Niihama, Japan

Tetsuo Fujita

This inventor holds 1 USPTO granted patent. Top assignee: Sumitomo Chemical Company, Limited. Active years: 1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuo Fujita. Retrieved from https://idiyas.com/inventor/tetsuo-fujita-mgocwkh5

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 = 5.0

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 1994

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1 patent (USPTO):Explore Patents

Title: Tetsuo Fujita and His Aluminum Sulfate Preparation Patent.

Introduction

Tetsuo Fujita is an inventor associated with Niihama, Japan, and Sumitomo Chemical Company, Limited. His patent work includes a process for preparing less-colored aluminum sulfate.

Latest Patents

Fujita is credited with 1 patent: “Process for Preparing Aluminum Sulfate.” The process adjusts the hydrogen peroxide concentration in sulfuric acid to 0.1% by weight or less, then brings the acid into contact with an alumina-containing compound to prepare aluminum sulfate with reduced coloration.

Career Highlights

Fujita’s recorded patent reflects work on improving the preparation of an industrial chemical through control of reaction conditions. The available information associates his work with Sumitomo Chemical Company, Limited.

Collaborations

Fujita’s listed coworkers include Toshio Ashitani and Mitsuo Tanjo.

Conclusion

Tetsuo Fujita’s patent documents a process for producing less-colored aluminum sulfate by controlling hydrogen peroxide levels during preparation.

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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