Tokyo, Japan

Isao Tan

This inventor holds 3 USPTO granted patents. Top assignees: Subaru Corporation, N.e. Chemcat Corporation. Active years: 2021-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Isao Tan. Retrieved from https://idiyas.com/inventor/isao-tan-83if6yda

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 = 2.5

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2021-2023

Loading Chart...
3 patents (USPTO):Explore Patents

Title: Isao Tan: Innovator in Exhaust Gas Purification Technologies

Introduction

Isao Tan is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of exhaust gas purification, particularly in the development of advanced catalysts for lean burn gasoline engines. With a total of 3 patents to his name, Tan's work has had a notable impact on environmental technology.

Latest Patents

Tan's latest patents include the LNT layered catalyst for lean burn gasoline engines and an exhaust gas purification apparatus utilizing this catalyst. The LNT layered catalyst is designed to enhance the NOx storage rate, thereby improving the NOx purification rate. This innovative catalyst comprises a substrate with a first catalyst layer that includes ceria-alumina particles carrying platinum (Pt), palladium (Pd), and barium oxide (BaO). The second catalyst layer also contains ceria-alumina particles carrying platinum and rhodium (Rh). The specific composition of these layers is meticulously designed to optimize performance. The exhaust gas purification device features a first catalyst in the exhaust pipe, a bypass pipe, a second catalyst in the bypass pipe, and a switching controller that adjusts the flow path of exhaust gas based on the deterioration of the first catalyst.

Career Highlights

Throughout his career, Isao Tan has worked with notable companies such as Subaru Corporation and N.E. Chemcat Corporation. His experience in these organizations has allowed him to refine his expertise in catalyst development and exhaust gas purification technologies.

Collaborations

Tan has collaborated with esteemed colleagues, including Yasuyoshi Sasaki and Shunsuke Fukutomi. These partnerships have contributed to the advancement of his innovative projects and patents.

Conclusion

Isao Tan's contributions to exhaust gas purification technologies exemplify his commitment to innovation and environmental sustainability. His patents reflect a deep understanding of catalyst chemistry and engineering, making him a key figure in this important field.

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]
Loading…