Amagasaki, Japan

Hanji Ishikawa

This inventor holds 4 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignee: Nisshin Steel Co., Ltd.. Active years: 2003-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hanji Ishikawa. Retrieved from https://idiyas.com/inventor/hanji-ishikawa

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

USPTO Granted Patents = 4 

% Patents Active = 100.0


Average Co-Inventor Count = 3.8

ph-index = 3

Forward Citations = 18(Granted Patents)


Company Filing History:


Years Active: 2003-2005

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4 patents (USPTO):Explore Patents

Title: Hanji Ishikawa: Innovator in Stainless Steel Technology

Introduction

Hanji Ishikawa is a notable inventor based in Amagasaki, Japan. He has made significant contributions to the field of stainless steel technology, particularly in the automotive industry. With a total of 4 patents to his name, Ishikawa's work focuses on enhancing the durability and efficiency of fuel systems.

Latest Patents

Ishikawa's latest patents include a stainless steel fuel tank for automobiles and a stainless steel oil feeding pipe. The stainless steel fuel tank is designed to be fabricated from an austenitic stainless steel sheet that exhibits elongation of 50% or more after fracture. This innovative design allows for the creation of a complex fuel tank shape without work flaws, ensuring excellent corrosion resistance and preventing gasoline diffusion into the open air over extended periods. The stainless steel oil feeding pipe, on the other hand, is made from a welded pipe of corrosion-resistant stainless steel, featuring a fuel-supply opening with high dimensional accuracy. This design enhances the reliability and performance of fuel systems in vehicles.

Career Highlights

Ishikawa is currently employed at Nisshin Steel Co., Ltd., where he continues to develop advanced materials for various applications. His expertise in stainless steel technology has positioned him as a key player in the industry, contributing to innovations that improve product longevity and safety.

Collaborations

Ishikawa has collaborated with several talented individuals, including Masato Otsuka and Satoshi Suzuki. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies.

Conclusion

Hanji Ishikawa's contributions to stainless steel technology have made a significant impact on the automotive industry. His innovative patents reflect a commitment to enhancing the performance and safety of fuel systems. Through his work at Nisshin Steel Co., Ltd., Ishikawa continues to push the boundaries of material science.

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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