Toyota, Japan

Tuneyuki Tanizawa

This inventor holds 2 USPTO granted patents. Top assignees: Cataler Industrial Co., Ltd., Toyota Jidosha Kabushiki Kaisha. Active years: 1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tuneyuki Tanizawa. Retrieved from https://idiyas.com/inventor/tuneyuki-tanizawa

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 = 4.4

ph-index = 2

Forward Citations = 17(Granted Patents)


Company Filing History:


Years Active: 1999

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2 patents (USPTO):Explore Patents

Title: Innovations of Tuneyuki Tanizawa

Introduction

Tuneyuki Tanizawa is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of exhaust gas purification technology. With a total of two patents to his name, his work focuses on improving the efficiency of catalysts used in automotive applications.

Latest Patents

Tanizawa's latest patents include innovative catalysts designed for purifying exhaust gases. The first patent describes a catalyst that features a heat-resistant support, a porous layer, and a noble metal catalyst ingredient. This catalyst also incorporates an NO.sub.x storage component, which is crucial for enhancing the purification process. In fuel-lean atmospheres, the catalyst oxidizes NO to NO.sub.2, which is then stored and later released in fuel-rich conditions to react with hydrocarbons and carbon monoxide. This design significantly improves the NO.sub.x purifying performance.

The second patent outlines a similar catalyst but emphasizes the strategic placement of ceria (CeO.sub.2) away from the noble metal catalyst. This arrangement allows for controlled oxygen release, further optimizing the catalyst's performance in various atmospheric conditions. Both patents reflect Tanizawa's commitment to advancing automotive technology and reducing harmful emissions.

Career Highlights

Throughout his career, Tanizawa has worked with prominent companies such as Toyota Motor Corporation and Cataler Industrial Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in exhaust gas purification.

Collaborations

Tanizawa has collaborated with notable colleagues, including Naoto Miyoshi and Koichi Kasahara. These partnerships have contributed to the successful development of his patented technologies.

Conclusion

Tuneyuki Tanizawa's contributions to the field of exhaust gas purification through his innovative patents demonstrate his expertise and commitment to environmental sustainability. His work continues to influence the automotive industry and improve air quality.

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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