Nagareyama, Japan

Ryoji Iwanaga

This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Dipsol Chemicals Co., Ltd.. Active years: 2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryoji Iwanaga. Retrieved from https://idiyas.com/inventor/ryoji-iwanaga

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

Calculating rank
USPTO Granted Patents = 1 

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 1


Company Filing History:


Years Active: 2026

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1 patent (USPTO):Explore Patents

Title: Ryoji Iwanaga: Inventor in Chemical Treatment Technology.

Introduction

Ryoji Iwanaga is an inventor associated with Nagareyama, Japan, and Dipsol Chemicals Co., Ltd. His patent work focuses on chemical treatment technology for metal materials.

Latest Patents

Iwanaga is named on 1 patent: “Chemical Treatment Liquid and Method for Chemical Treatment of Target Metal Material.” The invention describes a treatment liquid containing a water-soluble titanium complex ion, a water-soluble vanadium-containing ion, and fluoride ions at a concentration of at least 1.2 g/L. Its stated objective is to form a coating with improved corrosion resistance.

Career Highlights

The available information connects Iwanaga’s invention activity with Dipsol Chemicals Co., Ltd., a company working in chemical treatment solutions. His patent addresses the formulation of a treatment liquid and its use on target metal materials.

Collaborations

The patent information identifies Dipsol Chemicals Co., Ltd. in connection with Iwanaga’s work. No additional collaborators are specified in the provided details.

Conclusion

Ryoji Iwanaga’s documented patent contribution concerns a chemical treatment liquid designed to help produce corrosion-resistant coatings on metal materials.

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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