Location History:
- Ageo, JP (2017)
- Saitama, JP (2018)
Company Filing History:
2 out of 817 
1 out of 21,893 
Years Active: 2017-2018
Title: Ryoichi Oshima: Innovator in Exhaust Gas Purification Technologies
Introduction
Ryoichi Oshima is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of exhaust gas purification, holding a total of 2 patents. His work focuses on improving the efficiency and effectiveness of catalysts used in reducing harmful emissions.
Latest Patents
Oshima's latest patents include an innovative exhaust gas purifying catalyst designed to reduce an OSC material while maintaining necessary OSC capacity. This invention aims to enhance heat resistance and reactivity of precious metals used in the catalyst. The proposed catalyst consists of a first catalyst layer formed on a substrate made of ceramic or metal, and a second catalyst layer positioned above the first. The first layer contains a precious metal, an OSC material, and alumina, with a specific mass ratio of OSC material to alumina ranging from 1:7 to 1:3. The second layer also comprises a precious metal, an OSC material, and alumina, with a mass ratio of OSC material to alumina between 1:1 and 10:0. Additionally, he has developed a catalyst composition that utilizes non-noble metals as a catalytic activity component, demonstrating excellent catalytic activity even after thermal treatment.
Career Highlights
Throughout his career, Ryoichi Oshima has worked with prominent companies such as Mitsui Mining & Smelting Company, Ltd. and Honda Motor Co., Ltd. His experience in these organizations has contributed to his expertise in catalyst development and exhaust gas purification technologies.
Collaborations
Oshima has collaborated with notable colleagues, including Ohki Houshito and Yunosuke Nakahara. These partnerships have likely enriched his research and development efforts in the field.
Conclusion
Ryoichi Oshima's innovative work in exhaust gas purification technologies has led to significant advancements in catalyst design and efficiency. His contributions are vital in the ongoing efforts to reduce harmful emissions and improve environmental sustainability.