Ibaraki, Japan

Sanpei Usui

This inventor holds 1 USPTO granted patent. Top assignee: Hitachi, Ltd.. Active years: 1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sanpei Usui. Retrieved from https://idiyas.com/inventor/sanpei-usui

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 8(Granted Patents)


Company Filing History:


Years Active: 1985

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1 patent (USPTO):Explore Patents

Title: Sanpei Usui: Innovator in Vapor Generation Technology

Introduction

Sanpei Usui is a notable inventor based in Ibaraki, Japan. He has made significant contributions to the field of vapor generation technology. His innovative designs have the potential to enhance the efficiency of absorption-type water coolers and heaters.

Latest Patents

Sanpei Usui holds a patent for a vapor generator. This device features a burner section and a boiler section, designed to optimize heat transfer. The boiler section consists of an outer casing and an inner casing, with multiple solution tubes attached to the inner surfaces. These tubes are strategically arranged to ensure effective communication with the medium to be heated. The design includes fins that enhance heat transfer from the combustion gas to the medium, thereby improving overall efficiency.

Career Highlights

Usui is associated with Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to focus on developing advanced vapor generation systems. His contributions have been instrumental in pushing the boundaries of current technologies.

Collaborations

Throughout his career, Sanpei Usui has collaborated with esteemed colleagues such as Akira Nishiguchi and Tomihisa Oouchi. These collaborations have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Sanpei Usui's work in vapor generation technology exemplifies the spirit of innovation. His patent and contributions to Hitachi, Ltd. highlight his commitment to advancing technology in practical applications. His efforts continue to influence the industry and pave the way for future 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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