Yokohama, Japan

Hasuo Masayoshi

This inventor holds 1 USPTO granted patent. Top assignee: Mitsubishi Chemical Industries Limited. Active years: 1977.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hasuo Masayoshi. Retrieved from https://idiyas.com/inventor/hasuo-masayoshi

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 = 20(Granted Patents)


Company Filing History:


Years Active: 1977

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1 patent (USPTO):Explore Patents

Title: Hasuo Masayoshi: Inventor in Titanium Trichloride Preparation.

Introduction

Hasuo Masayoshi is an inventor associated with Yokohama, Japan, and Mitsubishi Chemical Industries Limited. His recorded patent concerns the preparation of titanium trichloride, a material used as a catalyst in the polymerization of alpha-olefins, particularly propylene.

Latest Patents

The available information lists 1 patent for Hasuo Masayoshi: “Preparation of Titanium Trichloride.” The invention describes producing fine granules of solid titanium trichloride with low aluminum-compound content. The granules are obtained by heating liquefied titanium trichloride in the presence of a liberating agent and separating the resulting precipitate. The liquefied titanium trichloride is preferably prepared by reducing titanium tetrachloride with an organic aluminum compound in the presence of ether and a hydrocarbon.

Career Highlights

Masayoshi’s listed patent reflects work on preparing titanium trichloride in a form suited to catalytic applications. The disclosed process focuses on controlling the granule form and reducing aluminum-compound content.

Collaborations

The listed coworkers associated with Masayoshi are Yamaguchi Kazuo and Kakogawa Genjiro. The available information does not specify their individual roles in the patent or their broader professional relationship with him.

Conclusion

Hasuo Masayoshi’s recorded invention addresses the preparation of fine, low-aluminum titanium trichloride granules for olefin polymerization catalysis.

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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