Company Filing History:
Years Active: 2015-2025
Title: **Koji Umezawa: Innovator in Hydrogen Engine Technology**
Introduction
Koji Umezawa, a prominent inventor based in Susono, Japan, has made significant contributions to the field of hydrogen engine technology, with a total of 6 patents to his name. His innovative designs not only enhance the efficiency of hydrogen engines but also contribute to reducing harmful emissions, showcasing his commitment to environmentally friendly technologies.
Latest Patents
One of Umezawa's latest patents is a **Controller for Hydrogen Engine**. This sophisticated controller manages a hydrogen engine by regulating a selective catalytic reduction (SCR) device within the exhaust passage and controlling a urea addition valve. The unique processing circuitry executes a reduction process that optimizes urea addition based on the deposition amount in the SCR device. Moreover, the controller implements a lean-burn limiting process to ensure that the air-fuel ratio remains within specified limits during the reduction process.
Another notable patent is the **Controller for Internal Combustion Engine**, which incorporates a fuel injection valve designed to inject hydrogen gas into the engine cylinder. This system features a selective catalytic reduction catalyst that effectively eliminates NOx emissions, alongside a urea water injection valve that functions through a tank storing urea water. The controller plays a crucial role in adjusting the injection amount of hydrogen gas based on the detected remaining urea water, helping maintain optimal engine performance.
Career Highlights
Koji Umezawa is currently employed at Toyota Jidosha Kabushiki Kaisha, where he applies his expertise in hydrogen technology. His work is instrumental in advancing Toyota's research and development of sustainable vehicle technology, aligning with global efforts to reduce reliance on fossil fuels.
Collaborations
Throughout his career, Umezawa has collaborated with talented individuals such as Yuto Ikeda and Makoto Yamazaki. Together, they foster innovation and drive the development of cutting-edge technologies in the automotive industry, contributing to a more sustainable future.
Conclusion
Koji Umezawa's innovative work on hydrogen engines represents a significant leap forward in automotive technology. With his latest patents and ongoing contributions at Toyota, he continues to pave the way for advancements that support environmental sustainability and the evolution of modern vehicles. His dedication to innovation not only exemplifies his expertise as an inventor but also highlights the crucial role of technology in addressing global challenges.