Tochigi, Japan

Kouichi Shirai

This inventor holds 1 USPTO granted patent. Top assignees: Mitsui Miike Eng. Corp., Rhone-Poulenc Specialties Chimiques. Active years: 1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kouichi Shirai. Retrieved from https://idiyas.com/inventor/kouichi-shirai-9vmc29jg

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 6.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1988

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1 patent (USPTO):Explore Patents

Title: The Innovative Contributions of Kouichi Shirai

Introduction

Kouichi Shirai is a notable inventor based in Tochigi, Japan. He has made significant contributions to the field of gas purification, particularly in processes involving sulfur recovery. His innovative approach has led to the development of a unique patent that addresses environmental concerns.

Latest Patents

Kouichi Shirai holds a patent for a process aimed at removing ammonia (NH.sub.3) from sulfur dioxide (SO.sub.2) containing gas. This process is particularly relevant for the pre-stage gas used in the Claus reaction, which is essential for recovering sulfur. The method utilizes a titanium dioxide (TiO.sub.2) catalyst to effectively purify the gas, showcasing Shirai's commitment to advancing environmental technology.

Career Highlights

Throughout his career, Kouichi Shirai has worked with prominent companies, including Mitsui Miike Engineering Corporation and Rhone-Poulenc Specialties Chimiques. His experience in these organizations has allowed him to refine his skills and contribute to significant advancements in chemical engineering and gas purification technologies.

Collaborations

Kouichi Shirai has collaborated with esteemed colleagues such as Takayuki Fujimoto and Osamu Matsunaga. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Kouichi Shirai's contributions to the field of gas purification through his patented process demonstrate his innovative spirit and dedication to environmental sustainability. His work continues to influence the industry and inspire future advancements in technology.

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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