Tokuyama, Japan

Osamu Watanabe

This inventor holds 3 USPTO granted patents. Top assignee: Toyo Soda Manufacturing Co., Ltd.. Active years: 1978-1983.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Osamu Watanabe. Retrieved from https://idiyas.com/inventor/osamu-watanabe-5fohfr1w

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


% Patents Active = 100.0

Average Co-Inventor Count = 2.6

ph-index = 2

Forward Citations = 5(Granted Patents)


Location History:

  • Shin-nanyo, JP (1978)
  • Tokuyama, JP (1982 - 1983)

Company Filing History:


Years Active: 1978-1983

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3 patents (USPTO):Explore Patents

Title: The Innovations of Osamu Watanabe

Introduction

Osamu Watanabe is a notable inventor based in Tokuyama, Japan. He has made significant contributions to the field of chemical engineering, particularly in the area of phosphoric acid extraction. With a total of 3 patents to his name, Watanabe's work has had a considerable impact on industrial processes.

Latest Patents

Watanabe's latest patents include a solvent extraction method of phosphoric acid. This method involves counter-currently contacting an impure phosphoric acid solution containing at least 45 wt. % of P.sub.2 O.sub.5 with a partially water-miscible solvent in the presence of sulfuric acid. Another significant patent is for the purification of wet process phosphoric acid, which is obtained through a solvent extraction method using n-butanol and/or isobutanol.

Career Highlights

Watanabe is associated with Toyo Soda Manufacturing Co., Ltd., where he has been instrumental in developing innovative chemical processes. His expertise in solvent extraction techniques has positioned him as a key figure in the industry.

Collaborations

Throughout his career, Watanabe has collaborated with notable colleagues, including Yoichi Hiraga and Sakumi Fujii. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Osamu Watanabe's contributions to the field of chemical engineering, particularly in phosphoric acid extraction, highlight his role as a significant inventor. His patents and collaborations reflect a commitment to advancing 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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