Yokohama, Japan

Hirokazu Watanabe

This inventor holds 10 USPTO granted patents and 3 EPO patents. Top assignees: Mitsubishi Rayon Company, Limited, Dia-Nitrix Co., Ltd.. Active years: 2003-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirokazu Watanabe. Retrieved from https://idiyas.com/inventor/hirokazu-watanabe-4qd1t1dv

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

Calculating rank

% Patents Active = 80.0


Average Co-Inventor Count = 3.9

ph-index = 3

Forward Citations = 31(Granted Patents)


Location History:

  • Yokohama, JP (2003 - 2015)
  • Otake, JP (2015 - 2016)

Company Filing History:


Years Active: 2003-2016

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10 patents (USPTO):Explore Patents

Title: Hirokazu Watanabe: Innovator in Acrylonitrile Production

Introduction

Hirokazu Watanabe is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of acrylonitrile. With a total of 10 patents to his name, Watanabe's work has had a lasting impact on the industry.

Latest Patents

Watanabe's latest patents focus on innovative methods for producing acrylonitrile. One notable invention involves a vapor phase catalytic ammoxidation process. This method utilizes a fluidized bed catalyst containing molybdenum and bismuth. The process is designed to maintain a specific amount of ammonia per surface area of the catalyst, ensuring a stable and high yield of acrylonitrile over extended periods. Another patent describes a similar process but employs a catalyst made of particles containing iron, antimony, and tellurium. This method also emphasizes maintaining specific atomic ratios to optimize the production yield.

Career Highlights

Throughout his career, Watanabe has worked with notable companies such as Mitsubishi Rayon Company, Limited and Dia-nitrix Co., Ltd. His experience in these organizations has allowed him to refine his expertise in chemical processes and patent development.

Collaborations

Watanabe has collaborated with several professionals in his field, including Kenichi Miyaki and Motoo Yanagita. These partnerships have contributed to the advancement of his research and the successful implementation of his inventions.

Conclusion

Hirokazu Watanabe's innovative approaches to acrylonitrile production exemplify his dedication to advancing chemical engineering. His patents not only reflect his expertise but also contribute to the efficiency and sustainability of industrial processes.

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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