Tokyo, Japan

Naoki Hiranuma

This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignees: Mitsubishi Heavy Industries Limited, The Tokyo Electric Power Company, Incorporated. Active years: 2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naoki Hiranuma. Retrieved from https://idiyas.com/inventor/naoki-hiranuma

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 = 11.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 2012

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1 patent (USPTO):Explore Patents

Title: Naoki Hiranuma and His Work in Stainless Steel Innovation.

Introduction

Naoki Hiranuma is an inventor associated with Tokyo, Japan. His patent work focuses on austenitic stainless steel designed to resist stress corrosion cracking, along with methods for manufacturing the material and structures that use it. The available information lists 1 patent for him.

Latest Patents

Hiranuma’s listed patent is titled “Austenitic Stainless Steel, Manufacturing Method for the Same, and Structure Using the Same.” It describes a steel composition containing specified amounts of carbon, silicon, manganese, phosphorus, sulfur, nickel, chromium, molybdenum, and nitrogen, with iron and unavoidable impurities making up the balance. The invention also describes solution heat treatment of a billet at 1,000 to 1,150°C. Its proposed applications include piping and in-furnace structures for nuclear reactors.

Career Highlights

Hiranuma’s listed professional affiliations include The Tokyo Electric Power Company, Incorporated, and Mitsubishi Heavy Industries, Ltd. His patent connects materials engineering with demanding industrial applications, particularly equipment used in nuclear reactor environments.

Collaborations

The listed collaborators associated with Hiranuma include Yasuhiro Sakaguchi and Naoki Anahara.

Conclusion

Naoki Hiranuma’s recorded invention addresses stress corrosion resistance in austenitic stainless steel and its manufacture and use in nuclear reactor structures.

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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