Tokyo, Japan

Manabu Kumagai

This inventor holds 2 USPTO granted patents, plus 1 CIPO patent and 1 EPO patent. Top assignees: Nihon Parkerizing Co., Ltd., Nippon Steel Corporation. Active years: 2012-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Manabu Kumagai. Retrieved from https://idiyas.com/inventor/manabu-kumagai

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


% Patents Active = 50.0


 

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2012-2019

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2 patents (USPTO):Explore Patents

Title: Manabu Kumagai: Innovator in Metalworking Lubricants

Introduction

Manabu Kumagai is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of metalworking lubricants, holding a total of 2 patents. His innovative work focuses on enhancing the performance and efficiency of lubricants used in various industrial applications.

Latest Patents

Kumagai's latest patents include a water-based lubricant designed for the plastic working of metallic materials. This lubricant is formulated by adding a polymer or a salt containing a carboxylic acid, an oxoacid of tungsten, silicon, or phosphorus, a hydroxide of an alkali metal, and a lubricating component. The solid content weight ratio is carefully balanced to ensure optimal performance. Another significant patent involves an aqueous treating solution for Sn-based plated steel sheets, which excels in corrosion resistance and paint adhesion. This solution comprises an organic material, a water-soluble chromium compound, and water-dispersible silica, ensuring that it meets environmental safety standards by avoiding hexavalent chromium.

Career Highlights

Throughout his career, Kumagai has worked with prominent companies such as Nippon Steel Corporation and Nihon Parkerizing Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in the field of metalworking.

Collaborations

Kumagai has collaborated with esteemed colleagues, including Shinichi Yamaguchi and Masao Kurosaki. Their combined expertise has contributed to the advancement of technologies in their respective fields.

Conclusion

Manabu Kumagai's contributions to the field of metalworking lubricants demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of material science and a dedication to improving industrial processes.

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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