Shimizu, Japan

Keij Tanaka

This inventor holds 1 USPTO granted patent. Top assignee: Hitachi, Ltd.. Active years: 1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keij Tanaka. Retrieved from https://idiyas.com/inventor/keij-tanaka

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 = 6.0

ph-index = 1

Forward Citations = 30(Granted Patents)


Company Filing History:


Years Active: 1994

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1 patent (USPTO):Explore Patents

Title: Keij Tanaka: Innovator in Multi-Airconditioning Technology

Introduction

Keij Tanaka is a notable inventor based in Shimizu, Japan. He has made significant contributions to the field of air conditioning technology, particularly with his innovative designs that enhance efficiency and functionality.

Latest Patents

Tanaka holds a patent for a multi-airconditioner system. This invention includes multiple outdoor units and at least one indoor unit, with refrigerant conduits connecting them in a streamlined manner. The design allows for both room-cooling and room-heating operations, utilizing a common liquefied refrigerant conduit and gasified refrigerant conduits. This innovative approach enables simultaneous operation of indoor units for different temperature requirements, showcasing Tanaka's ingenuity in HVAC technology.

Career Highlights

Keij Tanaka is associated with Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to develop and refine his inventions, contributing to advancements in air conditioning systems.

Collaborations

Tanaka has collaborated with notable coworkers, including Tadayuki Urushihata and Fumio Harada. Their combined expertise has likely played a role in the successful development of Tanaka's innovative air conditioning solutions.

Conclusion

Keij Tanaka's contributions to multi-airconditioning technology reflect his commitment to innovation and efficiency in climate control systems. His patent demonstrates a significant advancement in the field, showcasing the potential for improved comfort in various environments.

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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