technology continues to evolve, Ishida's contributions will likely inspire future developments in this critical area.

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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