Otake, Japan

Hiroshi Sonobe

This inventor holds 1 USPTO granted patent. Top assignee: Minemet Recherche. Active years: 1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Sonobe. Retrieved from https://idiyas.com/inventor/hiroshi-sonobe-f2xjgj88

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 = 3.0

ph-index = 1

Forward Citations = 10(Granted Patents)


Company Filing History:


Years Active: 1984

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1 patent (USPTO):Explore Patents

Title: Hiroshi Sonobe: Innovator in Methacrylic Acid Ester Preparation

Introduction

Hiroshi Sonobe is a notable inventor based in Otake, Japan. He has made significant contributions to the field of chemical engineering, particularly in the preparation of methacrylic acid esters. His innovative approach has led to the development of a patented process that enhances the efficiency of this chemical reaction.

Latest Patents

Hiroshi Sonobe holds a patent for a process for the preparation of methacrylic acid esters. This process involves reacting methacrylic acid with a lower aliphatic alcohol in the liquid phase using a solid acid catalyst. The reaction is conducted at a molar ratio of alcohol to methacrylic acid of 1.2-3.0 and at a temperature range of 70°C to 100°C. This innovative method improves the overall efficiency and effectiveness of producing methacrylic acid esters.

Career Highlights

Hiroshi Sonobe is associated with Minemet Recherche, where he has been able to apply his expertise in chemical processes. His work has not only contributed to the advancement of chemical engineering but has also positioned him as a key figure in his field.

Collaborations

Hiroshi Sonobe has collaborated with notable colleagues, including Hiroshi Matsumura and Fumiki Murakami. These collaborations have fostered a productive environment for innovation and research within their organization.

Conclusion

Hiroshi Sonobe's contributions to the preparation of methacrylic acid esters exemplify the impact of innovative thinking in chemical engineering. His patented process represents a significant advancement in the field, showcasing his dedication to improving industrial methods.

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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