Yokohama, Japan

Keishichi Nanba

This inventor holds 2 USPTO granted patents. Top assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Tokyo Heat Treating Company, Ltd.. Active years: 1992-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keishichi Nanba. Retrieved from https://idiyas.com/inventor/keishichi-nanba

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 = 5.0

ph-index = 2

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 1992-1993

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2 patents (USPTO):Explore Patents

Title: Keishichi Nanba: Innovator in Gas-Carburizing Technology

Introduction

Keishichi Nanba is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of heat treatment technology, particularly through his innovative gas-carburizing processes and apparatuses. With a total of 2 patents to his name, Nanba's work has had a lasting impact on industrial practices.

Latest Patents

Nanba's latest patents focus on a gas-carburizing process and apparatus. The first patent describes a gas-carburizing process wherein an article is treated by feeding a hydrocarbon gas and an oxidative gas directly into an atmospheric heat treating furnace. This process is characterized by the feeding of CO₂ as a negative pressure dissolving means when the pressure within the furnace is negative. The second patent outlines a similar gas-carburizing apparatus, which includes a gas inlet for feeding hydrocarbon and oxidative gases, along with a CO₂ feeding part designed to eliminate negative pressure within the furnace.

Career Highlights

Throughout his career, Keishichi Nanba has worked with prominent companies in the industry. He has been associated with Tokyo Heat Treating Company, Ltd. and Mitsubishi Jidosha Kogyo Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in heat treatment technologies.

Collaborations

Nanba has collaborated with several professionals in his field, including Yoshihiko Kitayama and Fukitaka Abukawa. These collaborations have likely enriched his work and led to further advancements in gas-carburizing technology.

Conclusion

Keishichi Nanba's contributions to gas-carburizing processes and apparatuses highlight his innovative spirit and dedication to advancing industrial technology. His patents and career achievements reflect his significant role in the field of heat treatment.

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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