Chiba, Japan

Kunio Hirotani

This inventor holds 3 USPTO granted patents and 1 EPO patent. Top assignee: Toyo Engineering Corporation. Active years: 2000-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kunio Hirotani. Retrieved from https://idiyas.com/inventor/kunio-hirotani

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

Calculating rank

% Patents Active = 66.7

 

Average Co-Inventor Count = 2.3

ph-index = 3

Forward Citations = 34(Granted Patents)


Company Filing History:


Years Active: 2000-2012

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3 patents (USPTO):Explore Patents

Title: Kunio Hirotani: Innovator in Chemical Engineering

Introduction

Kunio Hirotani is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of methanol and ammonia. With a total of 3 patents to his name, Hirotani continues to push the boundaries of innovation in his industry.

Latest Patents

Hirotani's latest patents include a groundbreaking method for coproducing methanol and ammonia. This process utilizes natural gas, LPG, butane, or naphtha as raw materials. The invention outlines a methanol production process (A) and an ammonia production process (B), each composed of specific steps designed to enhance efficiency. Another significant patent is for a reformer, which is a device that transforms raw material gas into a synthesis gas rich in hydrogen and carbon monoxide. This device features a vessel, a floating head, multiple reaction tubes, inlets and outlets for raw materials and heating gases, and a cooled fixed tube plate.

Career Highlights

Hirotani is currently employed at Toyo Engineering Corporation, where he applies his expertise in chemical processes. His work has been instrumental in advancing the company's capabilities in chemical production technologies.

Collaborations

Throughout his career, Hirotani has collaborated with esteemed colleagues such as Hitoshi Nakamura and Kazuo Shouji. These partnerships have fostered innovation and contributed to the successful development of new technologies.

Conclusion

Kunio Hirotani stands out as a prominent figure in the field of chemical engineering, with his innovative patents and contributions to the industry. His work continues to influence the production of essential chemicals, showcasing the importance of innovation in engineering.

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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