Toyonaka, Japan

Tagao Toh

This inventor holds 3 USPTO granted patents. Top assignee: Matsushita Electric Industrial Co., Ltd.. Active years: 1979-1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tagao Toh. Retrieved from https://idiyas.com/inventor/tagao-toh

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 = 3

Forward Citations = 74(Granted Patents)


Company Filing History:


Years Active: 1979-1980

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3 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Tagao Toh

Introduction

Tagao Toh is a notable inventor based in Toyonaka, Japan. He has made significant contributions to the field of exhaust gas purification technology. With a total of 3 patents to his name, Toh's work focuses on improving the efficiency and effectiveness of exhaust systems in internal combustion engines.

Latest Patents

Toh's latest patents include innovative devices designed to enhance exhaust gas control. One of his key inventions is an exhaust gas purifier that utilizes a composite sheet formed by sandwiching a catalyst-coated sheet of cloth between heat-resistant metal supporting nets. This composite sheet is strategically placed in an exhaust pipe, allowing exhaust gas to flow along its surfaces and contact the catalyst sheet. The design minimizes gas flow resistance, making it an efficient solution for purifying combustion gases. Another significant patent is a cylindrical catalyst element made from heat-resistant metal, which features a silica cloth with a catalyst on its surface. This element is positioned within the exhaust system to clean exhaust gases before they reach the main catalyst device.

Career Highlights

Tagao Toh is associated with Matsushita Electric Industrial Co., Ltd., a company renowned for its commitment to innovation and technology. His work at Matsushita has allowed him to develop and refine his inventions, contributing to advancements in environmental technology.

Collaborations

Throughout his career, Toh has collaborated with esteemed colleagues such as Kazuo Iwaoka and Minoru Fukada. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in exhaust gas purification.

Conclusion

Tagao Toh's contributions to exhaust gas control technology exemplify his dedication to innovation and environmental sustainability. His patents reflect a commitment to improving engine efficiency and reducing harmful emissions.

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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